anchor.diff:          '';
         };
   
  +      clientConf = mkOption {
  +        type = types.lines;
  +        default = "";
  +        example =
  +          ''
  +            ServerName server.example.com
  +            Encryption Never
  +          '';
  +        description = ''
  +          The contents of the client configuration.
  +          (<filename>client.conf</filename>)
  +        '';
  +      };
  +
         drivers = mkOption {
           type = types.listOf types.path;
           example = literalExample "[ pkgs.splix ]";
  
positive.code:       };
  
      environment.systemPackages = [ cups ];
  
      services.dbus.packages = [ cups ];
  
  
negative.code:   bindir = pkgs.buildEnv {
      name = "cups-progs";
      paths = cfg.drivers;
      pathsToLink = [ "/lib/cups" "/share/cups" "/bin" "/etc/cups" ];
      postBuild = cfg.bindirCmds;
    };
  
  