> You might also want to look at 'cmigrep'.

I did not know this tool. Looks very usefull !

> This is really a packaging issue.  I believe that Debian already ship
> the compiled sources to OCaml as a separate package, mostly for this
> reason.

Ok ; I installed ocaml with inria's Makefile which does not install
them. Apparently, from cmigrep Makefile, it seams that godi have them
installed as well. So they are more commonly installed than I though and
I have no reason to worries any more. 

Thank you !