anchor.diff:        # Idem for /etc.
         "PAMDIR=$(out)/etc/pam.d"
         "DBUSDIR=$(out)/etc/dbus-1"
  -      "INITDIR=$(out)/etc/rc.d"
         "XINETD=$(out)/etc/xinetd.d"
         "SERVERROOT=$(out)/etc/cups"
         # Idem for /usr.
  
positive.code:       # Work around a Makefile bug.
        "CUPS_PRIMARY_SYSTEM_GROUP=root"
      ];
  
    postInstall = ''
        # Delete obsolete stuff that conflicts with cups-filters.
  
negative.code: 
  ### IMPORTANT: before updating cups, make sure the nixos/tests/printing.nix test
  ### works at least for your platform.
  let version = "2.1.3"; in
  
  with stdenv.lib;
  stdenv.mkDerivation {
  