anchor.diff:      homepage = "http://gqview.sourceforge.net";
       license = licenses.gpl2;
       platforms = platforms.unix;
  +    maintainers = with maintainers; [ ];
     };
   }
  
positive.code: { lib, stdenv, fetchurl, pkg-config, gtk2, libpng }:
  
  assert pkg-config != null && gtk2 != null && libpng != null;
  # Note that we cannot just copy gtk's png attribute, since gtk might
  # not be linked against png.
  # !!! assert libpng == gtk2.libpng;
  
  stdenv.mkDerivation rec {
    pname = "gqview";
  
negative.code:   };
  
    nativeBuildInputs = [ pkg-config ];
  
    buildInputs = [ gtk2 libpng ];
  
    hardeningDisable = [ "format" ];
  