anchor.diff:    };
   in stdenv.mkDerivation rec {
     pname = "godot";
  -  version = "3.3.3";
  +  version = "3.3.4";
   
     src = fetchFromGitHub {
  -    owner  = "godotengine";
  -    repo   = "godot";
  -    rev    = "${version}-stable";
  -    sha256 = "0bkng0iwsfawxk8bxlq01ib4n6kaxjkbwcif1bhpvw5ra19430rg";
  +    owner = "godotengine";
  +    repo = "godot";
  +    rev = "${version}-stable";
  +    sha256 = "0pq87f9nsj9fs89aj7za3fcff1sky67imlsriy7jz84yb819kv8g";
     };
   
     nativeBuildInputs = [ pkg-config ];
     buildInputs = [
  -    scons udev libX11 libXcursor libXinerama libXrandr libXrender
  -    libXi libXext libXfixes freetype openssl alsa-lib libpulseaudio
  -    libGLU zlib yasm
  +    scons
  +    udev
  +    libX11
  +    libXcursor
  +    libXinerama
  +    libXrandr
  +    libXrender
  +    libXi
  +    libXext
  +    libXfixes
  +    freetype
  +    openssl
  +    alsa-lib
  +    libpulseaudio
  +    libGLU
  +    zlib
  +    yasm
     ];
   
  -  patches = [
  -    ./pkg_config_additions.patch
  -    ./dont_clobber_environment.patch
  -  ];
  +  patches = [ ./pkg_config_additions.patch ./dont_clobber_environment.patch ];
   
     enableParallelBuilding = true;
   
     sconsFlags = "target=release_debug platform=x11";
     preConfigure = ''
  -    sconsFlags+=" ${lib.concatStringsSep " " (lib.mapAttrsToList (k: v: "${k}=${builtins.toJSON v}") options)}"
  +    sconsFlags+=" ${
  +      lib.concatStringsSep " "
  +      (lib.mapAttrsToList (k: v: "${k}=${builtins.toJSON v}") options)
  +    }"
     '';
   
     outputs = [ "out" "dev" "man" ];
  
positive.code: { stdenv, lib, fetchFromGitHub, scons, pkg-config, udev, libX11
  , libXcursor , libXinerama, libXrandr, libXrender, libpulseaudio
  , libXi, libXext, libXfixes, freetype, openssl
  , alsa-lib, libGLU, zlib, yasm
  , withUdev ? true
  }:
  
  let
    options = {
  
negative.code:   '';
  
    meta = with lib; {
      homepage = "https://godotengine.org";
      description = "Free and Open Source 2D and 3D game engine";
      license = licenses.mit;
      platforms = [ "i686-linux" "x86_64-linux" ];
      maintainers = with maintainers; [ twey ];
    };
  }
  