anchor.diff:      url = "http://www.bchemnet.com/suldr/driver/UnifiedLinuxDriver-${version}.tar.gz";
       sha256 = "1vv3pzvqpg1dq3xjr8161x2yp3v7ca75vil56ranhw5pkjwq66x0";
     };
  +
  +  nativeBuildInputs = [ patchPpdFilesHook ];
   
     dontPatchELF = true;
     dontStrip = true;
  
positive.code: # }
  # (This advice was tested on the 1st November 2016.)
  
  { lib, stdenv, fetchurl, cups, libusb-compat-0_1 }:
  
  # Do not bump lightly! Visit <http://www.bchemnet.com/suldr/supported.html>
  # to see what will break when upgrading. Consider a new versioned attribute.
  
negative.code:     mkdir -p $out/share/cups/model/samsung
      cd -
      cd ../noarch/at_opt/share/ppd
      cp -r ./* $out/share/cups/model/samsung
    '';
  
    ppdFileCommands = [ "pstosecps" "pstospl" "rastertospl" ];
  
    meta = with lib; {
      description = "Samsung's Linux printing drivers; includes binaries without source code";
  