nixpkgs/pkgs/development/compilers/llvm/4/clang/default.nix
2019-07-17 10:30:05 +02:00

113 lines
3.5 KiB
Nix

{ stdenv, fetch, cmake, libxml2, llvm, version, release_version, clang-tools-extra_src, python
, fixDarwinDylibNames
, enableManpages ? false
}:
let
gcc = if stdenv.cc.isGNU then stdenv.cc.cc else stdenv.cc.cc.gcc;
self = stdenv.mkDerivation ({
name = "clang-${version}";
src = fetch "cfe" "16vnv3msnvx33dydd17k2cq0icndi1a06bg5vcxkrhjjb1rqlwv1";
unpackPhase = ''
unpackFile $src
mv cfe-${version}* clang
sourceRoot=$PWD/clang
unpackFile ${clang-tools-extra_src}
mv clang-tools-extra-* $sourceRoot/tools/extra
'';
nativeBuildInputs = [ cmake python ]
++ stdenv.lib.optional enableManpages python.pkgs.sphinx;
buildInputs = [ libxml2 llvm ]
++ stdenv.lib.optional stdenv.isDarwin fixDarwinDylibNames;
cmakeFlags = [
"-DCMAKE_CXX_FLAGS=-std=c++11"
] ++ stdenv.lib.optionals enableManpages [
"-DCLANG_INCLUDE_DOCS=ON"
"-DLLVM_ENABLE_SPHINX=ON"
"-DSPHINX_OUTPUT_MAN=ON"
"-DSPHINX_OUTPUT_HTML=OFF"
"-DSPHINX_WARNINGS_AS_ERRORS=OFF"
]
# Maybe with compiler-rt this won't be needed?
++ stdenv.lib.optional stdenv.isLinux "-DGCC_INSTALL_PREFIX=${gcc}"
++ stdenv.lib.optional (stdenv.cc.libc != null) "-DC_INCLUDE_DIRS=${stdenv.cc.libc}/include";
patches = [ ./purity.patch ];
postPatch = ''
sed -i -e 's/Args.hasArg(options::OPT_nostdlibinc)/true/' lib/Driver/Tools.cpp
sed -i -e 's/DriverArgs.hasArg(options::OPT_nostdlibinc)/true/' lib/Driver/ToolChains.cpp
# Patch for standalone doc building
sed -i '1s,^,find_package(Sphinx REQUIRED)\n,' docs/CMakeLists.txt
'' + stdenv.lib.optionalString stdenv.hostPlatform.isMusl ''
sed -i -e 's/lgcc_s/lgcc_eh/' lib/Driver/Tools.cpp
'';
outputs = [ "out" "lib" "python" ];
# Clang expects to find LLVMgold in its own prefix
# Clang expects to find sanitizer libraries in its own prefix
postInstall = ''
if [ -e ${llvm}/lib/LLVMgold.so ]; then
ln -sv ${llvm}/lib/LLVMgold.so $out/lib
fi
ln -sv ${llvm}/lib/clang/${release_version}/lib $out/lib/clang/${release_version}/
ln -sv $out/bin/clang $out/bin/cpp
# Move libclang to 'lib' output
moveToOutput "lib/libclang.*" "$lib"
substituteInPlace $out/lib/cmake/clang/ClangTargets-release.cmake \
--replace "\''${_IMPORT_PREFIX}/lib/libclang." "$lib/lib/libclang."
mkdir -p $python/bin $python/share/clang/
mv $out/bin/{git-clang-format,scan-view} $python/bin
if [ -e $out/bin/set-xcode-analyzer ]; then
mv $out/bin/set-xcode-analyzer $python/bin
fi
mv $out/share/clang/*.py $python/share/clang
rm $out/bin/c-index-test
'';
enableParallelBuilding = true;
passthru = {
isClang = true;
inherit llvm;
} // stdenv.lib.optionalAttrs stdenv.isLinux {
inherit gcc;
};
meta = {
description = "A c, c++, objective-c, and objective-c++ frontend for the llvm compiler";
homepage = http://llvm.org/;
license = stdenv.lib.licenses.ncsa;
platforms = stdenv.lib.platforms.all;
};
} // stdenv.lib.optionalAttrs enableManpages {
name = "clang-manpages-${version}";
buildPhase = ''
make docs-clang-man
'';
installPhase = ''
mkdir -p $out/share/man/man1
# Manually install clang manpage
cp docs/man/*.1 $out/share/man/man1/
'';
outputs = [ "out" ];
doCheck = false;
meta.description = "man page for Clang ${version}";
});
in self