{ lib, stdenv, fetchurl, patchelf, gmp }:
let
  dynamic-linker = stdenv.cc.bintools.dynamicLinker;
in
stdenv.mkDerivation rec {
  pname = "mlton";
  version = "20210117";

  src =
    if stdenv.hostPlatform.system == "x86_64-linux" then
      (fetchurl {
        url = "https://github.com/MLton/mlton/releases/download/on-${version}-release/${pname}-${version}-1.amd64-linux-glibc2.31.tgz.tgz";
        sha256 = "0f4q575yfm5dpg4a2wsnqn4l2zrar96p6rlsk0dw10ggyfwvsjlf";
      })
    else if stdenv.hostPlatform.system == "x86_64-darwin" then
      (fetchurl {
        url = "https://github.com/MLton/mlton/releases/download/on-${version}-release/${pname}-${version}-1.amd64-darwin-19.6.gmp-static.tgz";
        sha256 = "1cw7yhw48qp12q0adwf8srpjzrgkp84kmlkqw3pz8vkxz4p9hbdv";
      })
    else
      throw "Architecture not supported";

  buildInputs = [ gmp ];
  nativeBuildInputs = lib.optional stdenv.isLinux patchelf;

  buildPhase = ''
    make update \
      CC="$(type -p cc)" \
      WITH_GMP_INC_DIR="${gmp.dev}/include" \
      WITH_GMP_LIB_DIR="${gmp}/lib"
  '';

  installPhase = ''
    make install PREFIX=$out
  '';

  postFixup = lib.optionalString stdenv.isLinux ''
    patchelf --set-interpreter ${dynamic-linker} $out/lib/mlton/mlton-compile
    patchelf --set-rpath ${gmp}/lib $out/lib/mlton/mlton-compile

    for e in mllex mlnlffigen mlprof mlyacc; do
      patchelf --set-interpreter ${dynamic-linker} $out/bin/$e
      patchelf --set-rpath ${gmp}/lib $out/bin/$e
    done
  '' + lib.optionalString stdenv.isDarwin ''
    install_name_tool -change \
      /opt/local/lib/libgmp.10.dylib \
      ${gmp}/lib/libgmp.10.dylib \
      $out/lib/mlton/mlton-compile

    for e in mllex mlnlffigen mlprof mlyacc; do
      install_name_tool -change \
        /opt/local/lib/libgmp.10.dylib \
        ${gmp}/lib/libgmp.10.dylib \
        $out/bin/$e
    done
  '';

  meta = import ./meta.nix;
}
