Homebrew/homebrew — pull request #31444 by andreausu (2014-08-08 09:21:33+00:00)
Title: Better MySQL dependency detection in percona-toolkit

The percona-toolkit formula was stricly depending on mysql making it impossible to install when a user had maridb or percona-server installed instead of the standard mysql.

It now detects whatever mysql executable exists on the system before requiring the mysql dependency.