anchor.diff:      makeWrapper
       pkg-config
       python3
  -  ];
  -
  -  mesonFlags = [
  -    "-Dgbm=disabled"
     ];
   
     postInstall = ''
  
positive.code: , meson
  , ninja
  , libGL
  , libglvnd
  , makeWrapper
  , pkg-config
  , wayland
  , libxcb
  , libX11
  , python3
  }:
  
  stdenv.mkDerivation rec {
    pname = "waffle";
  
negative.code: 
    buildInputs = [
      libGL
    ] ++ stdenv.lib.optionals (with stdenv.hostPlatform; isUnix && !isDarwin) [
      libglvnd
    ] ++ stdenv.lib.optionals x11Support [
      libX11
      libxcb
    ] ++ stdenv.lib.optionals waylandSupport [
      wayland
    ] ++ stdenv.lib.optionals useGbm [
      mesa
      libudev
    ];
  
    nativeBuildInputs = [
  