anchor.diff:          ";
         };
         
  -      extraChrootPaths = mkOption {
  -        default = [];
  -	example = ["/var/dist"];
  -	description = ''
  -	  Extra paths to include in chroot. May be useful if you build
  -	  from private repository mirrors to avoid extra checksumming 
  -	  and copying to store.
  -	'';
  -      };
  -
         distributedBuilds = mkOption {
           default = false;
           description = "
  
positive.code:         ";
        };
  
        extraOptions = mkOption {
          default = "";
          example = "
  
negative.code:                 build-users-group = nixbld
                  build-max-jobs = ${toString (config.nix.maxJobs)}
                  build-use-chroot = ${if config.nix.useChroot then "true" else "false"}
                  build-chroot-dirs = ${toString config.nix.chrootDirs} $(echo $extraPaths)
                  $extraOptions
                  END
                '';
  