Warning: Permanently added '13.217.217.104' (ED25519) to the list of known hosts.
Running (timeout=18000): unbuffer mock --spec /var/lib/copr-rpmbuild/workspace/workdir-a2j7y4m4/rubygem-sassc/rubygem-sassc.spec --sources /var/lib/copr-rpmbuild/workspace/workdir-a2j7y4m4/rubygem-sassc --resultdir /var/lib/copr-rpmbuild/results --uniqueext 1778363645.064641 -r /var/lib/copr-rpmbuild/results/configs/child.cfg
INFO: mock.py version 6.7 starting (python version = 3.14.2, NVR = mock-6.7-1.fc43), args: /usr/libexec/mock/mock --spec /var/lib/copr-rpmbuild/workspace/workdir-a2j7y4m4/rubygem-sassc/rubygem-sassc.spec --sources /var/lib/copr-rpmbuild/workspace/workdir-a2j7y4m4/rubygem-sassc --resultdir /var/lib/copr-rpmbuild/results --uniqueext 1778363645.064641 -r /var/lib/copr-rpmbuild/results/configs/child.cfg
Start: init plugins
INFO: tmpfs initialized
INFO: selinux enabled
INFO: chroot_scan: initialized
INFO: compress_logs: initialized
Finish: init plugins
INFO: Signal handler active
Start: run
INFO: Start(/var/lib/copr-rpmbuild/workspace/workdir-a2j7y4m4/rubygem-sassc/rubygem-sassc.spec)  Config(fedora-44-x86_64)
Start: clean chroot
Finish: clean chroot
Mock Version: 6.7
INFO: Mock Version: 6.7
Start: chroot init
INFO: mounting tmpfs at /var/lib/mock/fedora-44-x86_64-1778363645.064641/root.
INFO: calling preinit hooks
INFO: enabled root cache
INFO: enabled package manager cache
Start: cleaning package manager metadata
Finish: cleaning package manager metadata
INFO: enabled HW Info plugin
INFO: Package manager dnf5 detected and used (fallback)
INFO: Buildroot is handled by package management from host and used with --installroot:
  rpm-6.0.1-1.fc43.x86_64
  rpm-sequoia-1.10.0-1.fc43.x86_64
  python3-dnf-4.24.0-1.fc43.noarch
  python3-dnf-plugins-core-4.10.1-6.fc43.noarch
  dnf5-5.2.18.0-3.fc43.x86_64
  dnf5-plugins-5.2.18.0-3.fc43.x86_64
Start: installing minimal buildroot with dnf5
Updating and loading repositories:
 Copr repository                        100% | 372.1 KiB/s |  28.3 KiB |  00m00s
 Additional repo https_copr_be_cloud_fe 100% | 266.8 KiB/s |  28.3 KiB |  00m00s
 updates                                100% |  17.1 MiB/s |  11.7 MiB |  00m01s
 fedora                                 100% |  33.8 MiB/s |  37.3 MiB |  00m01s
Repositories loaded.
Package                            Arch   Version                    Repository      Size
Installing group/module packages:
 bash                              x86_64 5.3.9-3.fc44               fedora       8.5 MiB
 bzip2                             x86_64 1.0.8-23.fc44              fedora      95.0 KiB
 coreutils                         x86_64 9.10-3.fc44                fedora       5.6 MiB
 cpio                              x86_64 2.15-9.fc44                fedora       1.1 MiB
 diffutils                         x86_64 3.12-5.fc44                fedora       1.6 MiB
 fedora-release-common             noarch 44-17                      fedora      20.6 KiB
 findutils                         x86_64 1:4.10.0-7.fc44            fedora       1.9 MiB
 gawk                              x86_64 5.3.2-3.fc44               fedora       1.8 MiB
 glibc-minimal-langpack            x86_64 2.43-4.fc44                updates      0.0   B
 grep                              x86_64 3.12-3.fc44                fedora       1.0 MiB
 gzip                              x86_64 1.14-2.fc44                fedora     401.6 KiB
 info                              x86_64 7.2-9.fc44                 fedora     365.6 KiB
 patch                             x86_64 2.8-4.fc44                 fedora     226.6 KiB
 redhat-rpm-config                 noarch 343-19.fc44                fedora     183.6 KiB
 rpm-build                         x86_64 6.0.1-2.fc44               fedora     294.6 KiB
 sed                               x86_64 4.9-7.fc44                 fedora     857.2 KiB
 shadow-utils                      x86_64 2:4.19.0-7.fc44            updates      4.0 MiB
 tar                               x86_64 2:1.35-8.fc44              fedora       3.0 MiB
 unzip                             x86_64 6.0-69.fc44                fedora     445.8 KiB
 util-linux                        x86_64 2.41.4-7.fc44              updates      3.5 MiB
 which                             x86_64 2.23-4.fc44                fedora      83.4 KiB
 xz                                x86_64 1:5.8.2-2.fc44             fedora       1.3 MiB
Installing dependencies:
 R-srpm-macros                     noarch 1.3.7-1.fc44               updates      3.5 KiB
 add-determinism                   x86_64 0.7.3-2.fc44               updates      2.2 MiB
 alternatives                      x86_64 1.33-5.fc44                fedora      62.1 KiB
 ansible-srpm-macros               noarch 1-20.1.fc44                fedora      35.7 KiB
 audit-libs                        x86_64 4.1.4-1.fc44               fedora     390.5 KiB
 binutils                          x86_64 2.46-1.fc44                fedora      27.2 MiB
 build-reproducibility-srpm-macros noarch 0.7.3-2.fc44               updates      1.2 KiB
 bzip2-libs                        x86_64 1.0.8-23.fc44              fedora      80.5 KiB
 ca-certificates                   noarch 2025.2.80_v9.0.304-7.fc44  updates      2.7 MiB
 cmake-srpm-macros                 noarch 4.3.0-1.fc44               fedora     524.0   B
 coreutils-common                  x86_64 9.10-3.fc44                fedora      10.7 MiB
 crypto-policies                   noarch 20251128-3.git19878fe.fc44 fedora     132.6 KiB
 curl                              x86_64 8.18.0-6.fc44              updates    480.0 KiB
 cyrus-sasl-lib                    x86_64 2.1.28-35.fc44             fedora       2.3 MiB
 debugedit                         x86_64 5.3-2.fc44                 updates    220.8 KiB
 dwz                               x86_64 0.16-3.fc44                fedora     290.9 KiB
 ed                                x86_64 1.22.5-2.fc44              fedora     149.7 KiB
 efi-srpm-macros                   noarch 6-6.fc44                   fedora      40.2 KiB
 elfutils                          x86_64 0.195-1.fc44               updates      3.0 MiB
 elfutils-debuginfod-client        x86_64 0.195-1.fc44               updates     83.8 KiB
 elfutils-default-yama-scope       noarch 0.195-1.fc44               updates      1.8 KiB
 elfutils-libelf                   x86_64 0.195-1.fc44               updates      1.2 MiB
 elfutils-libs                     x86_64 0.195-1.fc44               updates    715.3 KiB
 fedora-gpg-keys                   noarch 44-1                       fedora     133.4 KiB
 fedora-release                    noarch 44-17                      fedora       0.0   B
 fedora-release-identity-basic     noarch 44-17                      fedora     629.0   B
 fedora-repos                      noarch 44-1                       fedora       4.9 KiB
 file                              x86_64 5.46-10.fc44               updates    100.1 KiB
 file-libs                         x86_64 5.46-10.fc44               updates     11.9 MiB
 filesystem                        x86_64 3.18-52.fc44               fedora     112.0   B
 filesystem-srpm-macros            noarch 3.18-52.fc44               fedora      38.2 KiB
 fonts-srpm-macros                 noarch 1:5.0.0-2.fc44             fedora      55.8 KiB
 forge-srpm-macros                 noarch 0.4.0-4.fc44               fedora      38.9 KiB
 fpc-srpm-macros                   noarch 1.3-16.fc44                fedora     144.0   B
 gap-srpm-macros                   noarch 2-2.fc44                   fedora       2.1 KiB
 gdb-minimal                       x86_64 17.1-4.fc44                fedora      14.2 MiB
 gdbm-libs                         x86_64 1:1.23-11.fc44             fedora     129.6 KiB
 ghc-srpm-macros                   noarch 1.10-1.fc44                fedora     792.0   B
 glibc                             x86_64 2.43-4.fc44                updates      6.9 MiB
 glibc-common                      x86_64 2.43-4.fc44                updates      1.0 MiB
 glibc-gconv-extra                 x86_64 2.43-4.fc44                updates      7.4 MiB
 gmp                               x86_64 1:6.3.0-5.fc44             fedora     815.2 KiB
 gnat-srpm-macros                  noarch 7-2.fc44                   fedora       1.0 KiB
 gnulib-l10n                       noarch 20241231-2.fc44            fedora     655.0 KiB
 gnupg2                            x86_64 2.4.9-7.fc44               updates      6.5 MiB
 gnupg2-dirmngr                    x86_64 2.4.9-7.fc44               updates    634.0 KiB
 gnupg2-gpg-agent                  x86_64 2.4.9-7.fc44               updates    686.6 KiB
 gnupg2-gpgconf                    x86_64 2.4.9-7.fc44               updates    249.7 KiB
 gnupg2-keyboxd                    x86_64 2.4.9-7.fc44               updates    201.2 KiB
 gnupg2-verify                     x86_64 2.4.9-7.fc44               updates    360.3 KiB
 gnutls                            x86_64 3.8.13-1.fc44              updates      3.8 MiB
 go-srpm-macros                    noarch 3.8.0-2.fc44               fedora      61.9 KiB
 gpgverify                         noarch 2.2-4.fc44                 fedora       8.7 KiB
 ima-evm-utils-libs                x86_64 1.6.2-8.fc44               fedora      60.6 KiB
 jansson                           x86_64 2.14-4.fc44                fedora      88.9 KiB
 java-srpm-macros                  noarch 1-8.fc44                   fedora     870.0   B
 json-c                            x86_64 0.18-8.fc44                fedora      82.6 KiB
 kernel-srpm-macros                noarch 1.0-28.fc44                fedora       1.9 KiB
 keyutils-libs                     x86_64 1.6.3-7.fc44               fedora      54.2 KiB
 krb5-libs                         x86_64 1.22.2-4.fc44              updates      2.4 MiB
 libacl                            x86_64 2.3.2-6.fc44               fedora      35.8 KiB
 libarchive                        x86_64 3.8.7-1.fc44               updates      1.0 MiB
 libassuan                         x86_64 2.5.7-5.fc44               fedora     163.8 KiB
 libattr                           x86_64 2.5.2-8.fc44               fedora      24.3 KiB
 libblkid                          x86_64 2.41.4-7.fc44              updates    274.3 KiB
 libbrotli                         x86_64 1.2.0-3.fc44               fedora     865.0 KiB
 libcap                            x86_64 2.78-1.fc44                updates    212.1 KiB
 libcap-ng                         x86_64 0.9.3-1.fc44               updates     68.8 KiB
 libcbor                           x86_64 0.13.0-2.fc44              fedora      79.5 KiB
 libcom_err                        x86_64 1.47.3-4.fc44              fedora      63.0 KiB
 libcurl                           x86_64 8.18.0-6.fc44              updates      1.0 MiB
 libeconf                          x86_64 0.7.9-3.fc44               fedora      64.8 KiB
 libevent                          x86_64 2.1.12-17.fc44             fedora     978.7 KiB
 libfdisk                          x86_64 2.41.4-7.fc44              updates    388.3 KiB
 libffi                            x86_64 3.5.2-2.fc44               fedora      87.7 KiB
 libfido2                          x86_64 1.16.0-5.fc44              fedora     246.4 KiB
 libfsverity                       x86_64 1.6-4.fc44                 fedora      28.4 KiB
 libgcc                            x86_64 16.1.1-1.fc44              updates    270.6 KiB
 libgcrypt                         x86_64 1.12.2-1.fc44              updates      1.7 MiB
 libgomp                           x86_64 16.1.1-1.fc44              updates    581.4 KiB
 libgpg-error                      x86_64 1.58-2.fc44                fedora     941.6 KiB
 libidn2                           x86_64 2.3.8-3.fc44               fedora     556.4 KiB
 libksba                           x86_64 1.6.7-5.fc44               fedora     414.4 KiB
 liblastlog2                       x86_64 2.41.4-7.fc44              updates     37.6 KiB
 libmount                          x86_64 2.41.4-7.fc44              updates    388.6 KiB
 libnghttp2                        x86_64 1.68.0-3.fc44              fedora     166.1 KiB
 libnghttp3                        x86_64 1.15.0-1.fc44              fedora     159.2 KiB
 libpkgconf                        x86_64 2.5.1-1.fc44               fedora      90.1 KiB
 libpsl                            x86_64 0.21.5-7.fc44              fedora      76.3 KiB
 libselinux                        x86_64 3.10-1.fc44                fedora     201.0 KiB
 libselinux-utils                  x86_64 3.10-1.fc44                fedora     305.7 KiB
 libsemanage                       x86_64 3.10-1.fc44                fedora     312.3 KiB
 libsepol                          x86_64 3.10-1.fc44                fedora     870.0 KiB
 libsmartcols                      x86_64 2.41.4-7.fc44              updates    188.3 KiB
 libssh                            x86_64 0.12.0-1.fc44              fedora     719.1 KiB
 libssh-config                     noarch 0.12.0-1.fc44              fedora     277.0   B
 libstdc++                         x86_64 16.1.1-1.fc44              updates      3.1 MiB
 libtasn1                          x86_64 4.21.0-1.fc44              fedora     180.6 KiB
 libtool-ltdl                      x86_64 2.5.4-10.fc44              fedora      70.0 KiB
 libunistring                      x86_64 1.1-11.fc44                fedora       1.7 MiB
 libusb1                           x86_64 1.0.29-5.fc44              fedora     175.2 KiB
 libuuid                           x86_64 2.41.4-7.fc44              updates     37.2 KiB
 libverto                          x86_64 0.3.2-12.fc44              fedora      25.3 KiB
 libxcrypt                         x86_64 4.5.2-3.fc44               fedora     293.2 KiB
 libxml2                           x86_64 2.12.10-6.fc44             fedora       1.8 MiB
 libzstd                           x86_64 1.5.7-5.fc44               fedora     956.1 KiB
 linkdupes                         x86_64 0.7.3-2.fc44               updates    780.9 KiB
 lua-libs                          x86_64 5.4.8-5.fc44               fedora     281.7 KiB
 lua-srpm-macros                   noarch 1-17.fc44                  fedora       1.3 KiB
 lz4-libs                          x86_64 1.10.0-4.fc44              fedora     157.3 KiB
 mpfr                              x86_64 4.2.2-3.fc44               fedora     849.1 KiB
 ncurses-base                      noarch 6.6-1.fc44                 fedora     329.7 KiB
 ncurses-libs                      x86_64 6.6-1.fc44                 fedora     968.9 KiB
 nettle                            x86_64 3.10.1-3.fc44              fedora     794.3 KiB
 ngtcp2                            x86_64 1.22.1-1.fc44              updates    338.2 KiB
 ngtcp2-crypto-ossl                x86_64 1.22.1-1.fc44              updates     51.6 KiB
 npth                              x86_64 1.8-4.fc44                 fedora      49.5 KiB
 ocaml-srpm-macros                 noarch 11-3.fc44                  fedora       1.9 KiB
 openblas-srpm-macros              noarch 2-21.fc44                  fedora     112.0   B
 openldap                          x86_64 2.6.13-1.fc44              fedora     669.9 KiB
 openssl-libs                      x86_64 1:3.5.5-2.fc44             updates      9.2 MiB
 p11-kit                           x86_64 0.26.2-1.fc44              fedora       2.6 MiB
 p11-kit-trust                     x86_64 0.26.2-1.fc44              fedora     478.3 KiB
 package-notes-srpm-macros         noarch 0.5-16.fc44                fedora       1.6 KiB
 pam-libs                          x86_64 1.7.2-1.fc44               fedora     130.5 KiB
 pcre2                             x86_64 10.47-1.fc44.1             fedora     718.6 KiB
 pcre2-syntax                      noarch 10.47-1.fc44.1             fedora     281.9 KiB
 perl-srpm-macros                  noarch 1-61.fc44                  fedora     861.0   B
 pkgconf                           x86_64 2.5.1-1.fc44               fedora      92.7 KiB
 pkgconf-m4                        noarch 2.5.1-1.fc44               fedora      14.3 KiB
 pkgconf-pkg-config                x86_64 2.5.1-1.fc44               fedora     989.0   B
 policycoreutils                   x86_64 3.10-1.fc44                fedora     884.1 KiB
 popt                              x86_64 1.19-10.fc44               fedora     132.6 KiB
 publicsuffix-list-dafsa           noarch 20260116-1.fc44            fedora      70.4 KiB
 pyproject-srpm-macros             noarch 1.21.0-1.fc44              updates      3.0 KiB
 python-srpm-macros                noarch 3.14-12.fc44               fedora      51.6 KiB
 qt5-srpm-macros                   noarch 5.15.18-2.fc44             fedora     500.0   B
 qt6-srpm-macros                   noarch 6.10.3-1.fc44              updates    472.0   B
 readline                          x86_64 8.3-4.fc44                 fedora     519.5 KiB
 rpm                               x86_64 6.0.1-2.fc44               fedora       3.1 MiB
 rpm-build-libs                    x86_64 6.0.1-2.fc44               fedora     276.3 KiB
 rpm-libs                          x86_64 6.0.1-2.fc44               fedora     961.2 KiB
 rpm-plugin-selinux                x86_64 6.0.1-2.fc44               fedora      11.9 KiB
 rpm-sequoia                       x86_64 1.10.2-1.fc44              updates      2.4 MiB
 rpm-sign-libs                     x86_64 6.0.1-2.fc44               fedora      39.6 KiB
 rust-srpm-macros                  noarch 28.4-3.fc44                fedora       5.5 KiB
 selinux-policy                    noarch 44.1-1.fc44                updates     32.0 KiB
 selinux-policy-targeted           noarch 44.1-1.fc44                updates     18.6 MiB
 setup                             noarch 2.15.0-28.fc44             fedora     724.9 KiB
 sqlite-libs                       x86_64 3.51.2-1.fc44              fedora       1.6 MiB
 systemd-libs                      x86_64 259.5-1.fc44               fedora       2.4 MiB
 systemd-standalone-sysusers       x86_64 259.5-1.fc44               fedora     305.7 KiB
 tpm2-tss                          x86_64 4.1.3-9.fc44               fedora       1.6 MiB
 tree-sitter-srpm-macros           noarch 0.4.2-2.fc44               fedora       8.3 KiB
 util-linux-core                   x86_64 2.41.4-7.fc44              updates      1.5 MiB
 xxhash-libs                       x86_64 0.8.3-4.fc44               fedora      94.0 KiB
 xz-libs                           x86_64 1:5.8.2-2.fc44             fedora     217.7 KiB
 zig-srpm-macros                   noarch 1-8.fc44                   fedora       1.3 KiB
 zip                               x86_64 3.0-45.fc44                fedora     698.0 KiB
 zlib-ng-compat                    x86_64 2.3.3-3.fc44               fedora     165.6 KiB
 zstd                              x86_64 1.5.7-5.fc44               fedora     502.4 KiB
Installing groups:
 Buildsystem building group                                                              

Transaction Summary:
 Installing:       183 packages

Total size of inbound packages is 69 MiB. Need to download 69 MiB.
After this operation, 223 MiB extra will be used (install 223 MiB, remove 0 B).
[  1/183] bzip2-0:1.0.8-23.fc44.x86_64  100% | 930.5 KiB/s |  52.1 KiB |  00m00s
[  2/183] cpio-0:2.15-9.fc44.x86_64     100% |   7.7 MiB/s | 293.3 KiB |  00m00s
[  3/183] coreutils-0:9.10-3.fc44.x86_6 100% |  12.2 MiB/s |   1.2 MiB |  00m00s
[  4/183] bash-0:5.3.9-3.fc44.x86_64    100% |  16.9 MiB/s |   1.9 MiB |  00m00s
[  5/183] diffutils-0:3.12-5.fc44.x86_6 100% |  21.4 MiB/s | 395.3 KiB |  00m00s
[  6/183] fedora-release-common-0:44-17 100% |   1.4 MiB/s |  23.7 KiB |  00m00s
[  7/183] findutils-1:4.10.0-7.fc44.x86 100% |  30.0 MiB/s | 552.5 KiB |  00m00s
[  8/183] gzip-0:1.14-2.fc44.x86_64     100% |  10.3 MiB/s | 179.1 KiB |  00m00s
[  9/183] grep-0:3.12-3.fc44.x86_64     100% |  14.0 MiB/s | 301.6 KiB |  00m00s
[ 10/183] patch-0:2.8-4.fc44.x86_64     100% |   6.6 MiB/s | 115.2 KiB |  00m00s
[ 11/183] redhat-rpm-config-0:343-19.fc 100% |   4.6 MiB/s |  79.4 KiB |  00m00s
[ 12/183] info-0:7.2-9.fc44.x86_64      100% |   6.5 MiB/s | 186.7 KiB |  00m00s
[ 13/183] rpm-build-0:6.0.1-2.fc44.x86_ 100% |   8.0 MiB/s | 139.9 KiB |  00m00s
[ 14/183] sed-0:4.9-7.fc44.x86_64       100% |  17.3 MiB/s | 319.2 KiB |  00m00s
[ 15/183] unzip-0:6.0-69.fc44.x86_64    100% |  11.5 MiB/s | 199.6 KiB |  00m00s
[ 16/183] tar-2:1.35-8.fc44.x86_64      100% |  33.9 MiB/s | 868.2 KiB |  00m00s
[ 17/183] which-0:2.23-4.fc44.x86_64    100% |   2.6 MiB/s |  42.2 KiB |  00m00s
[ 18/183] xz-1:5.8.2-2.fc44.x86_64      100% |  31.2 MiB/s | 607.2 KiB |  00m00s
[ 19/183] gawk-0:5.3.2-3.fc44.x86_64    100% |  47.3 MiB/s |   1.1 MiB |  00m00s
[ 20/183] glibc-minimal-langpack-0:2.43 100% |   2.1 MiB/s |  80.5 KiB |  00m00s
[ 21/183] filesystem-0:3.18-52.fc44.x86 100% |  53.4 MiB/s |   1.3 MiB |  00m00s
[ 22/183] ncurses-libs-0:6.6-1.fc44.x86 100% |  19.8 MiB/s | 344.1 KiB |  00m00s
[ 23/183] shadow-utils-2:4.19.0-7.fc44. 100% |  16.4 MiB/s |   1.3 MiB |  00m00s
[ 24/183] bzip2-libs-0:1.0.8-23.fc44.x8 100% |   2.7 MiB/s |  43.8 KiB |  00m00s
[ 25/183] util-linux-0:2.41.4-7.fc44.x8 100% |  15.3 MiB/s |   1.2 MiB |  00m00s
[ 26/183] gmp-1:6.3.0-5.fc44.x86_64     100% |  17.5 MiB/s | 322.5 KiB |  00m00s
[ 27/183] libacl-0:2.3.2-6.fc44.x86_64  100% |   1.4 MiB/s |  24.8 KiB |  00m00s
[ 28/183] coreutils-common-0:9.10-3.fc4 100% |  76.2 MiB/s |   2.1 MiB |  00m00s
[ 29/183] libattr-0:2.5.2-8.fc44.x86_64 100% |   1.1 MiB/s |  17.9 KiB |  00m00s
[ 30/183] libselinux-0:3.10-1.fc44.x86_ 100% |   6.2 MiB/s | 102.0 KiB |  00m00s
[ 31/183] systemd-libs-0:259.5-1.fc44.x 100% |  44.6 MiB/s | 868.0 KiB |  00m00s
[ 32/183] fedora-repos-0:44-1.noarch    100% | 577.8 KiB/s |   9.2 KiB |  00m00s
[ 33/183] pcre2-0:10.47-1.fc44.1.x86_64 100% |  16.0 MiB/s | 277.7 KiB |  00m00s
[ 34/183] ed-0:1.22.5-2.fc44.x86_64     100% |   4.9 MiB/s |  85.4 KiB |  00m00s
[ 35/183] ansible-srpm-macros-0:1-20.1. 100% |   1.2 MiB/s |  20.1 KiB |  00m00s
[ 36/183] cmake-srpm-macros-0:4.3.0-1.f 100% | 652.2 KiB/s |  10.4 KiB |  00m00s
[ 37/183] dwz-0:0.16-3.fc44.x86_64      100% |   8.5 MiB/s | 138.9 KiB |  00m00s
[ 38/183] efi-srpm-macros-0:6-6.fc44.no 100% |   1.4 MiB/s |  22.6 KiB |  00m00s
[ 39/183] filesystem-srpm-macros-0:3.18 100% |   1.6 MiB/s |  26.6 KiB |  00m00s
[ 40/183] fonts-srpm-macros-1:5.0.0-2.f 100% |   1.7 MiB/s |  27.4 KiB |  00m00s
[ 41/183] forge-srpm-macros-0:0.4.0-4.f 100% |   1.2 MiB/s |  20.0 KiB |  00m00s
[ 42/183] fpc-srpm-macros-0:1.3-16.fc44 100% | 496.2 KiB/s |   7.9 KiB |  00m00s
[ 43/183] gap-srpm-macros-0:2-2.fc44.no 100% | 571.3 KiB/s |   9.1 KiB |  00m00s
[ 44/183] ghc-srpm-macros-0:1.10-1.fc44 100% | 549.4 KiB/s |   8.8 KiB |  00m00s
[ 45/183] gnat-srpm-macros-0:7-2.fc44.n 100% | 546.4 KiB/s |   8.7 KiB |  00m00s
[ 46/183] go-srpm-macros-0:3.8.0-2.fc44 100% |   1.7 MiB/s |  28.2 KiB |  00m00s
[ 47/183] java-srpm-macros-0:1-8.fc44.n 100% | 541.0 KiB/s |   8.1 KiB |  00m00s
[ 48/183] kernel-srpm-macros-0:1.0-28.f 100% | 565.4 KiB/s |   9.0 KiB |  00m00s
[ 49/183] lua-srpm-macros-0:1-17.fc44.n 100% | 554.9 KiB/s |   8.9 KiB |  00m00s
[ 50/183] ocaml-srpm-macros-0:11-3.fc44 100% | 579.7 KiB/s |   9.3 KiB |  00m00s
[ 51/183] openblas-srpm-macros-0:2-21.f 100% | 520.4 KiB/s |   7.8 KiB |  00m00s
[ 52/183] package-notes-srpm-macros-0:0 100% | 568.5 KiB/s |   9.1 KiB |  00m00s
[ 53/183] perl-srpm-macros-0:1-61.fc44. 100% | 561.7 KiB/s |   8.4 KiB |  00m00s
[ 54/183] python-srpm-macros-0:3.14-12. 100% |   1.2 MiB/s |  24.0 KiB |  00m00s
[ 55/183] qt5-srpm-macros-0:5.15.18-2.f 100% | 543.0 KiB/s |   8.7 KiB |  00m00s
[ 56/183] rpm-0:6.0.1-2.fc44.x86_64     100% |  29.7 MiB/s | 578.3 KiB |  00m00s
[ 57/183] rust-srpm-macros-0:28.4-3.fc4 100% | 737.5 KiB/s |  11.1 KiB |  00m00s
[ 58/183] tree-sitter-srpm-macros-0:0.4 100% | 841.9 KiB/s |  13.5 KiB |  00m00s
[ 59/183] zig-srpm-macros-0:1-8.fc44.no 100% | 550.7 KiB/s |   8.8 KiB |  00m00s
[ 60/183] zip-0:3.0-45.fc44.x86_64      100% |  15.2 MiB/s | 264.4 KiB |  00m00s
[ 61/183] popt-0:1.19-10.fc44.x86_64    100% |   4.1 MiB/s |  66.9 KiB |  00m00s
[ 62/183] readline-0:8.3-4.fc44.x86_64  100% |  13.2 MiB/s | 229.8 KiB |  00m00s
[ 63/183] rpm-build-libs-0:6.0.1-2.fc44 100% |   8.1 MiB/s | 132.2 KiB |  00m00s
[ 64/183] rpm-libs-0:6.0.1-2.fc44.x86_6 100% |  22.5 MiB/s | 415.5 KiB |  00m00s
[ 65/183] zstd-0:1.5.7-5.fc44.x86_64    100% |  11.8 MiB/s | 192.5 KiB |  00m00s
[ 66/183] xz-libs-1:5.8.2-2.fc44.x86_64 100% |   7.1 MiB/s | 116.8 KiB |  00m00s
[ 67/183] glibc-common-0:2.43-4.fc44.x8 100% |  40.4 MiB/s | 372.7 KiB |  00m00s
[ 68/183] mpfr-0:4.2.2-3.fc44.x86_64    100% |  20.6 MiB/s | 357.8 KiB |  00m00s
[ 69/183] audit-libs-0:4.1.4-1.fc44.x86 100% |   8.6 MiB/s | 141.6 KiB |  00m00s
[ 70/183] libeconf-0:0.7.9-3.fc44.x86_6 100% |   2.2 MiB/s |  36.2 KiB |  00m00s
[ 71/183] libsemanage-0:3.10-1.fc44.x86 100% |   7.3 MiB/s | 127.3 KiB |  00m00s
[ 72/183] libxcrypt-0:4.5.2-3.fc44.x86_ 100% |   8.0 MiB/s | 131.2 KiB |  00m00s
[ 73/183] pam-libs-0:1.7.2-1.fc44.x86_6 100% |   3.6 MiB/s |  59.1 KiB |  00m00s
[ 74/183] setup-0:2.15.0-28.fc44.noarch 100% |   8.5 MiB/s | 157.2 KiB |  00m00s
[ 75/183] util-linux-core-0:2.41.4-7.fc 100% |  54.4 MiB/s | 557.5 KiB |  00m00s
[ 76/183] zlib-ng-compat-0:2.3.3-3.fc44 100% |   5.6 MiB/s |  91.1 KiB |  00m00s
[ 77/183] ncurses-base-0:6.6-1.fc44.noa 100% |   5.4 MiB/s |  88.0 KiB |  00m00s
[ 78/183] gnulib-l10n-0:20241231-2.fc44 100% |   8.6 MiB/s | 150.3 KiB |  00m00s
[ 79/183] libsepol-0:3.10-1.fc44.x86_64 100% |  21.1 MiB/s | 367.6 KiB |  00m00s
[ 80/183] fedora-gpg-keys-0:44-1.noarch 100% |   8.1 MiB/s | 141.4 KiB |  00m00s
[ 81/183] pcre2-syntax-0:10.47-1.fc44.1 100% |   9.5 MiB/s | 164.7 KiB |  00m00s
[ 82/183] lua-libs-0:5.4.8-5.fc44.x86_6 100% |   8.3 MiB/s | 136.6 KiB |  00m00s
[ 83/183] rpm-sign-libs-0:6.0.1-2.fc44. 100% |   1.7 MiB/s |  28.0 KiB |  00m00s
[ 84/183] libzstd-0:1.5.7-5.fc44.x86_64 100% |  20.9 MiB/s | 364.2 KiB |  00m00s
[ 85/183] sqlite-libs-0:3.51.2-1.fc44.x 100% |  39.0 MiB/s | 799.2 KiB |  00m00s
[ 86/183] ima-evm-utils-libs-0:1.6.2-8. 100% |   1.8 MiB/s |  30.0 KiB |  00m00s
[ 87/183] libfsverity-0:1.6-4.fc44.x86_ 100% |   1.1 MiB/s |  19.2 KiB |  00m00s
[ 88/183] tpm2-tss-0:4.1.3-9.fc44.x86_6 100% |  23.9 MiB/s | 440.9 KiB |  00m00s
[ 89/183] glibc-0:2.43-4.fc44.x86_64    100% | 112.8 MiB/s |   2.4 MiB |  00m00s
[ 90/183] glibc-gconv-extra-0:2.43-4.fc 100% |  90.4 MiB/s |   1.6 MiB |  00m00s
[ 91/183] libgcc-0:16.1.1-1.fc44.x86_64 100% |  18.2 MiB/s | 130.2 KiB |  00m00s
[ 92/183] json-c-0:0.18-8.fc44.x86_64   100% |   2.8 MiB/s |  46.3 KiB |  00m00s
[ 93/183] libusb1-0:1.0.29-5.fc44.x86_6 100% |   5.1 MiB/s |  82.8 KiB |  00m00s
[ 94/183] libstdc++-0:16.1.1-1.fc44.x86 100% |  99.6 MiB/s |   1.0 MiB |  00m00s
[ 95/183] libuuid-0:2.41.4-7.fc44.x86_6 100% |   3.7 MiB/s |  26.8 KiB |  00m00s
[ 96/183] libblkid-0:2.41.4-7.fc44.x86_ 100% |  15.8 MiB/s | 129.6 KiB |  00m00s
[ 97/183] openssl-libs-1:3.5.5-2.fc44.x 100% | 161.5 MiB/s |   2.7 MiB |  00m00s
[ 98/183] crypto-policies-0:20251128-3. 100% |   5.6 MiB/s |  98.3 KiB |  00m00s
[ 99/183] gnupg2-0:2.4.9-7.fc44.x86_64  100% | 150.4 MiB/s |   1.7 MiB |  00m00s
[100/183] gnupg2-dirmngr-0:2.4.9-7.fc44 100% |  34.4 MiB/s | 281.8 KiB |  00m00s
[101/183] gpgverify-0:2.2-4.fc44.noarch 100% | 701.8 KiB/s |  11.2 KiB |  00m00s
[102/183] libmount-0:2.41.4-7.fc44.x86_ 100% |   3.3 MiB/s | 171.1 KiB |  00m00s
[103/183] gnupg2-gpg-agent-0:2.4.9-7.fc 100% |  34.4 MiB/s | 281.7 KiB |  00m00s
[104/183] gnupg2-gpgconf-0:2.4.9-7.fc44 100% |  16.3 MiB/s | 117.1 KiB |  00m00s
[105/183] gnupg2-keyboxd-0:2.4.9-7.fc44 100% |  13.6 MiB/s |  97.3 KiB |  00m00s
[106/183] gnupg2-verify-0:2.4.9-7.fc44. 100% |  10.8 MiB/s | 176.9 KiB |  00m00s
[107/183] libassuan-0:2.5.7-5.fc44.x86_ 100% |   4.2 MiB/s |  68.9 KiB |  00m00s
[108/183] libgpg-error-0:1.58-2.fc44.x8 100% |  14.6 MiB/s | 254.1 KiB |  00m00s
[109/183] npth-0:1.8-4.fc44.x86_64      100% |   1.7 MiB/s |  25.8 KiB |  00m00s
[110/183] libksba-0:1.6.7-5.fc44.x86_64 100% |  10.2 MiB/s | 167.4 KiB |  00m00s
[111/183] openldap-0:2.6.13-1.fc44.x86_ 100% |  15.6 MiB/s | 271.6 KiB |  00m00s
[112/183] cyrus-sasl-lib-0:2.1.28-35.fc 100% |  39.1 MiB/s | 800.7 KiB |  00m00s
[113/183] libevent-0:2.1.12-17.fc44.x86 100% |  16.5 MiB/s | 287.4 KiB |  00m00s
[114/183] libtool-ltdl-0:2.5.4-10.fc44. 100% |   2.1 MiB/s |  37.0 KiB |  00m00s
[115/183] libcap-0:2.78-1.fc44.x86_64   100% |  12.3 MiB/s |  88.1 KiB |  00m00s
[116/183] rpm-sequoia-0:1.10.2-1.fc44.x 100% |  99.4 MiB/s | 916.2 KiB |  00m00s
[117/183] gdbm-libs-1:1.23-11.fc44.x86_ 100% |   3.4 MiB/s |  58.8 KiB |  00m00s
[118/183] elfutils-libelf-0:0.195-1.fc4 100% |  29.3 MiB/s | 210.0 KiB |  00m00s
[119/183] elfutils-libs-0:0.195-1.fc44. 100% |  39.5 MiB/s | 283.0 KiB |  00m00s
[120/183] elfutils-debuginfod-client-0: 100% |   6.5 MiB/s |  46.2 KiB |  00m00s
[121/183] elfutils-0:0.195-1.fc44.x86_6 100% |  71.8 MiB/s | 588.4 KiB |  00m00s
[122/183] file-libs-0:5.46-10.fc44.x86_ 100% | 104.2 MiB/s | 853.6 KiB |  00m00s
[123/183] file-0:5.46-10.fc44.x86_64    100% |   5.9 MiB/s |  48.7 KiB |  00m00s
[124/183] libgomp-0:16.1.1-1.fc44.x86_6 100% |  47.8 MiB/s | 391.9 KiB |  00m00s
[125/183] debugedit-0:5.3-2.fc44.x86_64 100% |  12.2 MiB/s |  87.8 KiB |  00m00s
[126/183] libarchive-0:3.8.7-1.fc44.x86 100% |  28.8 MiB/s | 442.4 KiB |  00m00s
[127/183] libxml2-0:2.12.10-6.fc44.x86_ 100% |  35.4 MiB/s | 724.6 KiB |  00m00s
[128/183] lz4-libs-0:1.10.0-4.fc44.x86_ 100% |   4.5 MiB/s |  77.7 KiB |  00m00s
[129/183] alternatives-0:1.33-5.fc44.x8 100% |   2.5 MiB/s |  40.8 KiB |  00m00s
[130/183] jansson-0:2.14-4.fc44.x86_64  100% |   2.9 MiB/s |  47.1 KiB |  00m00s
[131/183] pkgconf-pkg-config-0:2.5.1-1. 100% | 631.2 KiB/s |   9.5 KiB |  00m00s
[132/183] pkgconf-0:2.5.1-1.fc44.x86_64 100% |   3.0 MiB/s |  48.7 KiB |  00m00s
[133/183] binutils-0:2.46-1.fc44.x86_64 100% | 119.7 MiB/s |   6.1 MiB |  00m00s
[134/183] pkgconf-m4-0:2.5.1-1.fc44.noa 100% | 687.6 KiB/s |  13.8 KiB |  00m00s
[135/183] curl-0:8.18.0-6.fc44.x86_64   100% |  29.3 MiB/s | 240.0 KiB |  00m00s
[136/183] libpkgconf-0:2.5.1-1.fc44.x86 100% |   2.6 MiB/s |  42.7 KiB |  00m00s
[137/183] R-srpm-macros-0:1.3.7-1.fc44. 100% |   1.5 MiB/s |  11.0 KiB |  00m00s
[138/183] build-reproducibility-srpm-ma 100% |   1.9 MiB/s |  13.3 KiB |  00m00s
[139/183] add-determinism-0:0.7.3-2.fc4 100% |  59.6 MiB/s | 854.6 KiB |  00m00s
[140/183] pyproject-srpm-macros-0:1.21. 100% |   2.1 MiB/s |  14.8 KiB |  00m00s
[141/183] linkdupes-0:0.7.3-2.fc44.x86_ 100% |  42.1 MiB/s | 344.8 KiB |  00m00s
[142/183] qt6-srpm-macros-0:6.10.3-1.fc 100% |   1.3 MiB/s |   9.2 KiB |  00m00s
[143/183] libcap-ng-0:0.9.3-1.fc44.x86_ 100% |   4.8 MiB/s |  34.2 KiB |  00m00s
[144/183] libsmartcols-0:2.41.4-7.fc44. 100% |  12.1 MiB/s |  86.9 KiB |  00m00s
[145/183] libfdisk-0:2.41.4-7.fc44.x86_ 100% |  23.5 MiB/s | 168.3 KiB |  00m00s
[146/183] liblastlog2-0:2.41.4-7.fc44.x 100% |   3.3 MiB/s |  23.5 KiB |  00m00s
[147/183] ca-certificates-0:2025.2.80_v 100% |  95.2 MiB/s | 974.8 KiB |  00m00s
[148/183] libgcrypt-0:1.12.2-1.fc44.x86 100% |  76.9 MiB/s | 629.8 KiB |  00m00s
[149/183] gnutls-0:3.8.13-1.fc44.x86_64 100% | 129.7 MiB/s |   1.4 MiB |  00m00s
[150/183] libidn2-0:2.3.8-3.fc44.x86_64 100% |  10.1 MiB/s | 175.6 KiB |  00m00s
[151/183] libtasn1-0:4.21.0-1.fc44.x86_ 100% |   4.6 MiB/s |  76.0 KiB |  00m00s
[152/183] libunistring-0:1.1-11.fc44.x8 100% |  29.7 MiB/s | 547.8 KiB |  00m00s
[153/183] nettle-0:3.10.1-3.fc44.x86_64 100% |  24.6 MiB/s | 428.0 KiB |  00m00s
[154/183] p11-kit-0:0.26.2-1.fc44.x86_6 100% |  30.1 MiB/s | 555.7 KiB |  00m00s
[155/183] elfutils-default-yama-scope-0 100% |   1.6 MiB/s |  11.2 KiB |  00m00s
[156/183] libffi-0:3.5.2-2.fc44.x86_64  100% |   2.8 MiB/s |  42.4 KiB |  00m00s
[157/183] p11-kit-trust-0:0.26.2-1.fc44 100% |   8.9 MiB/s | 146.4 KiB |  00m00s
[158/183] fedora-release-0:44-17.noarch 100% | 782.3 KiB/s |  12.5 KiB |  00m00s
[159/183] xxhash-libs-0:0.8.3-4.fc44.x8 100% |   2.5 MiB/s |  41.2 KiB |  00m00s
[160/183] systemd-standalone-sysusers-0 100% |   3.3 MiB/s | 151.0 KiB |  00m00s
[161/183] fedora-release-identity-basic 100% | 830.0 KiB/s |  13.3 KiB |  00m00s
[162/183] libcurl-0:8.18.0-6.fc44.x86_6 100% |  55.5 MiB/s | 454.8 KiB |  00m00s
[163/183] libbrotli-0:1.2.0-3.fc44.x86_ 100% |  20.0 MiB/s | 347.8 KiB |  00m00s
[164/183] libnghttp2-0:1.68.0-3.fc44.x8 100% |   4.4 MiB/s |  77.2 KiB |  00m00s
[165/183] libnghttp3-0:1.15.0-1.fc44.x8 100% |   4.5 MiB/s |  73.9 KiB |  00m00s
[166/183] libpsl-0:0.21.5-7.fc44.x86_64 100% |   3.5 MiB/s |  65.3 KiB |  00m00s
[167/183] libssh-0:0.12.0-1.fc44.x86_64 100% |  16.9 MiB/s | 293.8 KiB |  00m00s
[168/183] publicsuffix-list-dafsa-0:202 100% |   3.3 MiB/s |  60.3 KiB |  00m00s
[169/183] libfido2-0:1.16.0-5.fc44.x86_ 100% |   6.4 MiB/s | 104.5 KiB |  00m00s
[170/183] libssh-config-0:0.12.0-1.fc44 100% | 523.4 KiB/s |   9.4 KiB |  00m00s
[171/183] libcbor-0:0.13.0-2.fc44.x86_6 100% |   2.2 MiB/s |  36.0 KiB |  00m00s
[172/183] selinux-policy-0:44.1-1.fc44. 100% |  10.2 MiB/s |  73.3 KiB |  00m00s
[173/183] selinux-policy-targeted-0:44. 100% | 284.3 MiB/s |   6.8 MiB |  00m00s
[174/183] policycoreutils-0:3.10-1.fc44 100% |  14.9 MiB/s | 258.7 KiB |  00m00s
[175/183] rpm-plugin-selinux-0:6.0.1-2. 100% |   1.2 MiB/s |  19.2 KiB |  00m00s
[176/183] libselinux-utils-0:3.10-1.fc4 100% |   7.3 MiB/s | 119.6 KiB |  00m00s
[177/183] krb5-libs-0:1.22.2-4.fc44.x86 100% |  87.1 MiB/s | 802.6 KiB |  00m00s
[178/183] keyutils-libs-0:1.6.3-7.fc44. 100% |   1.9 MiB/s |  31.5 KiB |  00m00s
[179/183] libcom_err-0:1.47.3-4.fc44.x8 100% |   1.6 MiB/s |  27.1 KiB |  00m00s
[180/183] ngtcp2-0:1.22.1-1.fc44.x86_64 100% |  22.0 MiB/s | 157.4 KiB |  00m00s
[181/183] libverto-0:0.3.2-12.fc44.x86_ 100% |   1.3 MiB/s |  21.1 KiB |  00m00s
[182/183] ngtcp2-crypto-ossl-0:1.22.1-1 100% |   3.9 MiB/s |  27.8 KiB |  00m00s
[183/183] gdb-minimal-0:17.1-4.fc44.x86 100% |  14.4 MiB/s |   4.7 MiB |  00m00s
--------------------------------------------------------------------------------
[183/183] Total                         100% |  52.3 MiB/s |  68.9 MiB |  00m01s
Running transaction
Importing OpenPGP key 0x6D9F90A6:
 UserID     : "Fedora (44) <fedora-44-primary@fedoraproject.org>"
 Fingerprint: 36F612DCF27F7D1A48A835E4DBFCF71C6D9F90A6
 From       : file:///usr/share/distribution-gpg-keys/fedora/RPM-GPG-KEY-fedora-44-primary
The key was successfully imported.
[  1/185] Verify package files          100% | 481.0   B/s | 183.0   B |  00m00s
[  2/185] Prepare transaction           100% |   3.2 KiB/s | 183.0   B |  00m00s
[  3/185] Installing libgcc-0:16.1.1-1. 100% | 266.0 MiB/s | 272.3 KiB |  00m00s
[  4/185] Installing libssh-config-0:0. 100% |   0.0   B/s | 816.0   B |  00m00s
[  5/185] Installing publicsuffix-list- 100% |   0.0   B/s |  71.1 KiB |  00m00s
[  6/185] Installing fedora-release-ide 100% |   0.0   B/s | 888.0   B |  00m00s
[  7/185] Installing fedora-gpg-keys-0: 100% |  44.5 MiB/s | 182.1 KiB |  00m00s
[  8/185] Installing fedora-repos-0:44- 100% |   0.0   B/s |   5.7 KiB |  00m00s
[  9/185] Installing fedora-release-com 100% |  24.3 MiB/s |  24.9 KiB |  00m00s
[ 10/185] Installing fedora-release-0:4 100% |   9.3 KiB/s | 124.0   B |  00m00s
>>> Running sysusers scriptlet: setup-0:2.15.0-28.fc44.noarch                   
>>> Finished sysusers scriptlet: setup-0:2.15.0-28.fc44.noarch                  
>>> Scriptlet output:                                                           
>>> Creating group 'adm' with GID 4.                                            
>>> Creating group 'audio' with GID 63.                                         
>>> Creating group 'cdrom' with GID 11.                                         
>>> Creating group 'clock' with GID 103.                                        
>>> Creating group 'dialout' with GID 18.                                       
>>> Creating group 'disk' with GID 6.                                           
>>> Creating group 'floppy' with GID 19.                                        
>>> Creating group 'ftp' with GID 50.                                           
>>> Creating group 'games' with GID 20.                                         
>>> Creating group 'input' with GID 104.                                        
>>> Creating group 'kmem' with GID 9.                                           
>>> Creating group 'kvm' with GID 36.                                           
>>> Creating group 'lock' with GID 54.                                          
>>> Creating group 'lp' with GID 7.                                             
>>> Creating group 'mail' with GID 12.                                          
>>> Creating group 'man' with GID 15.                                           
>>> Creating group 'mem' with GID 8.                                            
>>> Creating group 'nobody' with GID 65534.                                     
>>> Creating group 'render' with GID 105.                                       
>>> Creating group 'root' with GID 0.                                           
>>> Creating group 'sgx' with GID 106.                                          
>>> Creating group 'sys' with GID 3.                                            
>>> Creating group 'tape' with GID 33.                                          
>>> Creating group 'tty' with GID 5.                                            
>>> Creating group 'users' with GID 100.                                        
>>> Creating group 'utmp' with GID 22.                                          
>>> Creating group 'video' with GID 39.                                         
>>> Creating group 'wheel' with GID 10.                                         
>>> Creating user 'adm' (adm) with UID 3 and GID 4.                             
>>> Creating group 'bin' with GID 1.                                            
>>> Creating user 'bin' (bin) with UID 1 and GID 1.                             
>>> Creating group 'daemon' with GID 2.                                         
>>> Creating user 'daemon' (daemon) with UID 2 and GID 2.                       
>>> Creating user 'ftp' (FTP User) with UID 14 and GID 50.                      
>>> Creating user 'games' (games) with UID 12 and GID 100.                      
>>> Creating user 'halt' (halt) with UID 7 and GID 0.                           
>>> Creating user 'lp' (lp) with UID 4 and GID 7.                               
>>> Creating user 'mail' (mail) with UID 8 and GID 12.                          
>>> Creating user 'nobody' (Kernel Overflow User) with UID 65534 and GID 65534. 
>>> Creating user 'operator' (operator) with UID 11 and GID 0.                  
>>> Creating user 'root' (Super User) with UID 0 and GID 0.                     
>>> Creating user 'shutdown' (shutdown) with UID 6 and GID 0.                   
>>> Creating user 'sync' (sync) with UID 5 and GID 0.                           
>>>                                                                             
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[104/185] Installing zstd-0:1.5.7-5.fc4 100% |  30.9 MiB/s | 506.0 KiB |  00m00s
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>>> Running sysusers scriptlet: tpm2-tss-0:4.1.3-9.fc44.x86_64                  
>>> Finished sysusers scriptlet: tpm2-tss-0:4.1.3-9.fc44.x86_64                 
>>> Scriptlet output:                                                           
>>> Creating group 'tss' with GID 59.                                           
>>> Creating user 'tss' (Account used for TPM access) with UID 59 and GID 59.   
>>>                                                                             
[106/185] Installing tpm2-tss-0:4.1.3-9 100% | 233.3 MiB/s |   1.6 MiB |  00m00s
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[181/185] Installing R-srpm-macros-0:1. 100% |   0.0   B/s |   4.4 KiB |  00m00s
[182/185] Installing rpm-plugin-selinux 100% |   0.0   B/s |  12.9 KiB |  00m00s
[183/185] Installing which-0:2.23-4.fc4 100% |   6.0 MiB/s |  85.6 KiB |  00m00s
[184/185] Installing shadow-utils-2:4.1 100% | 134.3 MiB/s |   4.0 MiB |  00m00s
[185/185] Installing info-0:7.2-9.fc44. 100% |  48.7 KiB/s | 366.0 KiB |  00m08s
Complete!
Finish: installing minimal buildroot with dnf5
Start: creating root cache
Finish: creating root cache
Finish: chroot init
INFO: Installed packages:
INFO: R-srpm-macros-1.3.7-1.fc44.noarch
add-determinism-0.7.3-2.fc44.x86_64
alternatives-1.33-5.fc44.x86_64
ansible-srpm-macros-1-20.1.fc44.noarch
audit-libs-4.1.4-1.fc44.x86_64
bash-5.3.9-3.fc44.x86_64
binutils-2.46-1.fc44.x86_64
build-reproducibility-srpm-macros-0.7.3-2.fc44.noarch
bzip2-1.0.8-23.fc44.x86_64
bzip2-libs-1.0.8-23.fc44.x86_64
ca-certificates-2025.2.80_v9.0.304-7.fc44.noarch
cmake-srpm-macros-4.3.0-1.fc44.noarch
coreutils-9.10-3.fc44.x86_64
coreutils-common-9.10-3.fc44.x86_64
cpio-2.15-9.fc44.x86_64
crypto-policies-20251128-3.git19878fe.fc44.noarch
curl-8.18.0-6.fc44.x86_64
cyrus-sasl-lib-2.1.28-35.fc44.x86_64
debugedit-5.3-2.fc44.x86_64
diffutils-3.12-5.fc44.x86_64
dwz-0.16-3.fc44.x86_64
ed-1.22.5-2.fc44.x86_64
efi-srpm-macros-6-6.fc44.noarch
elfutils-0.195-1.fc44.x86_64
elfutils-debuginfod-client-0.195-1.fc44.x86_64
elfutils-default-yama-scope-0.195-1.fc44.noarch
elfutils-libelf-0.195-1.fc44.x86_64
elfutils-libs-0.195-1.fc44.x86_64
fedora-gpg-keys-44-1.noarch
fedora-release-44-17.noarch
fedora-release-common-44-17.noarch
fedora-release-identity-basic-44-17.noarch
fedora-repos-44-1.noarch
file-5.46-10.fc44.x86_64
file-libs-5.46-10.fc44.x86_64
filesystem-3.18-52.fc44.x86_64
filesystem-srpm-macros-3.18-52.fc44.noarch
findutils-4.10.0-7.fc44.x86_64
fonts-srpm-macros-5.0.0-2.fc44.noarch
forge-srpm-macros-0.4.0-4.fc44.noarch
fpc-srpm-macros-1.3-16.fc44.noarch
gap-srpm-macros-2-2.fc44.noarch
gawk-5.3.2-3.fc44.x86_64
gdb-minimal-17.1-4.fc44.x86_64
gdbm-libs-1.23-11.fc44.x86_64
ghc-srpm-macros-1.10-1.fc44.noarch
glibc-2.43-4.fc44.x86_64
glibc-common-2.43-4.fc44.x86_64
glibc-gconv-extra-2.43-4.fc44.x86_64
glibc-minimal-langpack-2.43-4.fc44.x86_64
gmp-6.3.0-5.fc44.x86_64
gnat-srpm-macros-7-2.fc44.noarch
gnulib-l10n-20241231-2.fc44.noarch
gnupg2-2.4.9-7.fc44.x86_64
gnupg2-dirmngr-2.4.9-7.fc44.x86_64
gnupg2-gpg-agent-2.4.9-7.fc44.x86_64
gnupg2-gpgconf-2.4.9-7.fc44.x86_64
gnupg2-keyboxd-2.4.9-7.fc44.x86_64
gnupg2-verify-2.4.9-7.fc44.x86_64
gnutls-3.8.13-1.fc44.x86_64
go-srpm-macros-3.8.0-2.fc44.noarch
gpg-pubkey-36f612dcf27f7d1a48a835e4dbfcf71c6d9f90a6-6786af3b
gpgverify-2.2-4.fc44.noarch
grep-3.12-3.fc44.x86_64
gzip-1.14-2.fc44.x86_64
ima-evm-utils-libs-1.6.2-8.fc44.x86_64
info-7.2-9.fc44.x86_64
jansson-2.14-4.fc44.x86_64
java-srpm-macros-1-8.fc44.noarch
json-c-0.18-8.fc44.x86_64
kernel-srpm-macros-1.0-28.fc44.noarch
keyutils-libs-1.6.3-7.fc44.x86_64
krb5-libs-1.22.2-4.fc44.x86_64
libacl-2.3.2-6.fc44.x86_64
libarchive-3.8.7-1.fc44.x86_64
libassuan-2.5.7-5.fc44.x86_64
libattr-2.5.2-8.fc44.x86_64
libblkid-2.41.4-7.fc44.x86_64
libbrotli-1.2.0-3.fc44.x86_64
libcap-2.78-1.fc44.x86_64
libcap-ng-0.9.3-1.fc44.x86_64
libcbor-0.13.0-2.fc44.x86_64
libcom_err-1.47.3-4.fc44.x86_64
libcurl-8.18.0-6.fc44.x86_64
libeconf-0.7.9-3.fc44.x86_64
libevent-2.1.12-17.fc44.x86_64
libfdisk-2.41.4-7.fc44.x86_64
libffi-3.5.2-2.fc44.x86_64
libfido2-1.16.0-5.fc44.x86_64
libfsverity-1.6-4.fc44.x86_64
libgcc-16.1.1-1.fc44.x86_64
libgcrypt-1.12.2-1.fc44.x86_64
libgomp-16.1.1-1.fc44.x86_64
libgpg-error-1.58-2.fc44.x86_64
libidn2-2.3.8-3.fc44.x86_64
libksba-1.6.7-5.fc44.x86_64
liblastlog2-2.41.4-7.fc44.x86_64
libmount-2.41.4-7.fc44.x86_64
libnghttp2-1.68.0-3.fc44.x86_64
libnghttp3-1.15.0-1.fc44.x86_64
libpkgconf-2.5.1-1.fc44.x86_64
libpsl-0.21.5-7.fc44.x86_64
libselinux-3.10-1.fc44.x86_64
libselinux-utils-3.10-1.fc44.x86_64
libsemanage-3.10-1.fc44.x86_64
libsepol-3.10-1.fc44.x86_64
libsmartcols-2.41.4-7.fc44.x86_64
libssh-0.12.0-1.fc44.x86_64
libssh-config-0.12.0-1.fc44.noarch
libstdc++-16.1.1-1.fc44.x86_64
libtasn1-4.21.0-1.fc44.x86_64
libtool-ltdl-2.5.4-10.fc44.x86_64
libunistring-1.1-11.fc44.x86_64
libusb1-1.0.29-5.fc44.x86_64
libuuid-2.41.4-7.fc44.x86_64
libverto-0.3.2-12.fc44.x86_64
libxcrypt-4.5.2-3.fc44.x86_64
libxml2-2.12.10-6.fc44.x86_64
libzstd-1.5.7-5.fc44.x86_64
linkdupes-0.7.3-2.fc44.x86_64
lua-libs-5.4.8-5.fc44.x86_64
lua-srpm-macros-1-17.fc44.noarch
lz4-libs-1.10.0-4.fc44.x86_64
mpfr-4.2.2-3.fc44.x86_64
ncurses-base-6.6-1.fc44.noarch
ncurses-libs-6.6-1.fc44.x86_64
nettle-3.10.1-3.fc44.x86_64
ngtcp2-1.22.1-1.fc44.x86_64
ngtcp2-crypto-ossl-1.22.1-1.fc44.x86_64
npth-1.8-4.fc44.x86_64
ocaml-srpm-macros-11-3.fc44.noarch
openblas-srpm-macros-2-21.fc44.noarch
openldap-2.6.13-1.fc44.x86_64
openssl-libs-3.5.5-2.fc44.x86_64
p11-kit-0.26.2-1.fc44.x86_64
p11-kit-trust-0.26.2-1.fc44.x86_64
package-notes-srpm-macros-0.5-16.fc44.noarch
pam-libs-1.7.2-1.fc44.x86_64
patch-2.8-4.fc44.x86_64
pcre2-10.47-1.fc44.1.x86_64
pcre2-syntax-10.47-1.fc44.1.noarch
perl-srpm-macros-1-61.fc44.noarch
pkgconf-2.5.1-1.fc44.x86_64
pkgconf-m4-2.5.1-1.fc44.noarch
pkgconf-pkg-config-2.5.1-1.fc44.x86_64
policycoreutils-3.10-1.fc44.x86_64
popt-1.19-10.fc44.x86_64
publicsuffix-list-dafsa-20260116-1.fc44.noarch
pyproject-srpm-macros-1.21.0-1.fc44.noarch
python-srpm-macros-3.14-12.fc44.noarch
qt5-srpm-macros-5.15.18-2.fc44.noarch
qt6-srpm-macros-6.10.3-1.fc44.noarch
readline-8.3-4.fc44.x86_64
redhat-rpm-config-343-19.fc44.noarch
rpm-6.0.1-2.fc44.x86_64
rpm-build-6.0.1-2.fc44.x86_64
rpm-build-libs-6.0.1-2.fc44.x86_64
rpm-libs-6.0.1-2.fc44.x86_64
rpm-plugin-selinux-6.0.1-2.fc44.x86_64
rpm-sequoia-1.10.2-1.fc44.x86_64
rpm-sign-libs-6.0.1-2.fc44.x86_64
rust-srpm-macros-28.4-3.fc44.noarch
sed-4.9-7.fc44.x86_64
selinux-policy-44.1-1.fc44.noarch
selinux-policy-targeted-44.1-1.fc44.noarch
setup-2.15.0-28.fc44.noarch
shadow-utils-4.19.0-7.fc44.x86_64
sqlite-libs-3.51.2-1.fc44.x86_64
systemd-libs-259.5-1.fc44.x86_64
systemd-standalone-sysusers-259.5-1.fc44.x86_64
tar-1.35-8.fc44.x86_64
tpm2-tss-4.1.3-9.fc44.x86_64
tree-sitter-srpm-macros-0.4.2-2.fc44.noarch
unzip-6.0-69.fc44.x86_64
util-linux-2.41.4-7.fc44.x86_64
util-linux-core-2.41.4-7.fc44.x86_64
which-2.23-4.fc44.x86_64
xxhash-libs-0.8.3-4.fc44.x86_64
xz-5.8.2-2.fc44.x86_64
xz-libs-5.8.2-2.fc44.x86_64
zig-srpm-macros-1-8.fc44.noarch
zip-3.0-45.fc44.x86_64
zlib-ng-compat-2.3.3-3.fc44.x86_64
zstd-1.5.7-5.fc44.x86_64
Start: buildsrpm
Start: rpmbuild -bs
Building target platforms: x86_64
Building for target x86_64
setting SOURCE_DATE_EPOCH=1778284800
Wrote: /builddir/build/SRPMS/rubygem-sassc-2.4.0-2.fc44.src.rpm
Finish: rpmbuild -bs
INFO: chroot_scan: 1 files copied to /var/lib/copr-rpmbuild/results/chroot_scan
INFO: /var/lib/mock/fedora-44-x86_64-1778363645.064641/root/var/log/dnf5.log
INFO: chroot_scan: creating tarball /var/lib/copr-rpmbuild/results/chroot_scan.tar.gz
/bin/tar: Removing leading `/' from member names
Finish: buildsrpm
INFO: Done(/var/lib/copr-rpmbuild/workspace/workdir-a2j7y4m4/rubygem-sassc/rubygem-sassc.spec) Config(child) 0 minutes 20 seconds
INFO: Results and/or logs in: /var/lib/copr-rpmbuild/results
INFO: Cleaning up build root ('cleanup_on_success=True')
Start: clean chroot
INFO: unmounting tmpfs.
Finish: clean chroot
INFO: Start(/var/lib/copr-rpmbuild/results/rubygem-sassc-2.4.0-2.fc44.src.rpm)  Config(fedora-44-x86_64)
Start: chroot init
INFO: mounting tmpfs at /var/lib/mock/fedora-44-x86_64-1778363645.064641/root.
INFO: calling preinit hooks
INFO: enabled root cache
Start: unpacking root cache
Finish: unpacking root cache
INFO: enabled package manager cache
Start: cleaning package manager metadata
Finish: cleaning package manager metadata
INFO: enabled HW Info plugin
INFO: Buildroot is handled by package management from host and used with --installroot:
  rpm-6.0.1-1.fc43.x86_64
  rpm-sequoia-1.10.0-1.fc43.x86_64
  python3-dnf-4.24.0-1.fc43.noarch
  python3-dnf-plugins-core-4.10.1-6.fc43.noarch
  dnf5-5.2.18.0-3.fc43.x86_64
  dnf5-plugins-5.2.18.0-3.fc43.x86_64
Finish: chroot init
Start: build phase for rubygem-sassc-2.4.0-2.fc44.src.rpm
Start: build setup for rubygem-sassc-2.4.0-2.fc44.src.rpm
Building target platforms: x86_64
Building for target x86_64
setting SOURCE_DATE_EPOCH=1778284800
Wrote: /builddir/build/SRPMS/rubygem-sassc-2.4.0-2.fc44.src.rpm
Updating and loading repositories:
 Additional repo https_copr_be_cloud_fe 100% |  89.6 KiB/s |   1.5 KiB |  00m00s
 Copr repository                        100% |  89.6 KiB/s |   1.5 KiB |  00m00s
 fedora                                 100% |  75.9 KiB/s |  27.6 KiB |  00m00s
 updates                                100% |  92.3 KiB/s |  27.5 KiB |  00m00s
Repositories loaded.
Package             Arch   Version         Repository      Size
Installing:
 gcc                x86_64 16.1.1-1.fc44   updates    120.8 MiB
 gcc-c++            x86_64 16.1.1-1.fc44   updates     46.3 MiB
 ruby-devel         x86_64 4.0.1-32.fc44   fedora       1.6 MiB
 ruby-libs          x86_64 4.0.1-32.fc44   fedora      15.4 MiB
 rubygems-devel     noarch 4.0.3-32.fc44   fedora      13.4 KiB
Installing dependencies:
 annobin-docs       noarch 13.14-1.fc44    updates     99.3 KiB
 annobin-plugin-gcc x86_64 13.14-1.fc44    updates    699.3 KiB
 cpp                x86_64 16.1.1-1.fc44   updates     42.1 MiB
 gcc-plugin-annobin x86_64 16.1.1-1.fc44   updates     57.1 KiB
 glibc-devel        x86_64 2.43-4.fc44     updates      2.3 MiB
 kernel-headers     x86_64 6.19.6-300.fc44 fedora       6.9 MiB
 libatomic          x86_64 16.1.1-1.fc44   updates     45.5 KiB
 libmpc             x86_64 1.4.1-1.fc44    updates    168.7 KiB
 libstdc++-devel    x86_64 16.1.1-1.fc44   updates     41.2 MiB
 libxcrypt-devel    x86_64 4.5.2-3.fc44    fedora      31.0 KiB
 libyaml            x86_64 0.2.5-18.fc44   fedora     138.5 KiB
 make               x86_64 1:4.4.1-12.fc44 fedora       1.8 MiB
 ruby               x86_64 4.0.1-32.fc44   fedora      97.9 KiB
 ruby-bundled-gems  x86_64 4.0.1-32.fc44   fedora       2.6 MiB
 ruby-default-gems  noarch 4.0.1-32.fc44   fedora      64.2 KiB
 rubygem-io-console x86_64 0.8.2-32.fc44   fedora      33.3 KiB
 rubygem-irb        noarch 1.16.0-32.fc44  fedora     342.3 KiB
 rubygem-json       x86_64 2.19.4-1.fc44   updates    252.0 KiB
 rubygem-psych      x86_64 5.3.1-32.fc44   fedora     142.9 KiB
 rubygem-rbs        x86_64 3.10.0-32.fc44  fedora       5.8 MiB
 rubygem-rdoc       noarch 7.0.3-201.fc44  fedora       2.1 MiB
 rubygems           noarch 4.0.6-1.fc44    fedora       1.8 MiB
 rubypick           noarch 1.1.1-24.fc44   fedora       4.4 KiB

Transaction Summary:
 Installing:        28 packages

Total size of inbound packages is 92 MiB. Need to download 92 MiB.
After this operation, 293 MiB extra will be used (install 293 MiB, remove 0 B).
[ 1/28] rubygems-devel-0:4.0.3-32.fc44. 100% | 169.9 KiB/s |  14.9 KiB |  00m00s
[ 2/28] ruby-libs-0:4.0.1-32.fc44.x86_6 100% |  22.2 MiB/s |   4.4 MiB |  00m00s
[ 3/28] ruby-devel-0:4.0.1-32.fc44.x86_ 100% |  14.6 MiB/s | 329.8 KiB |  00m00s
[ 4/28] rubygem-rdoc-0:7.0.3-201.fc44.n 100% |  21.8 MiB/s | 535.9 KiB |  00m00s
[ 5/28] rubygems-0:4.0.6-1.fc44.noarch  100% |  19.0 MiB/s | 468.0 KiB |  00m00s
[ 6/28] rubypick-0:1.1.1-24.fc44.noarch 100% | 475.7 KiB/s |  10.0 KiB |  00m00s
[ 7/28] make-1:4.4.1-12.fc44.x86_64     100% |  25.0 MiB/s | 588.7 KiB |  00m00s
[ 8/28] gcc-c++-0:16.1.1-1.fc44.x86_64  100% |  36.5 MiB/s |  17.2 MiB |  00m00s
[ 9/28] ruby-0:4.0.1-32.fc44.x86_64     100% |   2.0 MiB/s |  43.2 KiB |  00m00s
[10/28] ruby-default-gems-0:4.0.1-32.fc 100% |   1.8 MiB/s |  39.2 KiB |  00m00s
[11/28] rubygem-io-console-0:0.8.2-32.f 100% |   1.2 MiB/s |  25.1 KiB |  00m00s
[12/28] rubygem-irb-0:1.16.0-32.fc44.no 100% |   5.6 MiB/s | 120.1 KiB |  00m00s
[13/28] gcc-0:16.1.1-1.fc44.x86_64      100% |  69.7 MiB/s |  43.0 MiB |  00m01s
[14/28] rubygem-psych-0:5.3.1-32.fc44.x 100% | 991.4 KiB/s |  59.5 KiB |  00m00s
[15/28] ruby-bundled-gems-0:4.0.1-32.fc 100% |  28.2 MiB/s | 721.4 KiB |  00m00s
[16/28] rubygem-rbs-0:3.10.0-32.fc44.x8 100% |  40.4 MiB/s |   1.1 MiB |  00m00s
[17/28] libmpc-0:1.4.1-1.fc44.x86_64    100% |   2.2 MiB/s |  75.5 KiB |  00m00s
[18/28] libyaml-0:0.2.5-18.fc44.x86_64  100% | 558.0 KiB/s |  63.0 KiB |  00m00s
[19/28] glibc-devel-0:2.43-4.fc44.x86_6 100% |  17.6 MiB/s | 614.3 KiB |  00m00s
[20/28] libxcrypt-devel-0:4.5.2-3.fc44. 100% |   1.5 MiB/s |  30.0 KiB |  00m00s
[21/28] libstdc++-devel-0:16.1.1-1.fc44 100% |  51.9 MiB/s |   6.0 MiB |  00m00s
[22/28] libatomic-0:16.1.1-1.fc44.x86_6 100% |   1.4 MiB/s |  49.4 KiB |  00m00s
[23/28] kernel-headers-0:6.19.6-300.fc4 100% |  57.7 MiB/s |   1.7 MiB |  00m00s
[24/28] rubygem-json-0:2.19.4-1.fc44.x8 100% |   2.1 MiB/s | 102.5 KiB |  00m00s
[25/28] gcc-plugin-annobin-0:16.1.1-1.f 100% |   1.6 MiB/s |  52.9 KiB |  00m00s
[26/28] annobin-plugin-gcc-0:13.14-1.fc 100% |  19.1 MiB/s | 684.4 KiB |  00m00s
[27/28] cpp-0:16.1.1-1.fc44.x86_64      100% |  27.8 MiB/s |  14.5 MiB |  00m01s
[28/28] annobin-docs-0:13.14-1.fc44.noa 100% |   2.1 MiB/s |  86.7 KiB |  00m00s
--------------------------------------------------------------------------------
[28/28] Total                           100% |  99.5 MiB/s |  92.4 MiB |  00m01s
Running transaction
[ 1/30] Verify package files            100% |  58.0   B/s |  28.0   B |  00m00s
[ 2/30] Prepare transaction             100% | 682.0   B/s |  28.0   B |  00m00s
[ 3/30] Installing ruby-libs-0:4.0.1-32 100% | 297.3 MiB/s |  15.5 MiB |  00m00s
[ 4/30] Installing libmpc-0:1.4.1-1.fc4 100% | 166.4 MiB/s | 170.4 KiB |  00m00s
[ 5/30] Installing ruby-0:4.0.1-32.fc44 100% |   6.9 MiB/s |  99.5 KiB |  00m00s
[ 6/30] Installing rubypick-0:1.1.1-24. 100% | 426.8 KiB/s |   5.1 KiB |  00m00s
[ 7/30] Installing cpp-0:16.1.1-1.fc44. 100% | 339.3 MiB/s |  42.1 MiB |  00m00s
[ 8/30] Installing annobin-docs-0:13.14 100% |  32.7 MiB/s | 100.5 KiB |  00m00s
[ 9/30] Installing kernel-headers-0:6.1 100% | 206.7 MiB/s |   7.0 MiB |  00m00s
[10/30] Installing glibc-devel-0:2.43-4 100% | 170.3 MiB/s |   2.4 MiB |  00m00s
[11/30] Installing libxcrypt-devel-0:4. 100% |  32.5 MiB/s |  33.3 KiB |  00m00s
[12/30] Installing libatomic-0:16.1.1-1 100% |  22.8 MiB/s |  46.7 KiB |  00m00s
[13/30] Installing libstdc++-devel-0:16 100% | 454.0 MiB/s |  41.3 MiB |  00m00s
[14/30] Installing libyaml-0:0.2.5-18.f 100% | 136.6 MiB/s | 139.9 KiB |  00m00s
[15/30] Installing rubygem-psych-0:5.3. 100% |  49.4 MiB/s | 151.8 KiB |  00m00s
[16/30] Installing rubygems-0:4.0.6-1.f 100% |  79.5 MiB/s |   1.8 MiB |  00m00s
[17/30] Installing ruby-default-gems-0: 100% |   5.5 MiB/s |  72.9 KiB |  00m00s
[18/30] Installing rubygem-io-console-0 100% |  34.8 MiB/s |  35.7 KiB |  00m00s
[19/30] Installing rubygem-json-0:2.19. 100% |  84.5 MiB/s | 259.5 KiB |  00m00s
[20/30] Installing rubygem-rdoc-0:7.0.3 100% |  95.5 MiB/s |   2.1 MiB |  00m00s
[21/30] Installing rubygem-irb-0:1.16.0 100% |  21.9 MiB/s | 359.3 KiB |  00m00s
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[23/30] Installing rubygem-rbs-0:3.10.0 100% | 151.7 MiB/s |   5.9 MiB |  00m00s
[24/30] Installing make-1:4.4.1-12.fc44 100% |  94.7 MiB/s |   1.8 MiB |  00m00s
[25/30] Installing gcc-0:16.1.1-1.fc44. 100% | 387.3 MiB/s | 120.9 MiB |  00m00s
[26/30] Installing gcc-c++-0:16.1.1-1.f 100% | 335.8 MiB/s |  46.3 MiB |  00m00s
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Complete!
Building target platforms: x86_64
Building for target x86_64
setting SOURCE_DATE_EPOCH=1778284800
Wrote: /builddir/build/SRPMS/rubygem-sassc-2.4.0-2.fc44.src.rpm
Updating and loading repositories:
 Additional repo https_copr_be_cloud_fe 100% |   3.5 KiB/s |   1.5 KiB |  00m00s
 Copr repository                        100% |   3.5 KiB/s |   1.5 KiB |  00m00s
 fedora                                 100% |  32.4 KiB/s |  27.6 KiB |  00m01s
 updates                                100% |  38.7 KiB/s |  27.5 KiB |  00m01s
Repositories loaded.
Nothing to do.
Package "gcc-c++-16.1.1-1.fc44.x86_64" is already installed.
Package "gcc-16.1.1-1.fc44.x86_64" is already installed.
Package "ruby-libs-4.0.1-32.fc44.x86_64" is already installed.
Package "ruby-devel-4.0.1-32.fc44.x86_64" is already installed.
Package "rubygems-devel-4.0.3-32.fc44.noarch" is already installed.

Finish: build setup for rubygem-sassc-2.4.0-2.fc44.src.rpm
Start: rpmbuild rubygem-sassc-2.4.0-2.fc44.src.rpm
Building target platforms: x86_64
Building for target x86_64
setting SOURCE_DATE_EPOCH=1778284800
Executing(%mkbuilddir): /bin/sh -e /var/tmp/rpm-tmp.veOVBM
Executing(%prep): /bin/sh -e /var/tmp/rpm-tmp.DGM9nK
+ umask 022
+ cd /builddir/build/BUILD/rubygem-sassc-2.4.0-build
+ cd /builddir/build/BUILD/rubygem-sassc-2.4.0-build
+ rm -rf sassc-2.4.0
+ /usr/lib/rpm/rpmuncompress -x /builddir/build/SOURCES/sassc-2.4.0.gem
Unpacked gem: '/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0'
+ STATUS=0
+ '[' 0 -ne 0 ']'
+ cd sassc-2.4.0
+ /usr/bin/chmod -Rf a+rX,u+w,g-w,o-w .
+ RPM_EC=0
++ jobs -p
+ exit 0
Executing(%build): /bin/sh -e /var/tmp/rpm-tmp.USPSYq
+ umask 022
+ cd /builddir/build/BUILD/rubygem-sassc-2.4.0-build
+ CFLAGS='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer  '
+ export CFLAGS
+ CXXFLAGS='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer  '
+ export CXXFLAGS
+ FFLAGS='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -I/usr/lib64/gfortran/modules  '
+ export FFLAGS
+ FCFLAGS='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -I/usr/lib64/gfortran/modules  '
+ export FCFLAGS
+ VALAFLAGS=-g
+ export VALAFLAGS
+ RUSTFLAGS='-Copt-level=3 -Cdebuginfo=2 -Ccodegen-units=1 -Cstrip=none -Cforce-frame-pointers=yes -Clink-arg=-specs=/usr/lib/rpm/redhat/redhat-package-notes --cap-lints=warn'
+ export RUSTFLAGS
+ LDFLAGS='-Wl,-z,relro -Wl,--as-needed  -Wl,-z,pack-relative-relocs -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -specs=/usr/lib/rpm/redhat/redhat-hardened-ld-errors -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -Wl,--build-id=sha1 -specs=/usr/lib/rpm/redhat/redhat-package-notes  '
+ export LDFLAGS
+ LT_SYS_LIBRARY_PATH=/usr/lib64:
+ export LT_SYS_LIBRARY_PATH
+ CC=gcc
+ export CC
+ CXX=g++
+ export CXX
+ cd sassc-2.4.0
+ gem build ../sassc-2.4.0.gemspec
WARNING:  expected RubyGems version 4.0.6, was 3.1.2
WARNING:  description and summary are identical
WARNING:  See https://guides.rubygems.org/specification-reference/ for help
  Successfully built RubyGem
  Name: sassc
  Version: 2.4.0
  File: sassc-2.4.0.gem
+ mkdir -p ./usr/share/gems
+ CONFIGURE_ARGS='--with-cflags='\''-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer'\'' --with-cxxflags='\''-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer'\'' --with-ldflags='\''-Wl,-z,relro -Wl,--as-needed  -Wl,-z,pack-relative-relocs -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -specs=/usr/lib/rpm/redhat/redhat-hardened-ld-errors -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -Wl,--build-id=sha1 -specs=/usr/lib/rpm/redhat/redhat-package-notes  '\'' '
+ gem install -V --local --build-root . --force --document=ri,rdoc sassc-2.4.0.gem
WARNING:  You build with buildroot.
  Build root: /builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0
  Bin dir: /builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/bin
  Gem home: /builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems
  Plugins dir: /builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/plugins
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/.gitignore
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/.gitmodules
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/.travis.yml
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/CHANGELOG.md
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/CODE_OF_CONDUCT.md
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/Gemfile
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/LICENSE.txt
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/README.md
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/Rakefile
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/depend
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/extconf.rb
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/VERSION
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/contrib/plugin.cpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/include/sass.h
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/include/sass/base.h
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/include/sass/context.h
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/include/sass/functions.h
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/include/sass/values.h
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/include/sass/version.h
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/include/sass2scss.h
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/MurmurHash2.hpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/ast.cpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/ast.hpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/ast2c.cpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/ast2c.hpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/ast_def_macros.hpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/ast_fwd_decl.cpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/ast_fwd_decl.hpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/ast_helpers.hpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/ast_sel_cmp.cpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/ast_sel_super.cpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/ast_sel_unify.cpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/ast_sel_weave.cpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/ast_selectors.cpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/ast_selectors.hpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/ast_supports.cpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/ast_supports.hpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/ast_values.cpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/ast_values.hpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/b64/cencode.h
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/b64/encode.h
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/backtrace.cpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/backtrace.hpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/base64vlq.cpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/base64vlq.hpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/bind.cpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/bind.hpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/c2ast.cpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/c2ast.hpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/c99func.c
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/cencode.c
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/check_nesting.cpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/check_nesting.hpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/color_maps.cpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/color_maps.hpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/constants.cpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/constants.hpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/context.cpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/context.hpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/cssize.cpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/cssize.hpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/dart_helpers.hpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/debug.hpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/debugger.hpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/emitter.cpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/emitter.hpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/environment.cpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/environment.hpp
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext/libsass/src/error_handling.cpp
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/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/lib/sassc/script/value_conversion/color.rb
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/lib/sassc/script/value_conversion/list.rb
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/lib/sassc/script/value_conversion/map.rb
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/lib/sassc/script/value_conversion/number.rb
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/lib/sassc/script/value_conversion/string.rb
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/lib/sassc/util.rb
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/lib/sassc/util/normalized_map.rb
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/lib/sassc/version.rb
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/sassc.gemspec
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/test/custom_importer_test.rb
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/test/engine_test.rb
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/test/error_test.rb
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/test/fixtures/paths.scss
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/test/functions_test.rb
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/test/native_test.rb
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/test/output_style_test.rb
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/test/sass_2_scss_test.rb
/builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/test/test_helper.rb
Building native extensions. This could take a while...
current directory: /builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext
["/usr/bin/ruby", "-I/usr/share/rubygems", "extconf.rb"]
creating Makefile
current directory: /builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext
["make", "-j5", "DESTDIR=", "sitearchdir=./.gem.20260509-52-56iohx", "sitelibdir=./.gem.20260509-52-56iohx", "clean"]
rm -f 
rm -fr libsass.so ast.o ast2c.o ast_fwd_decl.o ast_sel_cmp.o ast_sel_super.o ast_sel_unify.o ast_sel_weave.o ast_selectors.o ast_supports.o ast_values.o backtrace.o base64vlq.o bind.o c2ast.o c99func.o cencode.o check_nesting.o color_maps.o constants.o context.o cssize.o emitter.o environment.o error_handling.o eval.o eval_selectors.o expand.o extender.o extension.o file.o fn_colors.o fn_lists.o fn_maps.o fn_miscs.o fn_numbers.o fn_selectors.o fn_strings.o fn_utils.o inspect.o json.o lexer.o listize.o allocator.o shared_ptr.o operators.o output.o parser.o parser_selectors.o plugins.o position.o prelexer.o remove_placeholders.o sass.o sass2scss.o sass_context.o sass_functions.o sass_values.o source.o source_map.o stylesheet.o to_value.o units.o utf8_string.o util.o util_string.o values.o *.bak mkmf.log .*.time
current directory: /builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext
["make", "-j5", "DESTDIR=", "sitearchdir=./.gem.20260509-52-56iohx", "sitelibdir=./.gem.20260509-52-56iohx"]
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o ast.o -c ./libsass/src/ast.cpp
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o ast2c.o -c ./libsass/src/ast2c.cpp
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o ast_fwd_decl.o -c ./libsass/src/ast_fwd_decl.cpp
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o ast_sel_cmp.o -c ./libsass/src/ast_sel_cmp.cpp
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o ast_sel_super.o -c ./libsass/src/ast_sel_super.cpp
In file included from ./libsass/src/ast_selectors.hpp:7,
                 from ./libsass/src/ast_sel_cmp.cpp:5:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
In file included from ./libsass/src/ast_fwd_decl.cpp:1:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
In file included from ./libsass/src/ast.cpp:5:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
In file included from ./libsass/src/ast_sel_super.cpp:4:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
In file included from ./libsass/src/ast2c.cpp:6:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/operation.hpp:15,
                 from ./libsass/src/ast2c.hpp:5,
                 from ./libsass/src/ast2c.cpp:5:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o ast_sel_unify.o -c ./libsass/src/ast_sel_unify.cpp
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o ast_sel_weave.o -c ./libsass/src/ast_sel_weave.cpp
In file included from ./libsass/src/ast_sel_unify.cpp:5:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast_sel_weave.cpp:5:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o ast_selectors.o -c ./libsass/src/ast_selectors.cpp
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast_selectors.cpp:5:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o ast_supports.o -c ./libsass/src/ast_supports.cpp
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast_supports.cpp:4:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o ast_values.o -c ./libsass/src/ast_values.cpp
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast_values.cpp:4:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_values.cpp: In member function ‘virtual size_t Sass::Number::hash() const’:
./libsass/src/ast_values.cpp:484:23: warning: loop variable ‘numerator’ creates a copy from type ‘const std::__cxx11::basic_string<char>’ [-Wrange-loop-construct]
  484 |       for (const auto numerator : numerators)
      |                       ^~~~~~~~~
./libsass/src/ast_values.cpp:484:23: note: use reference type to prevent copying
  484 |       for (const auto numerator : numerators)
      |                       ^~~~~~~~~
      |                       &
./libsass/src/ast_values.cpp:486:23: warning: loop variable ‘denominator’ creates a copy from type ‘const std::__cxx11::basic_string<char>’ [-Wrange-loop-construct]
  486 |       for (const auto denominator : denominators)
      |                       ^~~~~~~~~~~
./libsass/src/ast_values.cpp:486:23: note: use reference type to prevent copying
  486 |       for (const auto denominator : denominators)
      |                       ^~~~~~~~~~~
      |                       &
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o backtrace.o -c ./libsass/src/backtrace.cpp
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o base64vlq.o -c ./libsass/src/base64vlq.cpp
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o bind.o -c ./libsass/src/bind.cpp
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o c2ast.o -c ./libsass/src/c2ast.cpp
In file included from ./libsass/src/bind.cpp:3:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
In file included from ./libsass/src/c2ast.cpp:1:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/environment.hpp:11,
                 from ./libsass/src/bind.hpp:6,
                 from ./libsass/src/bind.cpp:2:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:18:
./libsass/src/operation.hpp:140:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::SupportsRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  140 |     T operator()(SupportsRule* x)         { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
In file included from ./libsass/src/expand.hpp:7,
                 from ./libsass/src/bind.cpp:6:
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:146:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Keyframe_Rule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  146 |     T operator()(Keyframe_Rule* x)          { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:150:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Import_Stub*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  150 |     T operator()(Import_Stub* x)            { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:137:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::StyleRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  137 |     T operator()(StyleRule* x)                { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:162:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Definition*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  162 |     T operator()(Definition* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:138:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Bubble*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  138 |     T operator()(Bubble* x)                 { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:143:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::CssMediaQuery*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  143 |     T operator()(CssMediaQuery* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:147:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Declaration*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  147 |     T operator()(Declaration* x)            { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:193:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Parameter*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  193 |     T operator()(Parameter* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:163:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Mixin_Call*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  163 |     T operator()(Mixin_Call* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:183:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::SupportsCondition*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  183 |     T operator()(SupportsCondition* x)     { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:168:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Function*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  168 |     T operator()(Function* x)               { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:144:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::AtRootRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  144 |     T operator()(AtRootRule* x)          { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:172:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Custom_Warning*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  172 |     T operator()(Custom_Warning* x)         { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:176:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Color*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  176 |     T operator()(Color* x)                  { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:160:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Content*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  160 |     T operator()(Content* x)                { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:141:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::MediaRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  141 |     T operator()(MediaRule* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:139:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Trace*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  139 |     T operator()(Trace* x)                  { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:142:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::CssMediaRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  142 |     T operator()(CssMediaRule* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:206:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::SelectorCombinator*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  206 |     T operator()(SelectorCombinator* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:145:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::AtRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  145 |     T operator()(AtRule* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:149:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Import*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  149 |     T operator()(Import* x)                 { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:194:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Parameters*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  194 |     T operator()(Parameters* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:134:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::AST_Node*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  134 |     T operator()(AST_Node* x)               { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:173:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Custom_Error*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  173 |     T operator()(Custom_Error* x)           { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:161:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::ExtendRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  161 |     T operator()(ExtendRule* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
gcc -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -DLIBSASS_VERSION='"3.6.4"' -m64 -o c99func.o -c ./libsass/src/c99func.c
gcc -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -DLIBSASS_VERSION='"3.6.4"' -m64 -o cencode.o -c ./libsass/src/cencode.c
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o check_nesting.o -c ./libsass/src/check_nesting.cpp
In file included from ./libsass/src/check_nesting.cpp:4:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o color_maps.o -c ./libsass/src/color_maps.cpp
In file included from ./libsass/src/color_maps.cpp:5:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o constants.o -c ./libsass/src/constants.cpp
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o context.o -c ./libsass/src/context.cpp
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o cssize.o -c ./libsass/src/cssize.cpp
In file included from ./libsass/src/context.cpp:4:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/cssize.hpp:4,
                 from ./libsass/src/cssize.cpp:9:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o emitter.o -c ./libsass/src/emitter.cpp
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:18:
./libsass/src/operation.hpp:144:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::AtRootRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  144 |     T operator()(AtRootRule* x)          { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
In file included from ./libsass/src/expand.hpp:7,
                 from ./libsass/src/context.cpp:17:
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:140:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::SupportsRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  140 |     T operator()(SupportsRule* x)         { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:183:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::SupportsCondition*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  183 |     T operator()(SupportsCondition* x)     { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:146:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Keyframe_Rule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  146 |     T operator()(Keyframe_Rule* x)          { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:163:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Mixin_Call*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  163 |     T operator()(Mixin_Call* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:168:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Function*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  168 |     T operator()(Function* x)               { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:172:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Custom_Warning*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  172 |     T operator()(Custom_Warning* x)         { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:206:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::SelectorCombinator*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  206 |     T operator()(SelectorCombinator* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:137:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::StyleRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  137 |     T operator()(StyleRule* x)                { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:141:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::MediaRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  141 |     T operator()(MediaRule* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:176:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Color*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  176 |     T operator()(Color* x)                  { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:139:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Trace*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  139 |     T operator()(Trace* x)                  { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:193:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Parameter*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  193 |     T operator()(Parameter* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:173:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Custom_Error*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  173 |     T operator()(Custom_Error* x)           { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:150:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Import_Stub*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  150 |     T operator()(Import_Stub* x)            { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:138:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Bubble*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  138 |     T operator()(Bubble* x)                 { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:194:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Parameters*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  194 |     T operator()(Parameters* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:160:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Content*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  160 |     T operator()(Content* x)                { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:162:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Definition*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  162 |     T operator()(Definition* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:145:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::AtRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  145 |     T operator()(AtRule* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:161:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::ExtendRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  161 |     T operator()(ExtendRule* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:147:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Declaration*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  147 |     T operator()(Declaration* x)            { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:143:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::CssMediaQuery*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  143 |     T operator()(CssMediaQuery* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:134:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::AST_Node*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  134 |     T operator()(AST_Node* x)               { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:149:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Import*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  149 |     T operator()(Import* x)                 { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:142:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::CssMediaRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  142 |     T operator()(CssMediaRule* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o environment.o -c ./libsass/src/environment.cpp
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o error_handling.o -c ./libsass/src/error_handling.cpp
In file included from ./libsass/src/environment.cpp:2:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/error_handling.cpp:5:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o eval.o -c ./libsass/src/eval.cpp
In file included from ./libsass/src/eval.hpp:7,
                 from ./libsass/src/eval.cpp:13:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:18:
./libsass/src/operation.hpp:168:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Function*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  168 |     T operator()(Function* x)               { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:137:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::StyleRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  137 |     T operator()(StyleRule* x)                { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:141:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::MediaRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  141 |     T operator()(MediaRule* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:172:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Custom_Warning*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  172 |     T operator()(Custom_Warning* x)         { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:176:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Color*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  176 |     T operator()(Color* x)                  { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:160:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Content*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  160 |     T operator()(Content* x)                { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:193:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Parameter*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  193 |     T operator()(Parameter* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:143:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::CssMediaQuery*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  143 |     T operator()(CssMediaQuery* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:138:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Bubble*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  138 |     T operator()(Bubble* x)                 { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:173:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Custom_Error*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  173 |     T operator()(Custom_Error* x)           { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:147:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Declaration*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  147 |     T operator()(Declaration* x)            { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:161:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::ExtendRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  161 |     T operator()(ExtendRule* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:194:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Parameters*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  194 |     T operator()(Parameters* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:140:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::SupportsRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  140 |     T operator()(SupportsRule* x)         { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:142:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::CssMediaRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  142 |     T operator()(CssMediaRule* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:134:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::AST_Node*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  134 |     T operator()(AST_Node* x)               { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:144:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::AtRootRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  144 |     T operator()(AtRootRule* x)          { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:146:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Keyframe_Rule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  146 |     T operator()(Keyframe_Rule* x)          { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:150:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Import_Stub*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  150 |     T operator()(Import_Stub* x)            { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:162:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Definition*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  162 |     T operator()(Definition* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:206:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::SelectorCombinator*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  206 |     T operator()(SelectorCombinator* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:145:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::AtRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  145 |     T operator()(AtRule* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:139:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Trace*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  139 |     T operator()(Trace* x)                  { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:183:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::SupportsCondition*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  183 |     T operator()(SupportsCondition* x)     { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:149:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Import*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  149 |     T operator()(Import* x)                 { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:163:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Mixin_Call*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  163 |     T operator()(Mixin_Call* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o eval_selectors.o -c ./libsass/src/eval_selectors.cpp
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o expand.o -c ./libsass/src/expand.cpp
In file included from ./libsass/src/expand.hpp:6,
                 from ./libsass/src/eval_selectors.cpp:4:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:18:
./libsass/src/operation.hpp:163:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Mixin_Call*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  163 |     T operator()(Mixin_Call* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
In file included from ./libsass/src/expand.hpp:7:
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:168:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Function*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  168 |     T operator()(Function* x)               { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:172:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Custom_Warning*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  172 |     T operator()(Custom_Warning* x)         { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:176:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Color*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  176 |     T operator()(Color* x)                  { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:137:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::StyleRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  137 |     T operator()(StyleRule* x)                { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:143:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::CssMediaQuery*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  143 |     T operator()(CssMediaQuery* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:193:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Parameter*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  193 |     T operator()(Parameter* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:206:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::SelectorCombinator*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  206 |     T operator()(SelectorCombinator* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:160:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Content*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  160 |     T operator()(Content* x)                { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:173:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Custom_Error*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  173 |     T operator()(Custom_Error* x)           { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:141:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::MediaRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  141 |     T operator()(MediaRule* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:145:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::AtRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  145 |     T operator()(AtRule* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:149:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Import*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  149 |     T operator()(Import* x)                 { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:194:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Parameters*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  194 |     T operator()(Parameters* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:161:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::ExtendRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  161 |     T operator()(ExtendRule* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:146:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Keyframe_Rule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  146 |     T operator()(Keyframe_Rule* x)          { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:150:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Import_Stub*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  150 |     T operator()(Import_Stub* x)            { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:134:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::AST_Node*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  134 |     T operator()(AST_Node* x)               { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:140:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::SupportsRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  140 |     T operator()(SupportsRule* x)         { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:142:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::CssMediaRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  142 |     T operator()(CssMediaRule* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:144:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::AtRootRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  144 |     T operator()(AtRootRule* x)          { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:162:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Definition*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  162 |     T operator()(Definition* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:139:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Trace*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  139 |     T operator()(Trace* x)                  { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:183:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::SupportsCondition*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  183 |     T operator()(SupportsCondition* x)     { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:147:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Declaration*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  147 |     T operator()(Declaration* x)            { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:138:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Bubble*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  138 |     T operator()(Bubble* x)                 { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
In file included from ./libsass/src/expand.cpp:8:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:18:
./libsass/src/operation.hpp:183:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::SupportsCondition*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  183 |     T operator()(SupportsCondition* x)     { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
In file included from ./libsass/src/expand.hpp:7,
                 from ./libsass/src/expand.cpp:9:
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:139:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Trace*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  139 |     T operator()(Trace* x)                  { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:143:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::CssMediaQuery*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  143 |     T operator()(CssMediaQuery* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:147:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Declaration*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  147 |     T operator()(Declaration* x)            { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:138:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Bubble*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  138 |     T operator()(Bubble* x)                 { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:163:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Mixin_Call*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  163 |     T operator()(Mixin_Call* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:168:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Function*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  168 |     T operator()(Function* x)               { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:137:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::StyleRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  137 |     T operator()(StyleRule* x)                { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:172:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Custom_Warning*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  172 |     T operator()(Custom_Warning* x)         { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:176:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Color*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  176 |     T operator()(Color* x)                  { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:140:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::SupportsRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  140 |     T operator()(SupportsRule* x)         { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:144:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::AtRootRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  144 |     T operator()(AtRootRule* x)          { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:141:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::MediaRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  141 |     T operator()(MediaRule* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:193:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Parameter*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  193 |     T operator()(Parameter* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:160:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Content*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  160 |     T operator()(Content* x)                { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:173:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Custom_Error*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  173 |     T operator()(Custom_Error* x)           { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:145:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::AtRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  145 |     T operator()(AtRule* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:149:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Import*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  149 |     T operator()(Import* x)                 { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:206:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::SelectorCombinator*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  206 |     T operator()(SelectorCombinator* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:194:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Parameters*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  194 |     T operator()(Parameters* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:161:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::ExtendRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  161 |     T operator()(ExtendRule* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:134:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::AST_Node*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  134 |     T operator()(AST_Node* x)               { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:142:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::CssMediaRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  142 |     T operator()(CssMediaRule* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:146:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Keyframe_Rule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  146 |     T operator()(Keyframe_Rule* x)          { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:150:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Import_Stub*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  150 |     T operator()(Import_Stub* x)            { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:162:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Definition*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  162 |     T operator()(Definition* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o extender.o -c ./libsass/src/extender.cpp
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o extension.o -c ./libsass/src/extension.cpp
In file included from ./libsass/src/extender.cpp:4:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/extension.cpp:7:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o file.o -c ./libsass/src/file.cpp
In file included from ./libsass/src/context.hpp:7,
                 from ./libsass/src/file.cpp:21:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o fn_colors.o -c ./libsass/src/fn_colors.cpp
In file included from ./libsass/src/fn_colors.cpp:6:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o fn_lists.o -c ./libsass/src/fn_lists.cpp
In file included from ./libsass/src/values.hpp:4,
                 from ./libsass/src/operators.hpp:4,
                 from ./libsass/src/fn_lists.cpp:6:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/operation.hpp:15,
                 from ./libsass/src/listize.hpp:9,
                 from ./libsass/src/fn_lists.cpp:5:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o fn_maps.o -c ./libsass/src/fn_maps.cpp
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o fn_miscs.o -c ./libsass/src/fn_miscs.cpp
In file included from ./libsass/src/values.hpp:4,
                 from ./libsass/src/operators.hpp:4,
                 from ./libsass/src/fn_maps.cpp:1:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/fn_miscs.cpp:1:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:18:
./libsass/src/operation.hpp:194:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Parameters*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  194 |     T operator()(Parameters* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
In file included from ./libsass/src/expand.hpp:7,
                 from ./libsass/src/fn_miscs.cpp:2:
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:134:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::AST_Node*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  134 |     T operator()(AST_Node* x)               { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:138:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Bubble*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  138 |     T operator()(Bubble* x)                 { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:142:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::CssMediaRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  142 |     T operator()(CssMediaRule* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:146:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Keyframe_Rule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  146 |     T operator()(Keyframe_Rule* x)          { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:150:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Import_Stub*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  150 |     T operator()(Import_Stub* x)            { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:168:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Function*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  168 |     T operator()(Function* x)               { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:137:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::StyleRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  137 |     T operator()(StyleRule* x)                { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:162:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Definition*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  162 |     T operator()(Definition* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:183:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::SupportsCondition*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  183 |     T operator()(SupportsCondition* x)     { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:139:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Trace*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  139 |     T operator()(Trace* x)                  { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:143:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::CssMediaQuery*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  143 |     T operator()(CssMediaQuery* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:147:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Declaration*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  147 |     T operator()(Declaration* x)            { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:163:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Mixin_Call*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  163 |     T operator()(Mixin_Call* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:172:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Custom_Warning*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  172 |     T operator()(Custom_Warning* x)         { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:176:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Color*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  176 |     T operator()(Color* x)                  { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:140:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::SupportsRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  140 |     T operator()(SupportsRule* x)         { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:144:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::AtRootRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  144 |     T operator()(AtRootRule* x)          { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:160:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Content*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  160 |     T operator()(Content* x)                { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:161:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::ExtendRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  161 |     T operator()(ExtendRule* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:193:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Parameter*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  193 |     T operator()(Parameter* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:173:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Custom_Error*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  173 |     T operator()(Custom_Error* x)           { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:141:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::MediaRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  141 |     T operator()(MediaRule* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:145:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::AtRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  145 |     T operator()(AtRule* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:149:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Import*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  149 |     T operator()(Import* x)                 { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:206:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::SelectorCombinator*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  206 |     T operator()(SelectorCombinator* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o fn_numbers.o -c ./libsass/src/fn_numbers.cpp
In file included from ./libsass/src/fn_numbers.cpp:13:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o fn_selectors.o -c ./libsass/src/fn_selectors.cpp
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/parser.hpp:11,
                 from ./libsass/src/fn_selectors.cpp:3:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o fn_strings.o -c ./libsass/src/fn_strings.cpp
In file included from ./libsass/src/fn_strings.cpp:6:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o fn_utils.o -c ./libsass/src/fn_utils.cpp
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o inspect.o -c ./libsass/src/inspect.cpp
In file included from ./libsass/src/parser.hpp:11,
                 from ./libsass/src/fn_utils.cpp:5:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o json.o -c ./libsass/src/json.cpp
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/inspect.cpp:12:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o lexer.o -c ./libsass/src/lexer.cpp
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o listize.o -c ./libsass/src/listize.cpp
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o allocator.o -c ./libsass/src/memory/allocator.cpp
In file included from ./libsass/src/context.hpp:7,
                 from ./libsass/src/listize.cpp:10:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/operation.hpp:15,
                 from ./libsass/src/listize.hpp:9,
                 from ./libsass/src/listize.cpp:9:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o shared_ptr.o -c ./libsass/src/memory/shared_ptr.cpp
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o operators.o -c ./libsass/src/operators.cpp
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o output.o -c ./libsass/src/output.cpp
In file included from ./libsass/src/values.hpp:4,
                 from ./libsass/src/operators.hpp:4,
                 from ./libsass/src/operators.cpp:6:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o parser.o -c ./libsass/src/parser.cpp
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o parser_selectors.o -c ./libsass/src/parser_selectors.cpp
In file included from ./libsass/src/output.cpp:5:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/parser.hpp:11,
                 from ./libsass/src/parser_selectors.cpp:5:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
In file included from ./libsass/src/parser.hpp:11,
                 from ./libsass/src/parser.cpp:5:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o plugins.o -c ./libsass/src/plugins.cpp
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o position.o -c ./libsass/src/position.cpp
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o prelexer.o -c ./libsass/src/prelexer.cpp
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o remove_placeholders.o -c ./libsass/src/remove_placeholders.cpp
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o sass.o -c ./libsass/src/sass.cpp
In file included from ./libsass/src/remove_placeholders.cpp:4:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
In file included from ./libsass/src/context.hpp:7,
                 from ./libsass/src/sass.cpp:13:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o sass2scss.o -c ./libsass/src/sass2scss.cpp
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o sass_context.o -c ./libsass/src/sass_context.cpp
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o sass_functions.o -c ./libsass/src/sass_functions.cpp
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o sass_values.o -c ./libsass/src/sass_values.cpp
In file included from ./libsass/src/context.hpp:7,
                 from ./libsass/src/sass_functions.cpp:7:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
In file included from ./libsass/src/sass_context.cpp:4:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/eval.hpp:7,
                 from ./libsass/src/sass_values.cpp:8:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:18:
./libsass/src/operation.hpp:193:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Parameter*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  193 |     T operator()(Parameter* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:206:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::SelectorCombinator*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  206 |     T operator()(SelectorCombinator* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:160:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Content*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  160 |     T operator()(Content* x)                { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:173:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Custom_Error*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  173 |     T operator()(Custom_Error* x)           { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:141:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::MediaRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  141 |     T operator()(MediaRule* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:145:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::AtRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  145 |     T operator()(AtRule* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:149:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Import*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  149 |     T operator()(Import* x)                 { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:142:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::CssMediaRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  142 |     T operator()(CssMediaRule* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:194:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Parameters*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  194 |     T operator()(Parameters* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:134:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::AST_Node*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  134 |     T operator()(AST_Node* x)               { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:138:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Bubble*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  138 |     T operator()(Bubble* x)                 { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:161:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::ExtendRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  161 |     T operator()(ExtendRule* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:144:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::AtRootRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  144 |     T operator()(AtRootRule* x)          { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:146:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Keyframe_Rule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  146 |     T operator()(Keyframe_Rule* x)          { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:150:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Import_Stub*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  150 |     T operator()(Import_Stub* x)            { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:137:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::StyleRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  137 |     T operator()(StyleRule* x)                { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:162:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Definition*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  162 |     T operator()(Definition* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:183:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::SupportsCondition*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  183 |     T operator()(SupportsCondition* x)     { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:147:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Declaration*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  147 |     T operator()(Declaration* x)            { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:140:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::SupportsRule*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  140 |     T operator()(SupportsRule* x)         { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:139:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Trace*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  139 |     T operator()(Trace* x)                  { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:163:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Mixin_Call*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  163 |     T operator()(Mixin_Call* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:168:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Function*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  168 |     T operator()(Function* x)               { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:172:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Custom_Warning*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  172 |     T operator()(Custom_Warning* x)         { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:143:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::CssMediaQuery*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  143 |     T operator()(CssMediaQuery* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
./libsass/src/operation.hpp:176:7: warning: ‘T Sass::Operation_CRTP<T, D>::operator()(Sass::Color*) [with T = Sass::Expression*; D = Sass::Eval]’ was hidden [-Woverloaded-virtual=]
  176 |     T operator()(Color* x)                  { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
./libsass/src/eval.hpp:43:17: note:   by ‘virtual Sass::Expression* Sass::Eval::operator()(Sass::Block*)’
   43 |     Expression* operator()(Block*);
      |                 ^~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o source.o -c ./libsass/src/source.cpp
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o source_map.o -c ./libsass/src/source_map.cpp
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o stylesheet.o -c ./libsass/src/stylesheet.cpp
In file included from ./libsass/src/source_map.cpp:10:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o to_value.o -c ./libsass/src/to_value.cpp
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o units.o -c ./libsass/src/units.cpp
In file included from ./libsass/src/to_value.cpp:5:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o utf8_string.o -c ./libsass/src/utf8_string.cpp
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o util.o -c ./libsass/src/util.cpp
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o util_string.o -c ./libsass/src/util_string.cpp
In file included from ./libsass/src/util.cpp:3:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
g++ -I. -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -I./libsass/include   -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wno-complain-wrong-lang -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -std=c++11 -DLIBSASS_VERSION='"3.6.4"' -m64 -o values.o -c ./libsass/src/values.cpp
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/values.hpp:4,
                 from ./libsass/src/values.cpp:6:
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: note:   by ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:167:17: note:   by ‘bool Sass::Expression::operator!=(const Sass::Expression&) const’
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:908:10: note:   by ‘bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const’
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:911:10: note:   by ‘bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const’
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:90:18: warning: ‘virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:939:10: note:   by ‘bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const’
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:940:10: note:   by ‘bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const’
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:1053:
./libsass/src/ast_values.hpp:38:18: note:   by ‘virtual bool Sass::Value::operator!=(const Sass::Expression&) const’
   38 |     virtual bool operator!= (const Expression& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast.hpp:165:18: warning: ‘virtual bool Sass::Expression::operator==(const Sass::Expression&) const’ was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ./libsass/src/ast.hpp:14:
./libsass/src/ast_def_macros.hpp:105:16: note:   by ‘virtual bool Sass::Selector::operator==(const Sass::Selector&) const’
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast.hpp:96:18: warning: ‘virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const’ was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./libsass/src/ast.hpp:1055:
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:156:10: note:   by ‘virtual bool Sass::PlaceholderSelector::operator==(const Sass::SimpleSelector&) const’
  156 |     bool operator==(const SimpleSelector& rhs) const override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:157:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:173:10: note:   by ‘virtual bool Sass::TypeSelector::operator==(const Sass::SimpleSelector&) const’
  173 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:174:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:187:10: note:   by ‘virtual bool Sass::ClassSelector::operator==(const Sass::SimpleSelector&) const’
  187 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:188:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:203:10: note:   by ‘virtual bool Sass::IDSelector::operator==(const Sass::SimpleSelector&) const’
  203 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:204:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:222:10: note:   by ‘virtual bool Sass::AttributeSelector::operator==(const Sass::SimpleSelector&) const’
  222 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:223:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_selectors.hpp:136:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const’ was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:133:10: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:137:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const’ was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_selectors.hpp:135:18: warning: ‘virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const’ was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
./libsass/src/ast_selectors.hpp:261:10: note:   by ‘virtual bool Sass::PseudoSelector::operator==(const Sass::SimpleSelector&) const’
  261 |     bool operator==(const SimpleSelector& rhs) const final override;
      |          ^~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:139:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:262:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:309:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  309 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: note:   by ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:406:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  406 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:348:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
  348 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:458:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  458 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:106:16: warning: ‘virtual bool Sass::Selector::operator!=(const Sass::Selector&) const’ was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:56:5: note: in expansion of macro ‘ATTACH_VIRTUAL_CMP_OPERATIONS’
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
./libsass/src/ast_def_macros.hpp:110:16: note:   by ‘virtual bool Sass::SelectorList::operator!=(const Sass::SelectorList&) const’
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
./libsass/src/ast_selectors.hpp:500:5: note: in expansion of macro ‘ATTACH_CMP_OPERATIONS’
  500 |     ATTACH_CMP_OPERATIONS(SelectorList)
      |     ^~~~~~~~~~~~~~~~~~~~~
rm -f libsass.so
g++ -shared -o libsass.so ast.o ast2c.o ast_fwd_decl.o ast_sel_cmp.o ast_sel_super.o ast_sel_unify.o ast_sel_weave.o ast_selectors.o ast_supports.o ast_values.o backtrace.o base64vlq.o bind.o c2ast.o c99func.o cencode.o check_nesting.o color_maps.o constants.o context.o cssize.o emitter.o environment.o error_handling.o eval.o eval_selectors.o expand.o extender.o extension.o file.o fn_colors.o fn_lists.o fn_maps.o fn_miscs.o fn_numbers.o fn_selectors.o fn_strings.o fn_utils.o inspect.o json.o lexer.o listize.o allocator.o shared_ptr.o operators.o output.o parser.o parser_selectors.o plugins.o position.o prelexer.o remove_placeholders.o sass.o sass2scss.o sass_context.o sass_functions.o sass_values.o source.o source_map.o stylesheet.o to_value.o units.o utf8_string.o util.o util_string.o values.o -L. -L/usr/lib64 -Wl,-z,relro -Wl,--as-needed  -Wl,-z,pack-relative-relocs -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -specs=/usr/lib/rpm/redhat/redhat-hardened-ld-errors -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -Wl,--build-id=sha1 -specs=/usr/lib/rpm/redhat/redhat-package-notes   -Wl,-z,relro -Wl,--as-needed  -Wl,-z,pack-relative-relocs -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -specs=/usr/lib/rpm/redhat/redhat-hardened-ld-errors -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -Wl,--build-id=sha1     -m64  -lm -lpthread  -lc
:
strip -x libsass.so
current directory: /builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext
["make", "-j5", "DESTDIR=", "sitearchdir=./.gem.20260509-52-56iohx", "sitelibdir=./.gem.20260509-52-56iohx", "install"]
/usr/bin/mkdir -p . ./.gem.20260509-52-56iohx/sassc
exit > .sitearchdir.-.sassc.time
/usr/bin/install -c -m 0755 libsass.so ./.gem.20260509-52-56iohx/sassc
current directory: /builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext
["make", "DESTDIR=", "sitearchdir=./.gem.20260509-52-56iohx", "sitelibdir=./.gem.20260509-52-56iohx", "clean"]
rm -f 
rm -fr libsass.so ast.o ast2c.o ast_fwd_decl.o ast_sel_cmp.o ast_sel_super.o ast_sel_unify.o ast_sel_weave.o ast_selectors.o ast_supports.o ast_values.o backtrace.o base64vlq.o bind.o c2ast.o c99func.o cencode.o check_nesting.o color_maps.o constants.o context.o cssize.o emitter.o environment.o error_handling.o eval.o eval_selectors.o expand.o extender.o extension.o file.o fn_colors.o fn_lists.o fn_maps.o fn_miscs.o fn_numbers.o fn_selectors.o fn_strings.o fn_utils.o inspect.o json.o lexer.o listize.o allocator.o shared_ptr.o operators.o output.o parser.o parser_selectors.o plugins.o position.o prelexer.o remove_placeholders.o sass.o sass2scss.o sass_context.o sass_functions.o sass_values.o source.o source_map.o stylesheet.o to_value.o units.o utf8_string.o util.o util_string.o values.o *.bak mkmf.log .*.time
current directory: /builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext
/usr/bin/ruby -I/usr/share/rubygems extconf.rb
current directory: /builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext
make -j5 DESTDIR\= sitearchdir\=./.gem.20260509-52-56iohx sitelibdir\=./.gem.20260509-52-56iohx clean
current directory: /builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext
make -j5 DESTDIR\= sitearchdir\=./.gem.20260509-52-56iohx sitelibdir\=./.gem.20260509-52-56iohx
current directory: /builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext
make -j5 DESTDIR\= sitearchdir\=./.gem.20260509-52-56iohx sitelibdir\=./.gem.20260509-52-56iohx install
current directory: /builddir/build/BUILD/rubygem-sassc-2.4.0-build/sassc-2.4.0/usr/share/gems/gems/sassc-2.4.0/ext
make DESTDIR\= sitearchdir\=./.gem.20260509-52-56iohx sitelibdir\=./.gem.20260509-52-56iohx clean
Successfully installed sassc-2.4.0
Parsing documentation for sassc-2.4.0
Parsing sources...
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Installing ri documentation for sassc-2.4.0
Installing aliki documentation for sassc-2.4.0
Done installing documentation for sassc after 1 seconds
1 gem installed
+ RPM_EC=0
++ jobs -p
+ exit 0
Executing(%install): /bin/sh -e /var/tmp/rpm-tmp.T3Npi4
+ umask 022
+ cd /builddir/build/BUILD/rubygem-sassc-2.4.0-build
+ '[' /builddir/build/BUILD/rubygem-sassc-2.4.0-build/BUILDROOT '!=' / ']'
+ rm -rf /builddir/build/BUILD/rubygem-sassc-2.4.0-build/BUILDROOT
++ dirname /builddir/build/BUILD/rubygem-sassc-2.4.0-build/BUILDROOT
+ mkdir -p /builddir/build/BUILD/rubygem-sassc-2.4.0-build
+ mkdir /builddir/build/BUILD/rubygem-sassc-2.4.0-build/BUILDROOT
+ CFLAGS='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer  '
+ export CFLAGS
+ CXXFLAGS='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer  '
+ export CXXFLAGS
+ FFLAGS='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -I/usr/lib64/gfortran/modules  '
+ export FFLAGS
+ FCFLAGS='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -I/usr/lib64/gfortran/modules  '
+ export FCFLAGS
+ VALAFLAGS=-g
+ export VALAFLAGS
+ RUSTFLAGS='-Copt-level=3 -Cdebuginfo=2 -Ccodegen-units=1 -Cstrip=none -Cforce-frame-pointers=yes -Clink-arg=-specs=/usr/lib/rpm/redhat/redhat-package-notes --cap-lints=warn'
+ export RUSTFLAGS
+ LDFLAGS='-Wl,-z,relro -Wl,--as-needed  -Wl,-z,pack-relative-relocs -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -specs=/usr/lib/rpm/redhat/redhat-hardened-ld-errors -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -Wl,--build-id=sha1 -specs=/usr/lib/rpm/redhat/redhat-package-notes  '
+ export LDFLAGS
+ LT_SYS_LIBRARY_PATH=/usr/lib64:
+ export LT_SYS_LIBRARY_PATH
+ CC=gcc
+ export CC
+ CXX=g++
+ export CXX
+ cd sassc-2.4.0
+ mkdir -p /builddir/build/BUILD/rubygem-sassc-2.4.0-build/BUILDROOT/usr/share/gems
+ cp -a ./usr/share/gems/build_info ./usr/share/gems/cache ./usr/share/gems/doc ./usr/share/gems/extensions ./usr/share/gems/gems ./usr/share/gems/plugins ./usr/share/gems/specifications /builddir/build/BUILD/rubygem-sassc-2.4.0-build/BUILDROOT/usr/share/gems/
+ mkdir -p /builddir/build/BUILD/rubygem-sassc-2.4.0-build/BUILDROOT/usr/lib64/gems/ruby/sassc-2.4.0
+ cp -a ./usr/lib64/gems/ruby/sassc-2.4.0/gem.build_complete './usr/lib64/gems/ruby/sassc-2.4.0/*.so' /builddir/build/BUILD/rubygem-sassc-2.4.0-build/BUILDROOT/usr/lib64/gems/ruby/sassc-2.4.0/
cp: cannot stat './usr/lib64/gems/ruby/sassc-2.4.0/*.so': No such file or directory
error: Bad exit status from /var/tmp/rpm-tmp.T3Npi4 (%install)

RPM build errors:
    Bad exit status from /var/tmp/rpm-tmp.T3Npi4 (%install)
Finish: rpmbuild rubygem-sassc-2.4.0-2.fc44.src.rpm
Finish: build phase for rubygem-sassc-2.4.0-2.fc44.src.rpm
INFO: chroot_scan: 1 files copied to /var/lib/copr-rpmbuild/results/chroot_scan
INFO: /var/lib/mock/fedora-44-x86_64-1778363645.064641/root/var/log/dnf5.log
INFO: chroot_scan: creating tarball /var/lib/copr-rpmbuild/results/chroot_scan.tar.gz
/bin/tar: Removing leading `/' from member names
ERROR: Exception(/var/lib/copr-rpmbuild/results/rubygem-sassc-2.4.0-2.fc44.src.rpm) Config(fedora-44-x86_64) 1 minutes 24 seconds
INFO: Results and/or logs in: /var/lib/copr-rpmbuild/results
INFO: Cleaning up build root ('cleanup_on_failure=True')
Start: clean chroot
INFO: unmounting tmpfs.
Finish: clean chroot
ERROR: Command failed: 
 # /usr/bin/systemd-nspawn -q -M f7e87ff70c1a4a50ac692b9f2893ae79 -D /var/lib/mock/fedora-44-x86_64-1778363645.064641/root -a -u mockbuild --capability=cap_ipc_lock --capability=cap_ipc_lock --bind=/tmp/mock-resolv.s6nt7f9g:/etc/resolv.conf --bind=/dev/btrfs-control --bind=/dev/mapper/control --bind=/dev/fuse --bind=/dev/loop-control --bind=/dev/loop0 --bind=/dev/loop1 --bind=/dev/loop2 --bind=/dev/loop3 --bind=/dev/loop4 --bind=/dev/loop5 --bind=/dev/loop6 --bind=/dev/loop7 --bind=/dev/loop8 --bind=/dev/loop9 --bind=/dev/loop10 --bind=/dev/loop11 --console=pipe --setenv=TERM=vt100 --setenv=SHELL=/bin/bash --setenv=HOME=/builddir --setenv=HOSTNAME=mock --setenv=PATH=/usr/bin:/bin:/usr/sbin:/sbin '--setenv=PROMPT_COMMAND=printf "\033]0;<mock-chroot>\007"' '--setenv=PS1=<mock-chroot> \s-\v\$ ' --setenv=LANG=C.UTF-8 --resolv-conf=off bash --login -c '/usr/bin/rpmbuild -bb  --target x86_64 --nodeps /builddir/build/originals/rubygem-sassc.spec'

Copr build error: Build failed