Fix for mysql2 gem fails to compile with MySQL 5.6.12 on OS X with Homebrew

gistfile1.txt

Blatantly borrowed from StackOverflow

Uninstall MySQL 5.6.12:

brew unlink mysql
brew uninstall mysql
Go to the homebrew directory:

cd /usr/local
Go to version 5.6.10 (you can find a list of versions by running brew versions mysql:

git checkout 48f7e86 Library/Formula/mysql.rb
Then install mysql again:

brew install mysql

And now gem install mysql2 works for me.

I've also installed mysql from source (brew install mysql --build-from-source), but that didn't solve it, but might be part of the solution.