mxcl/homebrew — pull request #13037 by samueljohn (2012-06-26 13:03:10+00:00)
Title: Fix #13012 properly

Undoing parts of the hot fix 78b9e8548e771a59e382e6f13339664ec5498391.

The only thing missing was to check for `system "/usr/bin/xcrun -find make 1>/dev/null 2>&1"`
and then it's safe to call locate.