2008-12-30 gem install mysqlでエラーが出る件 rails-2.2からgem install mysqlでいれないとだめだよっていうのを本格対応。 bash-3.2$ sudo gem install mysql -- --with-mysql-config Building native extensions. This could take a while... Successfully installed mysql-2.7 1 gem installed bash-3.2$ でOKっす!