139 lines
4.7 KiB
Nix
139 lines
4.7 KiB
Nix
{ lib, stdenv, llvm_meta
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, monorepoSrc, runCommand
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, substituteAll, cmake, ninja, libxml2, libllvm, version, python3
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, buildLlvmTools
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, fixDarwinDylibNames
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, enableManpages ? false
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}:
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let
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self = stdenv.mkDerivation (rec {
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pname = "clang";
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inherit version;
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src = runCommand "${pname}-src-${version}" {} ''
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mkdir -p "$out"
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cp -r ${monorepoSrc}/cmake "$out"
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cp -r ${monorepoSrc}/${pname} "$out"
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cp -r ${monorepoSrc}/clang-tools-extra "$out"
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'';
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sourceRoot = "${src.name}/${pname}";
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nativeBuildInputs = [ cmake ninja python3 ]
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++ lib.optional enableManpages python3.pkgs.sphinx
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++ lib.optional stdenv.hostPlatform.isDarwin fixDarwinDylibNames;
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buildInputs = [ libxml2 libllvm ];
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cmakeFlags = [
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"-DCLANG_INSTALL_PACKAGE_DIR=${placeholder "dev"}/lib/cmake/clang"
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"-DCLANGD_BUILD_XPC=OFF"
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"-DLLVM_ENABLE_RTTI=ON"
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] ++ lib.optionals enableManpages [
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"-DCLANG_INCLUDE_DOCS=ON"
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"-DLLVM_ENABLE_SPHINX=ON"
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"-DSPHINX_OUTPUT_MAN=ON"
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"-DSPHINX_OUTPUT_HTML=OFF"
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"-DSPHINX_WARNINGS_AS_ERRORS=OFF"
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] ++ lib.optionals (!stdenv.buildPlatform.canExecute stdenv.hostPlatform) [
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"-DLLVM_TABLEGEN_EXE=${buildLlvmTools.llvm}/bin/llvm-tblgen"
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"-DCLANG_TABLEGEN=${buildLlvmTools.libclang.dev}/bin/clang-tblgen"
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# Added in LLVM15:
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# `clang-tidy-confusable-chars-gen`: https://github.com/llvm/llvm-project/commit/c3574ef739fbfcc59d405985a3a4fa6f4619ecdb
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# `clang-pseudo-gen`: https://github.com/llvm/llvm-project/commit/cd2292ef824591cc34cc299910a3098545c840c7
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"-DCLANG_TIDY_CONFUSABLE_CHARS_GEN=${buildLlvmTools.libclang.dev}/bin/clang-tidy-confusable-chars-gen"
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"-DCLANG_PSEUDO_GEN=${buildLlvmTools.libclang.dev}/bin/clang-pseudo-gen"
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];
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patches = [
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./purity.patch
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# https://reviews.llvm.org/D51899
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./gnu-install-dirs.patch
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../../common/clang/add-nostdlibinc-flag.patch
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(substituteAll {
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src = ../../clang-11-12-LLVMgold-path.patch;
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libllvmLibdir = "${libllvm.lib}/lib";
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})
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];
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postPatch = ''
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(cd tools && ln -s ../../clang-tools-extra extra)
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'' + lib.optionalString stdenv.hostPlatform.isMusl ''
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sed -i -e 's/lgcc_s/lgcc_eh/' lib/Driver/ToolChains/*.cpp
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'';
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outputs = [ "out" "lib" "dev" "python" ];
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env = lib.optionalAttrs (stdenv.buildPlatform != stdenv.hostPlatform) {
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# The following warning is triggered with (at least) gcc >=
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# 12, but appears to occur only for cross compiles.
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NIX_CFLAGS_COMPILE = "-Wno-maybe-uninitialized";
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};
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postInstall = ''
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ln -sv $out/bin/clang $out/bin/cpp
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# Move libclang to 'lib' output
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moveToOutput "lib/libclang.*" "$lib"
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moveToOutput "lib/libclang-cpp.*" "$lib"
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substituteInPlace $dev/lib/cmake/clang/ClangTargets-release.cmake \
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--replace "\''${_IMPORT_PREFIX}/lib/libclang." "$lib/lib/libclang." \
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--replace "\''${_IMPORT_PREFIX}/lib/libclang-cpp." "$lib/lib/libclang-cpp."
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mkdir -p $python/bin $python/share/clang/
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mv $out/bin/{git-clang-format,scan-view} $python/bin
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if [ -e $out/bin/set-xcode-analyzer ]; then
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mv $out/bin/set-xcode-analyzer $python/bin
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fi
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mv $out/share/clang/*.py $python/share/clang
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rm $out/bin/c-index-test
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patchShebangs $python/bin
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mkdir -p $dev/bin
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cp bin/{clang-tblgen,clang-tidy-confusable-chars-gen,clang-pseudo-gen} $dev/bin
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'';
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passthru = {
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inherit libllvm;
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isClang = true;
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hardeningUnsupportedFlags = [ "fortify3" ];
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};
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meta = llvm_meta // {
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homepage = "https://clang.llvm.org/";
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description = "A C language family frontend for LLVM";
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longDescription = ''
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The Clang project provides a language front-end and tooling
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infrastructure for languages in the C language family (C, C++, Objective
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C/C++, OpenCL, CUDA, and RenderScript) for the LLVM project.
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It aims to deliver amazingly fast compiles, extremely useful error and
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warning messages and to provide a platform for building great source
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level tools. The Clang Static Analyzer and clang-tidy are tools that
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automatically find bugs in your code, and are great examples of the sort
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of tools that can be built using the Clang frontend as a library to
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parse C/C++ code.
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'';
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mainProgram = "clang";
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};
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} // lib.optionalAttrs enableManpages {
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pname = "clang-manpages";
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ninjaFlags = [ "docs-clang-man" ];
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installPhase = ''
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mkdir -p $out/share/man/man1
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# Manually install clang manpage
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cp docs/man/*.1 $out/share/man/man1/
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'';
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outputs = [ "out" ];
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doCheck = false;
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meta = llvm_meta // {
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description = "man page for Clang ${version}";
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};
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});
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in self
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