MatthewCallis/homebrew-other — pull request #1 by mistydemeo (2012-09-25 20:55:46+00:00)
Title: Specify source of gcc

If the user didn't already `brew tap homebrew/dupes`, they'd just get an error message about no formula for `gcc` existing; specifying the source instead means they'll be told they need to tap it, which is much better!