depot/third_party/nixpkgs/pkgs/development/compilers/zig/0.9.1.nix

{ lib
, stdenv
, fetchFromGitHub
, cmake
, llvmPackages
, libxml2
, zlib
}:

let
  zig_0_10_0 = fetchFromGitHub {
    owner = "ziglang";
    repo = "zig";
    rev = "0.10.0";
    hash = "sha256-DNs937N7PLQimuM2anya4npYXcj6cyH+dRS7AiOX7tw=";
  };
in
stdenv.mkDerivation rec {
  pname = "zig";
  version = "0.9.1";

  src = fetchFromGitHub {
    owner = "ziglang";
    repo = pname;
    rev = version;
    hash = "sha256-x2c4c9RSrNWGqEngio4ArW7dJjW0gg+8nqBwPcR721k=";
  };

  patches = [
    # Fix index out of bounds reading RPATH (cherry-picked from 0.10-dev)
    ./rpath.patch
    # Fix build on macOS 13 (cherry-picked from 0.10-dev)
    ./ventura.patch
  ];

  # TODO: remove on next upgrade
  prePatch = ''
    cp -R ${zig_0_10_0}/lib/libc/include/any-macos.13-any lib/libc/include/any-macos.13-any
    cp -R ${zig_0_10_0}/lib/libc/include/aarch64-macos.13-none lib/libc/include/aarch64-macos.13-gnu
    cp -R ${zig_0_10_0}/lib/libc/include/x86_64-macos.13-none lib/libc/include/x86_64-macos.13-gnu
    cp ${zig_0_10_0}/lib/libc/darwin/libSystem.13.tbd lib/libc/darwin/
  '';

  nativeBuildInputs = [
    cmake
    llvmPackages.llvm.dev
  ];

  buildInputs = [
    libxml2
    zlib
  ] ++ (with llvmPackages; [
    libclang
    lld
    llvm
  ]);

  preBuild = ''
    export HOME=$TMPDIR;
  '';

  cmakeFlags = [
    # file RPATH_CHANGE could not write new RPATH
    "-DCMAKE_SKIP_BUILD_RPATH=ON"

    # ensure determinism in the compiler build
    "-DZIG_TARGET_MCPU=baseline"
  ];

  doCheck = true;
  checkPhase = ''
    runHook preCheck
    ./zig test --cache-dir "$TMPDIR" -I $src/test $src/test/behavior.zig
    runHook postCheck
  '';

  meta = with lib; {
    homepage = "https://ziglang.org/";
    description =
      "General-purpose programming language and toolchain for maintaining robust, optimal, and reusable software";
    license = licenses.mit;
    maintainers = with maintainers; [ aiotter andrewrk AndersonTorres ];
    platforms = platforms.unix;
  };
}