sig
val version : string
val is_gui : bool Pervasives.ref
val ocamlc : string
val ocamlopt : string
val datadir : string
val libdir : string
val plugin_dir : string list
val plugin_path : string
val compilation_unit_names : string list
val library_names : string list
val preprocessor : string
val using_default_cpp : bool
val preprocessor_is_gnu_like : bool
val preprocessor_supported_arch_options : string list
val preprocessor_keep_comments : bool
val dot : string option
end