diff options
Diffstat (limited to 'nixpkgs/pkgs/development/compilers/llvm/git/libcxx/default.nix')
-rw-r--r-- | nixpkgs/pkgs/development/compilers/llvm/git/libcxx/default.nix | 40 |
1 files changed, 34 insertions, 6 deletions
diff --git a/nixpkgs/pkgs/development/compilers/llvm/git/libcxx/default.nix b/nixpkgs/pkgs/development/compilers/llvm/git/libcxx/default.nix index f511eba81dc5..bedfd5afee15 100644 --- a/nixpkgs/pkgs/development/compilers/llvm/git/libcxx/default.nix +++ b/nixpkgs/pkgs/development/compilers/llvm/git/libcxx/default.nix @@ -1,15 +1,23 @@ { lib, stdenv, llvm_meta, src, cmake, python3, fixDarwinDylibNames, version +, libcxxabi , enableShared ? !stdenv.hostPlatform.isStatic + +# If headersOnly is true, the resulting package would only include the headers. +# Use this to break the circular dependency between libcxx and libcxxabi. +# +# Some context: +# https://reviews.llvm.org/rG1687f2bbe2e2aaa092f942d4a97d41fad43eedfb +, headersOnly ? false }: stdenv.mkDerivation rec { - pname = "libcxx"; + pname = if headersOnly then "cxx-headers" else "libcxx"; inherit version; inherit src; - sourceRoot = "source/${pname}"; + sourceRoot = "source/libcxx"; - outputs = [ "out" "dev" ]; + outputs = [ "out" ] ++ lib.optional (!headersOnly) "dev"; patches = [ ./gnu-install-dirs.patch @@ -17,6 +25,12 @@ stdenv.mkDerivation rec { ../../libcxx-0001-musl-hacks.patch ]; + # Prevent errors like "error: 'foo' is unavailable: introduced in macOS yy.zz" + postPatch = '' + substituteInPlace include/__config \ + --replace "# define _LIBCPP_USE_AVAILABILITY_APPLE" "" + ''; + preConfigure = lib.optionalString stdenv.hostPlatform.isMusl '' patchShebangs utils/cat_files.py ''; @@ -24,15 +38,29 @@ stdenv.mkDerivation rec { nativeBuildInputs = [ cmake python3 ] ++ lib.optional stdenv.isDarwin fixDarwinDylibNames; - cmakeFlags = [ - ] ++ lib.optional (stdenv.hostPlatform.isMusl || stdenv.hostPlatform.isWasi) "-DLIBCXX_HAS_MUSL_LIBC=1" + buildInputs = lib.optionals (!headersOnly) [ libcxxabi ]; + + cmakeFlags = [ "-DLIBCXX_CXX_ABI=libcxxabi" ] + ++ lib.optional (stdenv.hostPlatform.isMusl || stdenv.hostPlatform.isWasi) "-DLIBCXX_HAS_MUSL_LIBC=1" ++ lib.optional (stdenv.hostPlatform.useLLVM or false) "-DLIBCXX_USE_COMPILER_RT=ON" - ++ lib.optional stdenv.hostPlatform.isWasm [ + ++ lib.optionals stdenv.hostPlatform.isWasm [ "-DLIBCXX_ENABLE_THREADS=OFF" "-DLIBCXX_ENABLE_FILESYSTEM=OFF" "-DLIBCXX_ENABLE_EXCEPTIONS=OFF" ] ++ lib.optional (!enableShared) "-DLIBCXX_ENABLE_SHARED=OFF"; + buildFlags = lib.optional headersOnly "generate-cxx-headers"; + installTargets = lib.optional headersOnly "install-cxx-headers"; + + # At this point, cxxabi headers would be installed in the dev output, which + # prevents moveToOutput from doing its job later in the build process. + postInstall = lib.optionalString (!headersOnly) '' + mv "$dev/include/c++/v1/"* "$out/include/c++/v1/" + pushd "$dev" + rmdir -p include/c++/v1 + popd + ''; + passthru = { isLLVM = true; }; |