anchor.diff:          description = ''
             Additional commands executed while creating the directory
             containing the CUPS server binaries.
  +        '';
  +      };
  +
  +      cupsdConf = mkOption {
  +        default = "";
  +        description = ''
  +          The contents of the configuration file of the CUPS daemon
  +          (<filename>cupsd.conf</filename>).
           '';
         };
   
  
positive.code:             ${modprobe}/sbin/modprobe usblp || true
            '';
  
          exec = "${cups}/sbin/cupsd -c ${cupsdConfig} -F";
        };
  
    };
    
  
negative.code:       ln -s ${pkgs.ghostscript}/lib/cups/filter/* $out/lib/cups/filter/
        ${cfg.bindirCmds}
      ''; # */
  
  in
  
  