Definition Gprog : funspecs :=
      ltac:(with_library prog [minimum_spec]).

(* Specifications: *)
Lemma body_min: semax_body Vprog Gprog f_minimum minimum_spec.
Lemma body_min': semax_body Vprog Gprog f_minimum minimum_spec.
Lemma body_min2: semax_body Vprog Gprog f_minimum minimum_spec2.