anchor.diff:  
       homepage = http://www.nongnu.org/ratpoison/;
   
  -    maintainers = [ stdenv.lib.maintainers.ludo ];
  +    maintainers = [ stdenv.lib.maintainers.ludo stdenv.lib.maintainers.simons ];
       platforms = stdenv.lib.platforms.gnu;  # arbitrary choice
     };
   }
  -
  
positive.code: { stdenv, fetchurl, libX11, inputproto, libXt, libXpm, libXft, fontconfig
  , libXtst, xextproto, readline, libXi, pkgconfig, autoconf, automake }:
  
  stdenv.mkDerivation rec {
    name = "ratpoison-1.4.5";
  
negative.code:        })
      ];
  
    preConfigure = "autoreconf -vf";	# needed because of the patch above
  
    buildInputs =
      [ libX11 inputproto libXt libXpm libXft fontconfig libXtst
        xextproto readline libXi pkgconfig perl autoconf automake
      ];
  
    meta = {
  