%global _smp_mflags -v -j8

%global maj_ver 10
%global min_ver 0
%global patch_ver 0
%global baserelease 1

# Components enabled if supported by target architecture:
%define gold_arches %{ix86} x86_64 %{arm} aarch64 %{power64} s390x
%ifarch %{gold_arches}
  %bcond_without gold
%else
  %bcond_with gold
%endif

%define _prefix /usr/local/tools/llvm-%{maj_ver}
%define _pkgdocdir %{_docdir}/llvm
%global llvm_srcdir llvm-%{version}.src

Name:    llvm-%{maj_ver}
Version:  %{maj_ver}.%{min_ver}.%{patch_ver}
Release:  %{baserelease}%{?dist}
Summary:  The Low Level Virtual Machine

License:  NCSA
URL:    http://llvm.org
Source0:  https://github.com/llvm/llvm-project/releases/download/llvmorg-%{version}/%{llvm_srcdir}.tar.xz
Source1:  https://github.com/llvm/llvm-project/releases/download/llvmorg-%{version}/%{llvm_srcdir}.tar.xz.sig
Source2:  llvm-config.h

BuildRequires:  gcc
BuildRequires:  gcc-c++
BuildRequires:  cmake
BuildRequires:  ninja-build
BuildRequires:  zlib-devel
BuildRequires:  libffi-devel
BuildRequires:  ncurses-devel

# LLVM's LineEditor library will use libedit if it is available.
BuildRequires:  libedit-devel
# We need python3-devel for pathfix.py.
BuildRequires:  python3-devel

%if %{with gold}
BuildRequires:  binutils-devel
%endif

%if 0%{?epel} == 6
BuildRequires:  libstdc++
BuildRequires:  libstdc++-devel
%else
BuildRequires:  libstdc++-static
%endif

%if 0%{?fedora} >= 24
BuildRequires:  python3-sphinx
%else
BuildRequires:  python
%endif

Requires:  %{name}-libs%{?_isa} = %{version}-%{release}

Provides:  llvm(major) = %{maj_ver}

%description
LLVM is a compiler infrastructure designed for compile-time, link-time,
runtime, and idle-time optimization of programs from arbitrary programming
languages. The compiler infrastructure includes mirror sets of programming
tools as well as libraries with equivalent functionality.

%if 0%{?epel} == 7
%define  debug_package %{nil}
%endif

%package devel
Summary:  Libraries and header files for LLVM
Requires:  %{name}%{?_isa} = %{version}-%{release}
Requires:  %{name}-libs%{?_isa} = %{version}-%{release}
# The installed LLVM cmake files will add -ledit to the linker flags for any
# app that requires the libLLVMLineEditor, so we need to make sure
# libedit-devel is available.
Requires:  libedit-devel

Provides:  llvm-devel(major) = %{maj_ver}

%description devel
This package contains library and header files needed to develop new native
programs that use the LLVM infrastructure.

%package doc
Summary:  Documentation for LLVM
BuildArch:  noarch
Requires:  %{name} = %{version}-%{release}

%description doc
Documentation for the LLVM compiler infrastructure.

%package libs
Summary:  LLVM shared libraries

%description libs
Shared libraries for the LLVM compiler infrastructure.

%package static
Summary:  LLVM static libraries

%description static
Static libraries for the LLVM compiler infrastructure.

%prep
%setup -q -n %{llvm_srcdir}

%build
mkdir -p _build
cd _build

%ifarch s390 %{arm} %ix86
# Decrease debuginfo verbosity to reduce memory consumption during final library linking
%global optflags %(echo %{optflags} | sed 's/-g /-g1 /')
%endif

# force off shared libs as cmake macros turns it on.
cmake .. -G Ninja \
  -DBUILD_SHARED_LIBS:BOOL=OFF \
  -DLLVM_PARALLEL_LINK_JOBS=1 \
  -DCMAKE_BUILD_TYPE=RelWithDebInfo \
  -DCMAKE_SHARED_LINKER_FLAGS="-Wl,-Bsymbolic -static-libstdc++" \
%ifarch s390
  -DCMAKE_C_FLAGS_RELWITHDEBINFO="%{optflags} -DNDEBUG" \
  -DCMAKE_CXX_FLAGS_RELWITHDEBINFO="%{optflags} -DNDEBUG" \
%endif
%if 0%{?__isa_bits} == 64
  -DLLVM_LIBDIR_SUFFIX=64 \
%else
  -DLLVM_LIBDIR_SUFFIX= \
%endif
  \
  -DLLVM_TARGETS_TO_BUILD=all \
  -DLLVM_ENABLE_LIBCXX:BOOL=OFF \
  -DLLVM_ENABLE_ZLIB:BOOL=ON \
  -DLLVM_ENABLE_FFI:BOOL=ON \
  -DLLVM_ENABLE_RTTI:BOOL=ON \
  -DSPHINX_WARNINGS_AS_ERRORS:BOOL=OFF \
%if %{with gold}
  -DLLVM_BINUTILS_INCDIR=%{_includedir} \
%endif
  \
  -DLLVM_BUILD_RUNTIME:BOOL=ON \
  \
  -DLLVM_INCLUDE_TOOLS:BOOL=ON \
  -DLLVM_BUILD_TOOLS:BOOL=ON \
  \
  -DLLVM_INCLUDE_TESTS:BOOL=ON \
  -DLLVM_BUILD_TESTS:BOOL=ON \
  \
  -DLLVM_INCLUDE_EXAMPLES:BOOL=ON \
  -DLLVM_BUILD_EXAMPLES:BOOL=OFF \
  \
  -DLLVM_INCLUDE_UTILS:BOOL=ON \
  -DLLVM_INSTALL_UTILS:BOOL=OFF \
  \
  -DLLVM_INCLUDE_DOCS:BOOL=ON \
  -DLLVM_BUILD_DOCS:BOOL=ON \
%if 0%{?fedora} >= 24
  -DLLVM_ENABLE_SPHINX:BOOL=ON \
%endif
  -DLLVM_ENABLE_DOXYGEN:BOOL=OFF \
  \
  -DLLVM_BUILD_LLVM_DYLIB:BOOL=ON \
  -DLLVM_DYLIB_EXPORT_ALL:BOOL=ON \
  -DLLVM_LINK_LLVM_DYLIB:BOOL=ON \
  -DLLVM_BUILD_EXTERNAL_COMPILER_RT:BOOL=ON \
  -DLLVM_INSTALL_TOOLCHAIN_ONLY:BOOL=OFF \
  \
%if 0%{?fedora} >= 24
  -DSPHINX_EXECUTABLE=/usr/bin/sphinx-build-3
%endif
  \
  -DCMAKE_INSTALL_PREFIX=%{_prefix} \

# Build libLLVM.so first.  This ensures that when libLLVM.so is linking, there
# are no other compile jobs running.  This will help reduce OOM errors on the
# builders without having to artificially limit the number of concurrent jobs.
ninja-build %{?_smp_mflags} LLVM
ninja-build %{?_smp_mflags}

%install
DESTDIR=%{buildroot} ninja-build %{?_smp_mflags} install -C _build

# fix multi-lib
mv -v %{buildroot}%{_bindir}/llvm-config{,-%{__isa_bits}}
mv -v %{buildroot}%{_includedir}/llvm/Config/llvm-config{,-%{__isa_bits}}.h
install -m 0644 %{SOURCE2} %{buildroot}%{_includedir}/llvm/Config/llvm-config.h

# Fix for the removals of alternatives
ln -s llvm-config-%{__isa_bits} %{buildroot}%{_bindir}/llvm-config

mkdir -p %{buildroot}/etc/ld.so.conf.d
echo %{_libdir} > %{buildroot}/etc/ld.so.conf.d/%{name}.conf

%post libs -p /sbin/ldconfig

%postun libs -p /sbin/ldconfig

%files
%{_bindir}/*
%{_datadir}/opt-viewer
%if 0%{?fedora} >= 24
%{_mandir}/man1/*.1
%endif
%exclude %{_bindir}/llvm-config
%exclude %{_bindir}/llvm-config-%{__isa_bits}
%if 0%{?fedora} >= 24
%exclude %{_mandir}/man1/llvm-config.1
%endif

%files libs
%{_libdir}/libLLVM-%{maj_ver}*.so
%{_libdir}/libLTO.so*
%{_libdir}/libRemarks.so*
%if %{with gold}
%{_libdir}/LLVMgold.so
%endif
%config(noreplace) %{_sysconfdir}/ld.so.conf.d/%{name}.conf

%files devel
%{_bindir}/llvm-config
%{_bindir}/llvm-config-%{__isa_bits}
%if 0%{?fedora} >= 24
%{_mandir}/man1/llvm-config*
%endif
%{_includedir}/llvm
%{_includedir}/llvm-c
%{_libdir}/libLLVM.so
%{_libdir}/cmake/llvm

%files doc
%if 0%{?fedora} >= 24
%doc %{_pkgdocdir}/html
%endif

%files static
%{_libdir}/*.a

%changelog
* Tue Jul 21 2020 Evgeny Akhmetkhanov <axmetishe+llvm@gmail.com> - 10.0.0-1
- Initial spec for EL7 from FC33