RHI Rich, and thanks a lot for your repl.

> Please open a bug in Red Hat's Bugzilla: http://bugzilla.redhat.com/

Actually CentOS has a distinct one at http://bugs.centos.org/
but the account creation page is not accessible: one has to enter a code
that appears in an image...

> You will also need to provide far more details, such as precise
> versions of the packages you are using, and a short case that
> reproduces the error.

I may end up re-compiling Caml by myself. Not very clean but much
faster.

Just out of curiosity: does anybody see what could cause the -lcurses
flag to be present when -custom is specified ?

Best wishes and thanks again for helping,
Sébastien.