ocaml/oasis — pull request #12 by Chris00 (2013-02-16 11:39:18+00:00)
Title: Locate "topfind" when using opam "system" compiler.

When using opam with the "system" compiler the "topfind" file is not
found by the toplevel. However, the environment variable
$OCAML_TOPLEVEL_PATH is set. See
https://github.com/OCamlPro/opam-repository/issues/34