ocaml/opam-repository — pull request #2883 by whitequark (2014-10-17 00:15:07+00:00)
Title: +ppx_deriving.1.0 +ppx_deriving_yojson.2.0 +ppx_deriving_protobuf.2.0

Depends on https://github.com/ocaml/opam-repository/pull/2876 and https://github.com/ocaml/opam-repository/pull/2866.