dh_ocaml call without directories ?

[Sven LUTHER <luther@dpt-info.u-strasbg.fr>]

Hello, ...

I have fixed ocaml-ldconf so it will add some files by default, but as a
result ocaml-base doesn't have a directory specified anymore, and thus
dh_ocamlld doesn't fill the the postinst anymore and the ld.conf file
with the fixed default directories does not get built anymore.

I will workaround this by providing a ld.conf file with the package, but
i think it would be better to fix dh_ocamlld so it will call
ocaml-ldconf in the postinst even if there is no directory involved.

Friendly,

Sven Luther