Homebrew/linuxbrew — pull request #111 by mbsullivan (2014-08-05 22:48:52+00:00)
Title: Fix for ruby.rb (prevents a configure error under Linux).

The `MacOS::CLT.installed?` check manifests as a very nondescript configure error.

There may be a more pervasive way of fixing these issues for all formulae, I'm not sure. This works locally for me to allow ruby in be installed.