There is a patch to byterun/Makefile in 3.09.0 which builds libcamlrun.so: http://annexia.org/tmp/libcamlrun.so.patch I've asked if this can be applied to upstream OCaml, but I don't know what the result of that request will be. Rich. -- Richard Jones, CTO Merjis Ltd. Merjis - web marketing and technology - http://merjis.com Team Notepad - intranets and extranets for business - http://team-notepad.com