anchor.diff:          + "${name}.tar.bz2")
       ];
       hashOutput = false;
  -    sha256 = "56ee129deba99b06eb4a8d4f746b117c5d1dc2ec5b7a0bfc06971fca1598ab9b";
  +    sha256 = "bb0601f9a209e60d8d0b867067323661a7816ff429021441b775452b8589e533";
     };
   
     buildInputs = [
  
positive.code:   inherit (lib)
      boolEn;
  
    version = "1.8.3";
  in
  stdenv.mkDerivation rec {
    name = "libva-${version}";
  
negative.code:     "--enable-drm"
      "--enable-x11"
      "--${boolEn opengl-dummy.glx}-glx"
      "--enable-wayland"
      "--enable-va-messaging"
      "--with-drivers-path=${opengl-dummy.driverSearchPath}/lib/dri"
    ];
  
  