Finished, 0 targets (0 cached) in 00:00:00.
+ /usr/bin/ocamlfind ocamlc -i t.ml > t.inferred.mli
File "t.ml", line 7, characters 33-87:
Error: Signature mismatch:
       Modules do not match:
         sig
           type elt = S.elt
           type t = S.t
           val empty : t
           val is_empty : t -> bool
           val mem : elt -> t -> bool
           val add : elt -> t -> t
           val singleton : elt -> t
           val remove : elt -> t -> t
           val union : t -> t -> t
           val inter : t -> t -> t
           val diff : t -> t -> t
           val compare : t -> t -> int
           val equal : t -> t -> bool
           val subset : t -> t -> bool
           val iter : (elt -> unit) -> t -> unit
           val fold : (elt -> 'a -> 'a) -> t -> 'a -> 'a
           val for_all : (elt -> bool) -> t -> bool
           val exists : (elt -> bool) -> t -> bool
           val filter : (elt -> bool) -> t -> t
           val partition : (elt -> bool) -> t -> t * t
           val cardinal : t -> int
           val elements : t -> elt list
           val min_elt : t -> elt
           val max_elt : t -> elt
           val choose : t -> elt
           val split : elt -> t -> t * bool * t
           val myfunction : int -> unit
         end
       is not included in
         MySet
Command exited with code 2.