Several of my colleagues and I have recently upgraded from MySQL 5.5 to MySQL 5.6 using homebrew on our Macs to test locally before upgrading our servers. Since this upgrad
We found that using the following fixes this for us:
brew install mysql --use-llvm
This is on a rails 2.3 ontop of REE (1.8.7) in rbenv on OSX 10.8. YMMV