anchor.diff:      platforms = platforms.linux;
       maintainers = with maintainers; [ primeos jfrankenau ];
     };
  -
  -  postFixup = lib.optionalString enableX11 ''
  -    patchelf --set-rpath "$(patchelf --print-rpath $out/lib/dri/iHD_drv_video.so):${lib.makeLibraryPath [ libX11  ]}" \
  -      $out/lib/dri/iHD_drv_video.so
  -  '';
   }
  
positive.code:   buildInputs = [ libva libpciaccess intel-gmmlib ]
      ++ lib.optional enableX11 libX11;
  
    meta = with lib; {
      description = "Intel Media Driver for VAAPI — Broadwell+ iGPUs";
      longDescription = ''
  
negative.code: { lib, stdenv, fetchFromGitHub
  , cmake, pkg-config
  , libva, libpciaccess, intel-gmmlib
  , enableX11 ? stdenv.isLinux, libX11
  }:
  
  stdenv.mkDerivation rec {
    pname = "intel-media-driver";
    version = "21.3.2";
  
    outputs = [ "out" "dev" ];
  
    src = fetchFromGitHub {
      owner  = "intel";
  