I get this rather weird problem while I try to install Drupal 6.22. The web server is nginx+ php5-fpm which I've used with great success before and according to the Ubuntu package manager, php5-mysql is already the newest version (however it does not appear in phpinfo() page). The configuration page is in /etc/php5/fpm/php.ini. Here is the error message:
In your ./sites/default/settings.php file you have configured Drupal to use a mysql server, however your PHP installation currently does not support this database type.
I have created the database and permission.The database declaration line in settings.php seem to be correct.
How can I enable MySQL support and solve this problem?