mxcl/homebrew — pull request #12741 by thoughtpolice (2012-06-11 00:39:22+00:00)
Title: Add ocaml svn and development versions (4.00.0+beta2)

I needed to change the `md5` field to a `sha1` because otherwise the install process seemed to get the hashes confused or something. I may file another bug.

Other than that I've tested installing this from source with `--source` (3.12.1), `--devel` (4.00.0+beta2) and `--HEAD` from SVN, all on Lion. So I think it's good to go.