anchor.diff:    };
   
     buildInputs = [
  -    xorg.dri2proto
  -    xorg.libX11
  -    xorg.libXext
  +    dri2proto
  +    libx11
  +    libxext
     ];
   
     configureFlags = [
  
positive.code: { stdenv
  , fetchurl
  
  , xorg
  , mesa_noglu
  }:
  
  
negative.code:     };
    };
  
    meta = with lib; {
      description = "VDPAU wrapper and trace libraries";
      homepage = https://people.freedesktop.org/~aplattner/vdpau/;
      license = licenses.mit;
  