%global compat_build 0
%global svnrel r350529
%global svnrel_clang_tools_extra r350529
%global svnrel_test_suite r350529

%global maj_ver 8
%global min_ver 0
%global patch_ver 0

%global clang_tools_binaries \
	%{_bindir}/clangd \
	%{_bindir}/clang-apply-replacements \
	%{_bindir}/clang-change-namespace \
	%{_bindir}/clang-include-fixer \
	%{_bindir}/clang-query \
	%{_bindir}/clang-refactor \
	%{_bindir}/clang-reorder-fields \
	%{_bindir}/clang-rename \
	%{_bindir}/clang-tidy

%global clang_binaries \
	%{_bindir}/clang \
	%{_bindir}/clang++ \
	%{_bindir}/clang-%{maj_ver} \
	%{_bindir}/clang++-%{maj_ver} \
	%{_bindir}/clang-check \
	%{_bindir}/clang-cl \
	%{_bindir}/clang-cpp \
	%{_bindir}/clang-format \
	%{_bindir}/clang-func-mapping \
	%{_bindir}/clang-import-test \
	%{_bindir}/clang-offload-bundler \
	%{_bindir}/diagtool \
	%{_bindir}/hmaptool

%if 0%{?compat_build}
%global pkg_name clang%{maj_ver}.%{min_ver}
# Install clang to same prefix as llvm, so that apps that use llvm-config
# will also be able to find clang libs.
%global install_prefix %{_libdir}/llvm%{maj_ver}.%{min_ver}
%global install_bindir %{install_prefix}/bin
%global install_includedir %{install_prefix}/include
%global install_libdir %{install_prefix}/lib

%global pkg_bindir %{install_bindir}
%global pkg_includedir %{_includedir}/llvm%{maj_ver}.%{min_ver}
%global pkg_libdir %{install_libdir}
%else
%global pkg_name clang
%endif

%if 0%{?fedora} || 0%{?rhel} > 7
%bcond_without python3
%else
%bcond_with python3
%endif

%global clang_srcdir %{name}-%{svnrel}
%global clang_tools_srcdir clang-tools-extra-%{svnrel_clang_tools_extra}
%global test_suite_srcdir test-suite-%{svnrel_test_suite}

Name:		%pkg_name
Version:	%{maj_ver}.%{min_ver}.%{patch_ver}
Release:	0.1.%{svnrel}%{?dist}
Summary:	A C language family front-end for LLVM

License:	NCSA
URL:		http://llvm.org
Source0:	http://llvm.org/releases/%{version}/%{clang_srcdir}.tar.xz
%if !0%{?compat_build}
Source1:	http://llvm.org/releases/%{version}/%{clang_tools_srcdir}.tar.xz

# The LLVM Test Suite contains progrms with "BAD" or unknown licenses which should
# be removed.  Some of the unknown licenses may be OK, but until they are reviewed,
# we will remove them.
# Use the pkg_test_suite.sh script to generate the test-suite tarball:
# wget http://llvm.org/releases/%%{version}/%%{test_suite_srcdir}.tar.xz
# ./pkg_test_suite.sh %%{test_suite_srcdir}.tar.xz
Source2:	http://llvm.org/releases/%{version}/%{test_suite_srcdir}.tar.xz
%endif

Source100:	clang-config.h

Patch0:		0001-lit.cfg-Add-hack-so-lit-can-find-not-and-FileCheck.patch
Patch1:		0001-GCC-compatibility-Ignore-fstack-clash-protection.patch
Patch2:		0001-Driver-Prefer-vendor-supplied-gcc-toolchain.patch
Patch4:		0001-gtest-reorg.patch
Patch5:		0001-Don-t-prefer-python2.7.patch
Patch6:		0001-Convert-clang-format-diff.py-to-python3-using-2to3.patch
Patch7:		0001-Convert-scan-view-to-python3-using-2to3.patch

BuildRequires:  gcc
BuildRequires:  gcc-c++
BuildRequires:	cmake
%if 0%{?compat_build}
BuildRequires:	llvm%{maj_ver}.%{min_ver}-devel = %{version}
BuildRequires:  llvm%{maj_ver}.%{min_ver}-static = %{version}
%else
BuildRequires:	llvm-devel = %{version}
# llvm-static is required, because clang-tablegen needs libLLVMTableGen, which
# is not included in libLLVM.so.
BuildRequires:  llvm-static = %{version}
BuildRequires:	llvm-googletest = %{version}
%endif

BuildRequires:	libxml2-devel
BuildRequires:  perl-generators
BuildRequires:  ncurses-devel
# According to https://fedoraproject.org/wiki/Packaging:Emacs a package
# should BuildRequires: emacs if it packages emacs integration files.
BuildRequires:	emacs

# These build dependencies are required for the test suite.
%if %with python3
# The testsuite uses /usr/bin/lit which is part of the python3-lit package.
BuildRequires:  python3-lit
%endif

BuildRequires: python2-rpm-macros
BuildRequires: python3-sphinx
BuildRequires: libatomic

# We need python3-devel for pathfix.py.
BuildRequires:	python3-devel

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

# clang requires gcc, clang++ requires libstdc++-devel
# - https://bugzilla.redhat.com/show_bug.cgi?id=1021645
# - https://bugzilla.redhat.com/show_bug.cgi?id=1158594
Requires:	libstdc++-devel
Requires:	gcc-c++

Requires: emacs-filesystem

Provides: clang(major) = %{maj_ver}

%description
clang: noun
    1. A loud, resonant, metallic sound.
    2. The strident call of a crane or goose.
    3. C-language family front-end toolkit.

The goal of the Clang project is to create a new C, C++, Objective C
and Objective C++ front-end for the LLVM compiler. Its tools are built
as libraries and designed to be loosely-coupled and extensible.

%package libs
Summary: Runtime library for clang
Recommends: compiler-rt%{?_isa} = %{version}
Recommends: libomp%{_isa} = %{version}

%description libs
Runtime library for clang.

%package devel
Summary: Development header files for clang.
Requires: %{name}%{?_isa} = %{version}-%{release}
# The clang CMake files reference tools from clang-tools-extra.
Requires: %{name}-tools-extra%{?_isa} = %{version}-%{release}

%description devel
Development header files for clang.

%if !0%{?compat_build}
%package analyzer
Summary:	A source code analysis framework
License:	NCSA and MIT
BuildArch:	noarch
Requires:	%{name} = %{version}-%{release}
# not picked up automatically since files are currently not installed in
# standard Python hierarchies yet
Requires:	python2

%description analyzer
The Clang Static Analyzer consists of both a source code analysis
framework and a standalone tool that finds bugs in C and Objective-C
programs. The standalone tool is invoked from the command-line, and is
intended to run in tandem with a build of a project or code base.

%package tools-extra
Summary: Extra tools for clang
Requires: %{name}-libs%{?_isa} = %{version}-%{release}
Requires: emacs-filesystem

%description tools-extra
A set of extra tools built using Clang's tooling API.

# Put git-clang-format in its own package, because it Requires git and python2
# and we don't want to force users to install all those dependenices if they
# just want clang.
%package -n git-clang-format
Summary: clang-format integration for git
Requires: %{name}%{?_isa} = %{version}-%{release}
Requires: git
Requires: python2

%description -n git-clang-format
clang-format integration for git.

%package -n python2-clang
Summary: Python2 bindings for clang
Requires: %{name}-libs%{?_isa} = %{version}-%{release}
Requires: python2
%description -n python2-clang
%{summary}.

%package -n llvm-test-suite
Summary: C/C++ Compiler Test Suite
License: NCSA, MIT, GPL, Python
Requires: cmake
Requires: libstdc++-static
Requires: python3-lit = 0.7.0
# ABI-Testsuite requires python2-lit
Requires: python2-lit = 0.7.0
Requires: llvm
Requires: tcl
Requires: which

%description -n llvm-test-suite
C/C++ Compiler Test Suite that is mantained as an LLVM sub-project.  This test
suite can be run with any compiler, not just clang.

%endif


%prep
%if 0%{?compat_build}
%autosetup -n %{clang_srcdir} -p1
%else
%setup -T -q -b 1 -n %{clang_tools_srcdir}

%setup -T -q -b 2 -n %{test_suite_srcdir}

pathfix.py -i %{__python2} -pn \
	ParseMultipleResults \
	utils/*.py \
	CollectDebugInfoUsingLLDB.py \
	CompareDebugInfo.py \
	tools/get-report-time \
	FindMissingLineNo.py \
	MicroBenchmarks/libs/benchmark-1.3.0/tools/compare_bench.py

%setup -q -n %{clang_srcdir}
%patch0 -p1 -b .lit-search-path
%patch1 -p1 -b .fstack-clash-protection
%patch2 -p1 -b .vendor-gcc
%patch4 -p1 -b .gtest
%patch5 -p1 -b .no-python2
#%patch6 -p1 -b .clang-format-diff-py3
#%patch7 -p1 -b .scan-view-py3

mv ../%{clang_tools_srcdir} tools/extra

pathfix.py -i %{__python3} -pn \
	tools/clang-format/*.py \
	utils/hmaptool/hmaptool \
	tools/scan-view/bin/scan-view
%endif

%build

%if 0%{?__isa_bits} == 64
sed -i 's/\@FEDORA_LLVM_LIB_SUFFIX\@/64/g' test/lit.cfg.py
%else
sed -i 's/\@FEDORA_LLVM_LIB_SUFFIX\@//g' test/lit.cfg.py
%endif

mkdir -p _build
cd _build

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

%cmake .. \
	-DLLVM_LINK_LLVM_DYLIB:BOOL=ON \
	-DCMAKE_BUILD_TYPE=RelWithDebInfo \
%if 0%{?compat_build}
	-DLLVM_CONFIG:FILEPATH=%{_bindir}/llvm-config-%{maj_ver}.%{min_ver}-%{__isa_bits} \
	-DCMAKE_INSTALL_PREFIX=%{install_prefix} \
	-DCLANG_INCLUDE_TESTS:BOOL=OFF \
%else
	-DLLVM_CONFIG:FILEPATH=/usr/bin/llvm-config-%{__isa_bits} \
	-DCLANG_INCLUDE_TESTS:BOOL=ON \
	-DLLVM_EXTERNAL_LIT=%{_bindir}/lit \
	-DLLVM_MAIN_SRC_DIR=%{_datadir}/llvm/src \
%if 0%{?__isa_bits} == 64
        -DLLVM_LIBDIR_SUFFIX=64 \
%else
        -DLLVM_LIBDIR_SUFFIX= \
%endif
%endif
	\
	-DCLANG_ENABLE_ARCMT:BOOL=ON \
	-DCLANG_ENABLE_STATIC_ANALYZER:BOOL=ON \
	-DCLANG_INCLUDE_DOCS:BOOL=ON \
	-DCLANG_PLUGIN_SUPPORT:BOOL=ON \
	-DENABLE_LINKER_BUILD_ID:BOOL=ON \
	-DLLVM_ENABLE_EH=ON \
	-DLLVM_ENABLE_RTTI=ON \
	-DLLVM_BUILD_DOCS=ON \
	-DLLVM_ENABLE_SPHINX=ON \
	-DSPHINX_WARNINGS_AS_ERRORS=OFF \
	\
	-DCLANG_BUILD_EXAMPLES:BOOL=OFF \
	-DCLANG_REPOSITORY_STRING="%{?fedora:Fedora}%{?rhel:Red Hat} %{version}-%{release}" \
	-DLIB_SUFFIX=

make %{?_smp_mflags}

%install
make install DESTDIR=%{buildroot} -C _build

%if 0%{?compat_build}

# Remove binaries/other files
rm -Rf %{buildroot}%{install_bindir}
rm -Rf %{buildroot}%{install_prefix}/share
rm -Rf %{buildroot}%{install_prefix}/libexec

# Move include files
mkdir -p %{buildroot}%{pkg_includedir}
mv  %{buildroot}/%{install_includedir}/clang %{buildroot}/%{pkg_includedir}/
mv  %{buildroot}/%{install_includedir}/clang-c %{buildroot}/%{pkg_includedir}/

%else

sed -i -e 's~#!/usr/bin/env python~#!%{_bindir}/python2~' %{buildroot}%{_bindir}/git-clang-format

# install clang python bindings
mkdir -p %{buildroot}%{python2_sitelib}/clang/
install -p -m644 bindings/python/clang/* %{buildroot}%{python2_sitelib}/clang/

# multilib fix
mv -v %{buildroot}%{_includedir}/clang/Config/config{,-%{__isa_bits}}.h
install -m 0644 %{SOURCE100} %{buildroot}%{_includedir}/clang/Config/config.h

# Move emacs integration files to the correct directory
mkdir -p %{buildroot}%{_emacs_sitestartdir}
for f in clang-format.el clang-rename.el clang-include-fixer.el; do
mv %{buildroot}{%{_datadir}/clang,%{_emacs_sitestartdir}}/$f
done

#Fix python shebang
for f in clang-tidy-diff.py clang-format-diff.py  run-clang-tidy.py run-find-all-symbols.py; do
	sed -i -e '1{\@^#!/usr/bin/env python@d}' %{buildroot}%{_datadir}/clang/$f
done

# remove editor integrations (bbedit, sublime, emacs, vim)
rm -vf %{buildroot}%{_datadir}/clang/clang-format-bbedit.applescript
rm -vf %{buildroot}%{_datadir}/clang/clang-format-sublime.py*

# TODO: Package html docs
rm -Rvf %{buildroot}%{_pkgdocdir}

# TODO: What are the Fedora guidelines for packaging bash autocomplete files?
rm -vf %{buildroot}%{_datadir}/clang/bash-autocomplete.sh

# Add clang++-{version} sylink
ln -s clang++ %{buildroot}%{_bindir}/clang++-%{maj_ver}

# Install test suite
mkdir -p %{buildroot}%{_datadir}/llvm-test-suite/
cp -R %{_builddir}/%{test_suite_srcdir}/* %{buildroot}%{_datadir}/llvm-test-suite

%endif

%check
#%if !0%{?compat_build}
# requires lit.py from LLVM utilities
#cd _build
# FIXME: Fix failing ARM tests
#PATH=%{_libdir}/llvm:$PATH make check-clang || \
#%ifarch %{arm}
#:
#%else
#false
#%endif

#%endif


%if !0%{?compat_build}
%files
%{clang_binaries}
%{_bindir}/c-index-test
%{_mandir}/man1/clang.1.gz
%{_mandir}/man1/diagtool.1.gz
%{_emacs_sitestartdir}/clang-format.el
%{_datadir}/clang/clang-format.py*
%{_datadir}/clang/clang-format-diff.py*
%endif

%files libs
%if !0%{?compat_build}
%{_libdir}/clang/
%{_libdir}/*.so.*
%else
%{pkg_libdir}/*.so.*
%{pkg_libdir}/clang/%{version}
%endif

%files devel
%if !0%{?compat_build}
%{_libdir}/*.so
%{_includedir}/clang/
%{_includedir}/clang-c/
%{_libdir}/cmake/*
%dir %{_datadir}/clang/
%else
%{pkg_libdir}/*.so
%{pkg_includedir}/clang/
%{pkg_includedir}/clang-c/
%{pkg_libdir}/cmake/
%endif

%if !0%{?compat_build}
%files analyzer
%{_bindir}/scan-view
%{_bindir}/scan-build
%{_bindir}/scan-build
%{_libexecdir}/ccc-analyzer
%{_libexecdir}/c++-analyzer
%{_datadir}/scan-view/
%{_datadir}/scan-build/
%{_mandir}/man1/scan-build.1.*

%files tools-extra
%{clang_tools_binaries}
%{_bindir}/find-all-symbols
%{_bindir}/modularize
%{_emacs_sitestartdir}/clang-rename.el
%{_emacs_sitestartdir}/clang-include-fixer.el
%{_datadir}/clang/clang-include-fixer.py*
%{_datadir}/clang/clang-tidy-diff.py*
%{_datadir}/clang/run-clang-tidy.py*
%{_datadir}/clang/run-find-all-symbols.py*
%{_datadir}/clang/clang-rename.py*

%files -n git-clang-format
%{_bindir}/git-clang-format

%files -n python2-clang
%{python2_sitelib}/clang/

%files -n llvm-test-suite
%{_datadir}/llvm-test-suite/

%endif
%changelog