mps: add darwin support

  fetchFromGitHub,

  autoreconfHook,

  sqlite,

  xcbuildHook,

}:

stdenv.mkDerivation rec {

stdenv.mkDerivation (finalAttrs: {

  pname = "mps";

  version = "1.118.0";

  src = fetchFromGitHub {

    owner = "Ravenbrook";

    repo = "mps";

    tag = "release-${version}";

    tag = "release-${finalAttrs.version}";

    hash = "sha256-3ql3jWLccgnQHKf23B1en+nJ9rxqmHcWd7aBr93YER0=";

  };

  postPatch = ''

  sourceRoot = lib.optionalString stdenv.hostPlatform.isDarwin "${finalAttrs.src.name}/code";

  postPatch = lib.optionalString stdenv.hostPlatform.isLinux ''

    # Disable -Werror to avoid biuld failure on fresh toolchains like

    # gcc-13.

    substituteInPlace code/gc.gmk --replace-fail '-Werror ' ' '

    substituteInPlace code/gp.gmk --replace-fail '-Werror ' ' '

    substituteInPlace code/ll.gmk --replace-fail '-Werror ' ' '

    substituteInPlace code/gc.gmk \

      --replace-fail "-Werror " " "

    substituteInPlace code/gp.gmk \

      --replace-fail "-Werror " " "

    substituteInPlace code/ll.gmk \

      --replace-fail "-Werror " " "

  '';

  nativeBuildInputs = [ autoreconfHook ];

  nativeBuildInputs =

    (lib.optionals stdenv.hostPlatform.isLinux [ autoreconfHook ])

    ++ (lib.optionals stdenv.hostPlatform.isDarwin [ xcbuildHook ]);

  buildInputs = [ sqlite ];

  xcbuildFlags = lib.optionals stdenv.hostPlatform.isDarwin [

    "-configuration"

    "Release"

    "-project"

    "mps.xcodeproj"

    # "-scheme"

    # "mps"

    "OTHER_CFLAGS='-Wno-error=unused-but-set-variable'"

  ];

  installPhase = lib.optionalString stdenv.hostPlatform.isDarwin ''

    runHook preInstall

    install -Dm644 Products/Release/libmps.a $out/lib/libmps.a

    mkdir $out/include

    cp mps*.h $out/include/

    runHook postInstall

  '';

  meta = {

    description = "Flexible memory management and garbage collection library";

    homepage = "https://www.ravenbrook.com/project/mps";

    license = lib.licenses.sleepycat;

    platforms = lib.platforms.linux;

    platforms = lib.platforms.linux ++ lib.platforms.darwin;

    maintainers = [ lib.maintainers.thoughtpolice ];

  };

}

})