Hello,

The API function "rule" for Ocamlbuild has an argument "~tags" which 
seems to be used, in the file "ocaml_specific.ml" of the Ocamlbuild 
source, to restrict the rule to targets using specific tags.

However, when I tried to add a rule in my plugin, the rule is called 
whatever the tags of the file may be.

How can I control when a rule will be triggered using tags? I need to 
restrict my rule to files that use tag "test", for instance.

Thanks,

	Romain Bardou