PHP 7 RC3: How to install missing MySQL PDO

I am trying to setup webserver with `PHP 7 RC3` + `Nginx` on `Ubuntu 14.04` (for test purposes). I installed Ubuntu in Vagrant using `ubuntu/trusty64` and PHP 7 RC 3 from Ondřej Surý (https://launchpad.net/~ondrej/+archive/ubuntu/php-7.0). I can not find the way to install `MySQL PDO` (PHP sees `PDO` class but not anything related to MySQL, like `PDO::MYSQL_ATTR_DIRECT_QUERY` etc.) Looks like there is no lib `php7.0-mysql` (by analogy with standard `php5-mysqlnd` and `php7.0-fpm` etc. from Ondřej) Section `PDO` in `phpinfo()`: PDO support enabled PDO drivers no value How can I get it?