nixpkgs/pkgs/development/compilers/llvm/12/libc++abi.nix
2021-04-08 16:12:48 +02:00

68 lines
2.3 KiB
Nix

{ lib, stdenv, cmake, python3, fetch, libcxx, libunwind, llvm, version
, enableShared ? !stdenv.hostPlatform.isStatic
}:
stdenv.mkDerivation {
pname = "libc++abi";
inherit version;
src = fetch "libcxxabi" "0mjj4f63ix4j1b72bgzpcki7mzf3qszrq7snqhiq0c5s73skkwx0";
nativeBuildInputs = [ cmake python3 ];
buildInputs = lib.optional (!stdenv.isDarwin && !stdenv.isFreeBSD && !stdenv.hostPlatform.isWasm) libunwind;
cmakeFlags = lib.optionals (stdenv.hostPlatform.useLLVM or false) [
"-DLLVM_ENABLE_LIBCXX=ON"
"-DLIBCXXABI_USE_LLVM_UNWINDER=ON"
] ++ lib.optionals stdenv.hostPlatform.isWasm [
"-DLIBCXXABI_ENABLE_THREADS=OFF"
"-DLIBCXXABI_ENABLE_EXCEPTIONS=OFF"
] ++ lib.optionals (!enableShared) [
"-DLIBCXXABI_ENABLE_SHARED=OFF"
];
postUnpack = ''
unpackFile ${libcxx.src}
mv libcxx-* libcxx
unpackFile ${llvm.src}
mv llvm-* llvm
'' + lib.optionalString stdenv.isDarwin ''
export TRIPLE=x86_64-apple-darwin
'' + lib.optionalString stdenv.hostPlatform.isMusl ''
patch -p1 -d libcxx -i ${../libcxx-0001-musl-hacks.patch}
'' + lib.optionalString stdenv.hostPlatform.isWasm ''
patch -p1 -d llvm -i ${./libcxxabi-wasm.patch}
'';
installPhase = if stdenv.isDarwin
then ''
for file in lib/*.dylib; do
# this should be done in CMake, but having trouble figuring out
# the magic combination of necessary CMake variables
# if you fancy a try, take a look at
# https://gitlab.kitware.com/cmake/community/-/wikis/doc/cmake/RPATH-handling
install_name_tool -id $out/$file $file
done
make install
install -d 755 $out/include
install -m 644 ../include/*.h $out/include
''
else ''
install -d -m 755 $out/include $out/lib
install -m 644 lib/libc++abi.a $out/lib
install -m 644 ../include/cxxabi.h $out/include
'' + lib.optionalString enableShared ''
install -m 644 lib/libc++abi.so.1.0 $out/lib
ln -s libc++abi.so.1.0 $out/lib/libc++abi.so
ln -s libc++abi.so.1.0 $out/lib/libc++abi.so.1
'';
meta = {
homepage = "https://libcxxabi.llvm.org/";
description = "A new implementation of low level support for a standard C++ library";
license = with lib.licenses; [ ncsa mit ];
maintainers = with lib.maintainers; [ vlstill ];
platforms = lib.platforms.all;
};
}