anchor.diff:        '';
   
     };
  -  
   }
  
positive.code:   # cupsd.conf tells cupsd to use this tree.
    bindir = pkgs.buildEnv {
      name = "cups-progs";
      paths =  cfg.drivers;
      pathsToLink = [ "/lib/cups" "/share/cups" ];
      postBuild =  ''
        ${cfg.bindirCmds}
      '';
    };
  
  in
  
negative.code:         ErrorLog ${logDir}/error_log
          PageLog ${logDir}/page_log
  
          TempDir ${cfg.tempDir}
  
          Browsing On
          BrowseOrder allow,deny
  