{ stdenvNoCC, darwin-stubs }: let self = stdenvNoCC.mkDerivation { pname = "libobjc"; inherit (darwin-stubs) version; buildCommand = '' mkdir -p $out/{include,lib/swift} cp -r ${darwin-stubs}/usr/include/objc $out/include cp ${darwin-stubs}/usr/lib/libobjc* $out/lib cp -r ${darwin-stubs}/usr/lib/swift/ObjectiveC.swiftmodule $out/lib/swift cp ${darwin-stubs}/usr/lib/swift/libswiftObjectiveC.tbd $out/lib/swift ''; passthru.tbdRewrites = { const."/usr/lib/libobjc.A.dylib" = "${self}/lib/libobjc.A.dylib"; const."/usr/lib/swift/libswiftObjectiveC.dylib" = "${self}/lib/swift/libswiftObjectiveC.dylib"; }; }; in self