FAILED (missing ocamlfind dependency "wikidoc") opam => [build shared-memory-ring.0.4.0 OCamlPro/opam-repository:master with 4.01.0 on Linux (ppc64)]

/github/OCamlPro/opam-repository/task/16399
FAILED (no external dependencies: "libffi") opam => [build ctypes.0.1 OCamlPro/opam-repository:master with 4.01.0 on Linux (armv5tel)]

/github/OCamlPro/opam-repository/task/16340