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{ lib, stdenv, llvm_meta, fetch, cmake, python3, libcxxabi, fixDarwinDylibNames, version
, enableShared ? !stdenv.hostPlatform.isStatic
}:
stdenv.mkDerivation {
pname = "libcxx";
inherit version;
src = fetch "libcxx" "0kmhcapm2cjwalyiqasj9dmqbw59mcwdl8fgl951wg7ax84b8hj4";
postUnpack = ''
unpackFile ${libcxxabi.src}
export LIBCXXABI_INCLUDE_DIR="$PWD/$(ls -d libcxxabi-${version}*)/include"
'';
outputs = [ "out" "dev" ];
patches = [
./gnu-install-dirs.patch
] ++ lib.optionals stdenv.hostPlatform.isMusl [
../../libcxx-0001-musl-hacks.patch
];
# Prevent errors like "error: 'foo' is unavailable: introduced in macOS yy.zz"
postPatch = ''
substituteInPlace include/__config \
--replace "# define _LIBCPP_USE_AVAILABILITY_APPLE" ""
'';
prePatch = ''
substituteInPlace lib/CMakeLists.txt --replace "/usr/lib/libc++" "\''${LIBCXX_LIBCXXABI_LIB_PATH}/libc++"
'';
preConfigure = ''
# Get headers from the cxxabi source so we can see private headers not installed by the cxxabi package
cmakeFlagsArray=($cmakeFlagsArray -DLIBCXX_CXX_ABI_INCLUDE_PATHS="$LIBCXXABI_INCLUDE_DIR")
'' + lib.optionalString stdenv.hostPlatform.isMusl ''
patchShebangs utils/cat_files.py
'';
nativeBuildInputs = [ cmake ]
++ lib.optional stdenv.hostPlatform.isMusl python3
++ lib.optional stdenv.hostPlatform.isDarwin fixDarwinDylibNames;
buildInputs = [ libcxxabi ];
cmakeFlags = [
"-DLIBCXX_LIBCXXABI_LIB_PATH=${libcxxabi}/lib"
"-DLIBCXX_LIBCPPABI_VERSION=2"
"-DLIBCXX_CXX_ABI=libcxxabi"
] ++ lib.optional stdenv.hostPlatform.isMusl "-DLIBCXX_HAS_MUSL_LIBC=1"
++ lib.optional (stdenv.hostPlatform.useLLVM or false) "-DLIBCXX_USE_COMPILER_RT=ON"
++ lib.optional (!enableShared) "-DLIBCXX_ENABLE_SHARED=OFF" ;
passthru = {
isLLVM = true;
};
meta = llvm_meta // {
homepage = "https://libcxx.llvm.org/";
description = "C++ standard library";
longDescription = ''
libc++ is an implementation of the C++ standard library, targeting C++11,
C++14 and above.
'';
# "All of the code in libc++ is dual licensed under the MIT license and the
# UIUC License (a BSD-like license)":
license = with lib.licenses; [ mit ncsa ];
};
}
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