Module Compenv
val output_prefix : string -> string
val extract_output : string option -> string
val default_output : string option -> string
val print_version_and_library : string -> 'a
val print_version_string : unit -> 'a
val print_standard_library : unit -> 'a
val fatal : string -> 'a
val get_objfiles : unit -> string list
type readenv_position =
| Before_args
| Before_compile
| Before_link