Alas there is no way to do that in a clean way for the moment.

Excerpts from Erick Tryzelaar's message of Mon Aug 06 11:50:49 +0200 2007:
> I'm finishing up getting ocamlbuild to work with the dypgen parser, but I
> can't yet figure out how to get ocamlbuild to automatically list the .ml
> and .mli of the .dyp parser as microbes to be cleaned in sanitize.sh. It
> doesn't look like the hygiene or fda modules are exposed in the plugin. Is
> there any way to do it other than manually replicate the functionality in
> the {Before,After}_hygiene dispatch hook?
> 
> -e
> 

-- 
Nicolas Pouillard aka Ertai