Homebrew/homebrew-dupes — pull request #95 by latreides (2012-09-24 01:41:08+00:00)
Title: Update gcc.rb

GCC does not build "alternate" standard libs when compiled with the --disable-multilib option, such as the libs needed to compile 32bit apps on a 64bit system.

Changing this flag to --enable-multilib (which is the GCC default) solves this issue.

Tested on OS X 10.8.1