anchor.diff:  , librusty_v8 ? callPackage ./librusty_v8.nix { }
   }:
   
  -let
  -  libtcc = tinycc.overrideAttrs (oa: {
  -    makeFlags = [ "libtcc.a" ];
  -    # tests want tcc binary
  -    doCheck = false;
  -    outputs = [ "out" ];
  -    installPhase = ''
  -      mkdir -p $out/lib/
  -      mv libtcc.a $out/lib/
  -    '';
  -  });
  -in
   rustPlatform.buildRustPackage rec {
     pname = "deno";
     version = "1.25.1";
  
positive.code:     license = licenses.mit;
      maintainers = with maintainers; [ jk ];
      platforms = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
      broken = stdenv.isDarwin; # currently fail to build tinycc on darwin in nixpkgs
    };
  }
  
negative.code:   # The deno_ffi package currently needs libtcc.a on linux and macos and will try to compile it at build time
    # To avoid this we point it to our copy (dir)
    # In the future tinycc will be replaced with asm
    libtcc = tinycc.overrideAttrs (oa: {
      makeFlags = [ "libtcc.a" ];
      # tests want tcc binary
      doCheck = false;
      outputs = [ "out" ];
      installPhase = ''
        mkdir -p $out/lib/
        mv libtcc.a $out/lib/
      '';
      # building the whole of tcc on darwin is broken in nixpkgs
      # but just building libtcc.a works fine so mark this as unbroken
      meta.broken = false;
    });
    TCC_PATH = "${libtcc}/lib";
  
    # Tests have some inconsistencies between runs with output integration tests
  