OCamlPro/opam-repository — pull request #307 by smondet (2013-01-18 22:50:10+00:00)
Title: Make dbm optional for OCsigenserver

This is a revival of
https://github.com/OCamlPro/opam-repository/pull/235
on top of OCP's `master` and tested with opam 0.9.1.