php-mysql not installed -> installation just dies without any error-message

Hey,

when php-mysql is not installed (properly) the installation-script just dies:

Code:

test:~/ispconfig3_install/install# php5 -q install.php 


--------------------------------------------------------------------------------
 _____ ___________   _____              __ _       
|_   _/  ___| ___ \ /  __ \            / _(_)      
  | | \ `--.| |_/ / | /  \/ ___  _ __ | |_ _  __ _ 
  | |  `--. \  __/  | |    / _ \| '_ \|  _| |/ _` |
 _| |_/\__/ / |     | \__/\ (_) | | | | | | | (_| |
 \___/\____/\_|      \____/\___/|_| |_|_| |_|\__, |
                                              __/ |
                                             |___/ 
--------------------------------------------------------------------------------


>> Initial configuration  

Operating System: Debian Lenny/Sid or compatible

    Following will be a few questions for primary configuration so be careful.
    Default values are in [brackets] and can be accepted with <ENTER>.
    Tap in "quit" (without the quotes) to stop the installer.


Select language (en,de) [en]: 

Installation mode (standard,expert) [standard]: 

Full qualified hostname (FQDN) of the server, eg server1.domain.tld  [test]: 

MySQL server hostname [localhost]: 

MySQL root username [root]:    

MySQL root password []: foobar

MySQL database to create [dbispconfig]: 

MySQL charset [utf8]: 

test:~/ispconfig3_install/install#

According the code:

Code:

			//* Initialize the MySQL server connection
			if(@mysql_connect($tmp_mysql_server_host, $tmp_mysql_server_admin_user, $tmp_mysql_server_admin_password)) {
				$conf['mysql']['master_host'] = $tmp_mysql_server_host;
				$conf['mysql']['master_admin_user'] = $tmp_mysql_server_admin_user;
				$conf['mysql']['master_admin_password'] = $tmp_mysql_server_admin_password;
				$conf['mysql']['master_database'] = $tmp_mysql_server_database;
				$finished = true;
			} else {
				swriteln($inst->lng('Unable to connect to mysql server').' '.mysql_error());
			}

the real error-message is suppressed (with the '@') but the error should be handled (it should show up 'Unable to connect to mysql server').
Unfortunately, in this case, <mysql_connect> seems to not return <false>.

Removing the '@', the installation script shows me the following:

Code:

[..]
Fatal error: Call to undefined function mysql_connect() in /root/ispconfig3_install/install/install.php on line 122

Greetings,

[email protected]