mirror of
https://github.com/NixOS/nixpkgs.git
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120 lines
3.5 KiB
Nix
120 lines
3.5 KiB
Nix
{
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lib,
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stdenv,
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swift,
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useSwiftDriver ? true,
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swift-driver,
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clang,
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}:
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stdenv.mkDerivation (
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swift._wrapperParams
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// {
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pname = "swift-wrapper";
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inherit (swift) version meta;
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outputs = [
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"out"
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"man"
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];
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# Wrapper and setup hook variables.
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inherit swift;
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inherit (swift)
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swiftOs
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swiftArch
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swiftModuleSubdir
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swiftLibSubdir
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swiftStaticModuleSubdir
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swiftStaticLibSubdir
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;
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swiftDriver = lib.optionalString useSwiftDriver "${swift-driver}/bin/swift-driver";
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cc_wrapper = clang.override (prev: {
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extraBuildCommands =
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prev.extraBuildCommands
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# We need to use the resource directory corresponding to Swift’s
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# version of Clang instead of passing along the one from the
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# `cc-wrapper` flags.
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+ ''
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rm -r $out/resource-root
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substituteInPlace $out/nix-support/cc-cflags \
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--replace-fail \
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"-resource-dir=$out/resource-root" \
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"-resource-dir=${lib.getLib swift}/lib/swift/clang"
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''
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+
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lib.optionalString
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(
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stdenv.targetPlatform.isLinux
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&& stdenv.targetPlatform.isx86
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&& lib.versionAtLeast (lib.getVersion clang) "19.1"
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)
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''
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# Swift bundles Clang 16, which predates -mtls-dialect=gnu2
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# support (added in Clang 19.1). The cc-wrapper adds it based
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# on the system Clang version, so strip it here.
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substituteInPlace $out/nix-support/add-local-cc-cflags-before.sh \
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--replace-fail "'-mtls-dialect=gnu2'" ""
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''
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# We need the libc++ headers corresponding to the LLVM version of
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# Swift’s Clang.
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+ lib.optionalString (clang.libcxx != null) ''
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include -isystem "${lib.getDev swift}/include/c++/v1" > $out/nix-support/libcxx-cxxflags
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'';
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});
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env.darwinMinVersion = lib.optionalString stdenv.targetPlatform.isDarwin (
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stdenv.targetPlatform.darwinMinVersion
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);
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buildCommand = ''
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mkdir -p $out/bin $out/nix-support
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# Symlink all Swift binaries first.
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# NOTE: This specifically omits clang binaries. We want to hide these for
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# private use by Swift only.
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ln -s -t $out/bin/ $swift/bin/swift*
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# Replace specific binaries with wrappers.
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for executable in swift swiftc swift-frontend; do
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export prog=$swift/bin/$executable
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rm $out/bin/$executable
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substituteAll '${./wrapper.sh}' $out/bin/$executable
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chmod a+x $out/bin/$executable
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done
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${lib.optionalString useSwiftDriver ''
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# Symlink swift-driver executables.
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ln -s -t $out/bin/ ${swift-driver}/bin/*
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''}
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ln -s ${swift.man} $man
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# This link is here because various tools (swiftpm) check for stdlib
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# relative to the swift compiler. It's fine if this is for build-time
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# stuff, but we should patch all cases were it would end up in an output.
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ln -s ${swift.lib}/lib $out/lib
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substituteAll ${./setup-hook.sh} $out/nix-support/setup-hook
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# Propagate any propagated inputs from the unwrapped Swift compiler, if any.
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if [ -e "$swift/nix-support" ]; then
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for input in "$swift/nix-support/"*propagated*; do
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cp "$input" "$out/nix-support/$(basename "$input")"
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done
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fi
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'';
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passthru = {
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inherit swift;
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inherit (swift)
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swiftOs
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swiftArch
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swiftModuleSubdir
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swiftLibSubdir
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tests
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;
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};
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}
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)
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