{ lib, stdenv, llvm_meta, src, cmake, python3, fixDarwinDylibNames, version , enableShared ? !stdenv.hostPlatform.isStatic }: stdenv.mkDerivation rec { pname = "libcxx"; inherit version; inherit src; sourceRoot = "source/${pname}"; outputs = [ "out" "dev" ]; patches = [ ./gnu-install-dirs.patch ] ++ lib.optionals stdenv.hostPlatform.isMusl [ ../../libcxx-0001-musl-hacks.patch ]; preConfigure = lib.optionalString stdenv.hostPlatform.isMusl '' patchShebangs utils/cat_files.py ''; nativeBuildInputs = [ cmake python3 ] ++ lib.optional stdenv.isDarwin fixDarwinDylibNames; cmakeFlags = [ ] ++ lib.optional (stdenv.hostPlatform.isMusl || stdenv.hostPlatform.isWasi) "-DLIBCXX_HAS_MUSL_LIBC=1" ++ lib.optional (stdenv.hostPlatform.useLLVM or false) "-DLIBCXX_USE_COMPILER_RT=ON" ++ lib.optional stdenv.hostPlatform.isWasm [ "-DLIBCXX_ENABLE_THREADS=OFF" "-DLIBCXX_ENABLE_FILESYSTEM=OFF" "-DLIBCXX_ENABLE_EXCEPTIONS=OFF" ] ++ 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 ]; }; }