%global major_version 3.9

Name:		clang%{major_version}
Version:	%{major_version}.1
Release:	1%{?dist}
Summary:	A C language family front-end for LLVM

License:	NCSA
URL:		http://llvm.org
Source0:	http://llvm.org/releases/%{version}/cfe-%{version}.src.tar.xz

Source100:	clang-config.h
# Support versioned install
Patch0:         clang-versioned.patch
Patch1:         clang-find_package.patch

BuildRequires:	cmake3
BuildRequires:	llvm%{major_version}-devel = %{version}
BuildRequires:	libxml2-devel
BuildRequires:  llvm%{major_version}-static

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++


%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

%description libs
Runtime library for clang.

%package devel
Summary: Development header files for clang.
Requires: %{name}%{?_isa} = %{version}-%{release}

%description devel
Development header files for clang.

%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:	python

%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.

%prep
%setup -q -n cfe-%{version}.src
#patch0 -p1 -b .versioned
%patch1 -p1 -b .find_package
%build
mkdir -p _build
cd _build
export PATH=%{_libdir}/llvm%{major_version}/bin:$PATH
%cmake3 .. \
	-DLLVM_LINK_LLVM_DYLIB:BOOL=ON \
	-DCMAKE_BUILD_TYPE=RelWithDebInfo \
	-DCMAKE_INSTALL_PREFIX=%{_libdir}/%{name} \
	-DCMAKE_INSTALL_BINDIR:PATH=bin \
	-DCMAKE_LIBRARY_PATH:PATH=%{_libdir}/llvm%{major_version} \
	-DCLANG_ENABLE_ARCMT:BOOL=ON \
	-DCLANG_ENABLE_STATIC_ANALYZER:BOOL=ON \
	-DCLANG_INCLUDE_DOCS:BOOL=ON \
	-DCLANG_INCLUDE_TESTS:BOOL=ON \
	-DCLANG_PLUGIN_SUPPORT:BOOL=ON \
	-DCLANG_BUILD_EXAMPLES:BOOL=OFF

make %{?_smp_mflags}

%install
cd _build
make install DESTDIR=%{buildroot}

# Move and symlink into FHS dirs
mkdir -p %{buildroot}%{_bindir}
for bin in %{buildroot}%{_libdir}/%{name}/bin/*
do
  # Already versioned binaries
  if [ ${bin%%%{major_version}} != $bin ]
  then
    mv $bin %{buildroot}%{_bindir}/${bin##*/}
    ln -s ../../../bin/${bin##*/} %{buildroot}%{_libdir}/%{name}/bin/${bin##*/}
  else
    # Unversioned binaries
    if [ -L $bin ]
    then
      target=$(readlink $bin)
      # Make the link point to the versioned binary if needed
      [ ${target%%%{major_version}} == $target ] && ln -sf ${target}-%{major_version} $bin
      [ $target == clang-%{major_version} ] && continue
    fi
    mv $bin %{buildroot}%{_bindir}/${bin##*/}-%{major_version}
    ln -s ../../../bin/${bin##*/}-%{major_version} %{buildroot}%{_libdir}/%{name}/bin/${bin##*/}
  fi
done
for dir in include share
do
  mkdir -p %{buildroot}%{_prefix}/$dir/%{name}
  mv %{buildroot}%{_libdir}/%{name}/$dir/* %{buildroot}%{_prefix}/$dir/%{name}/
  rmdir %{buildroot}%{_libdir}/%{name}/$dir
  ln -s ../../$dir/%{name} %{buildroot}%{_libdir}/%{name}/$dir
done
mkdir -p %{buildroot}%{_libdir}/cmake
mv %{buildroot}%{_libdir}/%{name}/lib/cmake/clang %{buildroot}%{_libdir}/cmake/%{name}
ln -s ../../../cmake/%{name} %{buildroot}%{_libdir}/%{name}/lib/cmake/clang

# Create ld.so.conf.d entry
mkdir -p %{buildroot}%{_sysconfdir}/ld.so.conf.d
cat >> %{buildroot}%{_sysconfdir}/ld.so.conf.d/%{name}-%{_arch}.conf << EOF
%{_libdir}/%{name}/lib
EOF

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

# remove git integration
rm -v %{buildroot}%{_bindir}/git-clang-format-%{major_version}
rm -v %{buildroot}%{_libdir}/%{name}/bin/git-clang-format
# remove editor integrations (bbedit, sublime, emacs, vim)
rm -v %{buildroot}%{_datadir}/%{name}/clang/clang-format-bbedit.applescript
rm -v %{buildroot}%{_datadir}/%{name}/clang/clang-format-sublime.py*
rm -v %{buildroot}%{_datadir}/%{name}/clang/clang-format.el
rm -v %{buildroot}%{_datadir}/%{name}/clang/clang-format.py*
# remove diff reformatter
rm -v %{buildroot}%{_datadir}/%{name}/clang/clang-format-diff.py*

# install static-analyzer
# http://clang-analyzer.llvm.org/installation#OtherPlatforms
mkdir -p %{buildroot}%{_libexecdir}/clang-analyzer%{major_version}/
cp -vpr ../tools/scan-view %{buildroot}%{_libexecdir}/clang-analyzer%{major_version}/
cp -vpr ../tools/scan-build %{buildroot}%{_libexecdir}/clang-analyzer%{major_version}/
# remove non-Linux scripts
rm -v %{buildroot}%{_libexecdir}/clang-analyzer%{major_version}/scan-build/*/*.bat
rm -v %{buildroot}%{_libexecdir}/clang-analyzer%{major_version}/scan-build/bin/set-xcode-analyzer
# fix manual page location
mkdir -p %{buildroot}%{_mandir}/man1/
mv -v %{buildroot}%{_libexecdir}/clang-analyzer%{major_version}/scan-build/man/scan-build.1 %{buildroot}%{_mandir}/man1/scan-build-%{major_version}.1

%check
# requires lit.py from LLVM utilities
cd _build
make check-all

%post libs -p /sbin/ldconfig
%postun libs -p /sbin/ldconfig

%files
%dir %{_libdir}/%{name}/bin
%{_libdir}/%{name}/bin/c*
%{_bindir}/c*

%files libs
%config(noreplace) %{_sysconfdir}/ld.so.conf.d/%{name}-%{_arch}.conf
%dir %{_libdir}/%{name}
%dir %{_libdir}/%{name}/lib
%{_libdir}/%{name}/lib/*.so.*
%{_libdir}/%{name}/lib/*.so

%files devel
%{_includedir}/%{name}/
%{_libdir}/%{name}/include
%{_libdir}/%{name}/lib/clang/
%{_libdir}/%{name}/lib/cmake/
%{_libdir}/cmake/%{name}/
%{_datadir}/%{name}/
%{_libdir}/%{name}/share

%files analyzer
%{_bindir}/scan-view-%{major_version}
%{_bindir}/scan-build-%{major_version}
%{_libdir}/%{name}/bin/scan*
%{_libdir}/%{name}/libexec/
%{_libexecdir}/clang-analyzer%{major_version}
%{_mandir}/man1/scan-build-%{major_version}.1.*

%changelog
* Tue Feb 7 2017 Orion Poplawski <orion@cora.nwra.com> - 3.7.1-1
- Initial versioned package