> I have a problem compiling mlgmp
>     ocamlc -g -custom gmp.cma test_suite.cmo -o test_suite
> which results into
>     gcc  -o 'test_suite' -I'/opt/local/lib/ocaml'
> /tmp/camlprimd07b82.c  '-L/opt/local/lib/ocaml' '-lmlgmp' '-L.' \
>       '-L' '-Wl,-rpath' '-lmpfr' '-lgmp' '-L/opt/local/lib/ocaml/gmp'
> -lcamlrun -lcurses -lpthread

> which seems to suggest there is a bug in ocamlc (at least in the Mac OS
> X version).

I believe the problem comes from the way your configured mlgmp in your
Mac OS X build.  If I guess correctly, in Makefile you left GMP_LIBDIR
empty and kept the Linux definition of RLIBFLAGS instead of selecting
the MacOS X one.  You will be readily excused, as mlgmp's
configuration is hardly described.  But if you have further problems,
may I suggest you take them with the author of mlgmp first?

- Xavier Leroy