Compile (b0.B0_driver.Compile)

val build_dir : Conf.t -> driver:t -> B0_std.Fpath.t

val build_log : Conf.t -> driver:t -> B0_std.Fpath.t

val exe : Conf.t -> driver:t -> B0_std.Fpath.t

val compile : 
  Conf.t ->
  driver:t ->
  B0_file.t ->
  (B0_std.Fpath.t, string) result