(rule
 (targets clock.ml clock_stubs.c clock.sexp)
 (deps
  (:select select/select.ml)
  clock_linux.ml
  clock_linux_stubs.c
  clock_windows.ml
  clock_windows_stubs.c
  clock_mach.ml
  clock_mach_stubs.c)
 (action
  (run %{ocaml} %{select} --system %{ocaml-config:system} -o clock)))

(library
 (name clock)
 (modules clock)
 (foreign_stubs
  (language c)
  (names clock_stubs)
  (flags
   (:include clock.sexp))))