mxcl/homebrew — pull request #14075 by willharris (2012-08-09 08:32:24+00:00)
Title: Updated to depend on 'libtool' if using Xcode 4.3 and above

The formula shows dependencies on libtool, but this is not referenced in a depends_on statement. If Xcode >= 4.3, the formula needs a brew version of libtool.