I had that same problem - the key is here:

t/80procs........ ....install_dri ver(mysql) failed: Can't load '/Users/thomas/Downloads/fresh/DBD-mysql-4.005/blib/arch/auto/DBD/mysql/mysql.bundle' for module DBD::mysql: dlopen(/Users/thomas/Downloads/fresh/DBD-mysql-4.005/blib/arch/auto/DBD/mysql/mysql.bundle, 2): Library not loaded: /usr/local/mysql/lib/mysql/libmysqlclient. 15.dylib
Referenced from: /Users/thomas/Downloads/fresh/DBD-mysql-4.005/blib/arch/auto/DBD/mysql/mysql.bundle...