> $ cat foo.ml module T = struct  [@@warning "-32"]  type t = {a:int} > [@@deriving fields] end include T > > However I get a syntax error, even though this follows the example of > the manual in section 7.221[1]. Is this a bug in the manual? I think that's a typo in the manual: it should be [@@@warning "-32"] (with *three* at symbols). Regards, Leo Links: 1. http://caml.inria.fr/pub/docs/manual-ocaml/extn.html#sec242