`sig
val version_number : string
val config_file : string Stdlib.ref
val is_native : bool
val logdir : string option Stdlib.ref
val default_user : string Stdlib.ref
val default_group : string Stdlib.ref
val mimefile : string Stdlib.ref
val datadir : string Stdlib.ref
val bindir : string Stdlib.ref
val extdir : string Stdlib.ref
val command_pipe : string Stdlib.ref
val builtin_packages : Ocsigen_lib.String.Set.t
end`