anchor.diff:    };
   
     nativeBuildInputs = [ pkg-config ];
  +
     buildInputs = [ gtk2 libpng ];
   
     hardeningDisable = [ "format" ];
  
positive.code:     homepage = "http://gqview.sourceforge.net";
      license = licenses.gpl2;
      platforms = platforms.unix;
    };
  }
  
negative.code: { lib, stdenv, fetchurl, pkg-config, gtk2, libpng }:
  
  stdenv.mkDerivation rec {
    pname = "gqview";
  