anchor.diff:  
     src = fetchurl {
       url = "mirror://sourceforge/gimp-print/gutenprint-${version}.tar.bz2";
  -    sha256 = "0znwbv51vqf20p4isc3if4hqsgfav21rsqnsz1d8mixlmasy2i27";
  +    sha256 = "1lgf7d9vsszv0bzgsd8j3x5smby1lpk07d8x7isv1sz34y98jk0i";
     };
   
     # gimp, gui is still not working (TODO)
     buildInputs = [ openssl pkgconfig ];
   
     configureFlags = ["--enable-static-genppd"];
  +  NIX_CFLAGS_COMPILE="-include stdio.h";
     
     #preConfigure = ''
     #  configureFlags="--with-cups=$out/usr-cups $configureFlags"
  
positive.code:         name = "gimp2";
          enable = {
            buildInputs = [gimp gimp.gtk];
           installArgs = [ "gimp2_plug_indir=$out/${gimp.name}-plugins" ];
          };
        }
        // {
  
negative.code: , libtiff, libpng, openssl, gimp }:
  
  let
     version = "5.2.7";
     inherit (composableDerivation) edf wwf;
  in
  
  