89 lines
3.0 KiB
Nix
89 lines
3.0 KiB
Nix
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{ lib, stdenv, llvm_meta, fetch, cmake, python3, fixDarwinDylibNames, version
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, cxxabi ? if stdenv.hostPlatform.isFreeBSD then libcxxrt else libcxxabi
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, libcxxabi, libcxxrt
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, enableShared ? !stdenv.hostPlatform.isStatic
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}:
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assert stdenv.isDarwin -> cxxabi.pname == "libcxxabi";
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stdenv.mkDerivation {
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pname = "libcxx";
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inherit version;
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src = fetch "libcxx" "0v78bfr6h2zifvdqnj2wlfk4pvxzrqn3hg1v6lqk3y12bx9p9xny";
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postUnpack = ''
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unpackFile ${libcxxabi.src}
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export LIBCXXABI_INCLUDE_DIR="$PWD/$(ls -d libcxxabi-${version}*)/include"
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'';
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outputs = [ "out" "dev" ];
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patches = [
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./gnu-install-dirs.patch
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] ++ lib.optionals stdenv.hostPlatform.isMusl [
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../../libcxx-0001-musl-hacks.patch
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];
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# Prevent errors like "error: 'foo' is unavailable: introduced in macOS yy.zz"
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postPatch = ''
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substituteInPlace include/__config \
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--replace "# define _LIBCPP_USE_AVAILABILITY_APPLE" ""
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'';
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preConfigure = ''
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# Get headers from the cxxabi source so we can see private headers not installed by the cxxabi package
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cmakeFlagsArray=($cmakeFlagsArray -DLIBCXX_CXX_ABI_INCLUDE_PATHS="$LIBCXXABI_INCLUDE_DIR")
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'' + lib.optionalString stdenv.hostPlatform.isMusl ''
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patchShebangs utils/cat_files.py
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'';
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nativeBuildInputs = [ cmake ]
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++ lib.optional (stdenv.hostPlatform.isMusl || stdenv.hostPlatform.isWasi) python3
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++ lib.optional stdenv.hostPlatform.isDarwin fixDarwinDylibNames;
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buildInputs = [ cxxabi ];
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cmakeFlags = [
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"-DLIBCXX_LIBCPPABI_VERSION=2"
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"-DLIBCXX_CXX_ABI=${cxxabi.pname}"
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] ++ lib.optional (stdenv.hostPlatform.isMusl || stdenv.hostPlatform.isWasi) "-DLIBCXX_HAS_MUSL_LIBC=1"
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++ lib.optional (cxxabi.pname == "libcxxabi") "-DLIBCXX_LIBCXXABI_LIB_PATH=${cxxabi}/lib"
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++ lib.optional (stdenv.hostPlatform.useLLVM or false) "-DLIBCXX_USE_COMPILER_RT=ON"
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++ lib.optionals stdenv.hostPlatform.isWasm [
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"-DLIBCXX_ENABLE_THREADS=OFF"
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"-DLIBCXX_ENABLE_FILESYSTEM=OFF"
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"-DLIBCXX_ENABLE_EXCEPTIONS=OFF"
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] ++ lib.optional (!enableShared) "-DLIBCXX_ENABLE_SHARED=OFF";
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preInstall = lib.optionalString (stdenv.isDarwin) ''
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for file in lib/*.dylib; do
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if [ -L "$file" ]; then continue; fi
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baseName=$(basename $(${stdenv.cc.targetPrefix}otool -D $file | tail -n 1))
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installName="$out/lib/$baseName"
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abiName=$(echo "$baseName" | sed -e 's/libc++/libc++abi/')
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for other in $(${stdenv.cc.targetPrefix}otool -L $file | awk '$1 ~ "/libc\\+\\+abi" { print $1 }'); do
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${stdenv.cc.targetPrefix}install_name_tool -change $other ${cxxabi}/lib/$abiName $file
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done
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done
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'';
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passthru = {
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isLLVM = true;
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inherit cxxabi;
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};
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meta = llvm_meta // {
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homepage = "https://libcxx.llvm.org/";
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description = "C++ standard library";
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longDescription = ''
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libc++ is an implementation of the C++ standard library, targeting C++11,
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C++14 and above.
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'';
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# "All of the code in libc++ is dual licensed under the MIT license and the
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# UIUC License (a BSD-like license)":
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license = with lib.licenses; [ mit ncsa ];
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};
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}
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