mxcl/homebrew — pull request #12184 by fbuenemann (2012-05-10 12:55:55+00:00)
Title: Don't use clang with Xcode 4.3.2, fixes #12182

I was experiencing strange crashes during mysqld startup, no matter what version. The gdb backtrace only showed it crashing during dyld loading of shared libs, which was not very helpful.
After looking at the mariadb formula, I saw that it forced llvm for clang build 318, so I ported that change over and mysqld started working again.