Homebrew/homebrew — pull request #33725 by tdsmith (2014-10-30 06:01:05+00:00)
Title: pypy: build cffi extensions in lib_pypy

Fixes a problem reported on IRC where these modules can't be imported by
a different user than the user that installed Homebrew because building
the cffi extensions writes files to the Cellar. Pypy's build process
normally generates these but they get cleaned by Homebrew.