nixpkgs/pkgs/development/compilers/llvm/git/clang/default.nix
Michael Weiss a7f062d898
llvmPackages_git: Build from Git
The version will initially remain the same so that no additional changes
to the packaging are required (i.e. this commit only includes the
required changes to build from the mono repository instead of individual
tarballs).
2021-06-03 20:33:35 +02:00

124 lines
3.9 KiB
Nix

{ lib, stdenv, llvm_meta, src, cmake, libxml2, libllvm, version, python3
, buildLlvmTools
, fixDarwinDylibNames
, enableManpages ? false
}:
let
self = stdenv.mkDerivation ({
pname = "clang";
inherit version;
inherit src;
sourceRoot = "source/clang";
nativeBuildInputs = [ cmake python3 ]
++ lib.optional enableManpages python3.pkgs.sphinx
++ lib.optional stdenv.hostPlatform.isDarwin fixDarwinDylibNames;
buildInputs = [ libxml2 libllvm ];
cmakeFlags = [
"-DCMAKE_CXX_FLAGS=-std=c++14"
"-DCLANGD_BUILD_XPC=OFF"
"-DLLVM_CONFIG_PATH=${libllvm.dev}/bin/llvm-config${lib.optionalString (stdenv.hostPlatform != stdenv.buildPlatform) "-native"}"
] ++ lib.optionals enableManpages [
"-DCLANG_INCLUDE_DOCS=ON"
"-DLLVM_ENABLE_SPHINX=ON"
"-DSPHINX_OUTPUT_MAN=ON"
"-DSPHINX_OUTPUT_HTML=OFF"
"-DSPHINX_WARNINGS_AS_ERRORS=OFF"
] ++ lib.optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
"-DLLVM_TABLEGEN_EXE=${buildLlvmTools.llvm}/bin/llvm-tblgen"
"-DCLANG_TABLEGEN=${buildLlvmTools.libclang.dev}/bin/clang-tblgen"
];
patches = [
./purity.patch
# https://reviews.llvm.org/D51899
./gnu-install-dirs.patch
];
postPatch = ''
sed -i -e 's/DriverArgs.hasArg(options::OPT_nostdlibinc)/true/' \
-e 's/Args.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
'' + lib.optionalString stdenv.hostPlatform.isMusl ''
sed -i -e 's/lgcc_s/lgcc_eh/' lib/Driver/ToolChains/*.cpp
'';
outputs = [ "out" "lib" "dev" "python" ];
# Clang expects to find LLVMgold in its own prefix
postInstall = ''
if [ -e ${libllvm.lib}/lib/LLVMgold.so ]; then
ln -sv ${libllvm.lib}/lib/LLVMgold.so $lib/lib
fi
ln -sv $out/bin/clang $out/bin/cpp
# Move libclang to 'lib' output
moveToOutput "lib/libclang.*" "$lib"
moveToOutput "lib/libclang-cpp.*" "$lib"
substituteInPlace $out/lib/cmake/clang/ClangTargets-release.cmake \
--replace "\''${_IMPORT_PREFIX}/lib/libclang." "$lib/lib/libclang." \
--replace "\''${_IMPORT_PREFIX}/lib/libclang-cpp." "$lib/lib/libclang-cpp."
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
mkdir -p $dev/bin
cp bin/clang-tblgen $dev/bin
'';
passthru = {
isClang = true;
inherit libllvm;
};
meta = llvm_meta // {
homepage = "https://clang.llvm.org/";
description = "A C language family frontend for LLVM";
longDescription = ''
The Clang project provides a language front-end and tooling
infrastructure for languages in the C language family (C, C++, Objective
C/C++, OpenCL, CUDA, and RenderScript) for the LLVM project.
It aims to deliver amazingly fast compiles, extremely useful error and
warning messages and to provide a platform for building great source
level tools. The Clang Static Analyzer and clang-tidy are tools that
automatically find bugs in your code, and are great examples of the sort
of tools that can be built using the Clang frontend as a library to
parse C/C++ code.
'';
};
} // lib.optionalAttrs enableManpages {
pname = "clang-manpages";
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 = llvm_meta // {
description = "man page for Clang ${version}";
};
});
in self