Homebrew/homebrew-dupes — pull request #41 by rhysd (2012-06-14 16:09:48+00:00)
Title: GCC 4.7.1 is released.

GCC 4.7.1 is released. http://gcc.gnu.org/gcc-4.7/
I updated formula version from 4.7.0 to 4.7.1.
And now this formula uses llvm-gcc to build because
clang fails computing suffix of libgcc.