proper findlib reqs for targets that aren't built
proper findlib reqs for targets that aren't built

samoht/ocaml-conduit,djs55/ocaml-conduit,rgrinberg/ocaml-conduit,mirage/ocaml-conduit,djs55/ocaml-conduit,samoht/ocaml-conduit,rgrinberg/ocaml-conduit,avsm/ocaml-conduit