Bugzilla Bug 222079

Zoneminder utilises the socket_create PHP function which is only available if
PHP is emerged with the "sockets" USE flag.  Without this flag, Pan/Tilt/Zoom
(PTZ) functions within the application do not work (a silent failure unless PHP
logging is turned on)

This flag should be added as a dependency or at least a postinstall warning
included that PTZ functionality will not work if PHP is not re-emerged with
this USE flag enabled.

Incidentally, Zoneminder also requires PHP be emerged with the "apache2" USE
flag but that's far more obvious than the sockets flag.

Reproducible: Always

Steps to Reproduce:
1. Emerge PHP without the sockets USE flag (note: This is the default in
2008.0)
2. Emerge zoneminder
3. Configure zoneminder
4. Attempt to control a PTZ camera and check PHP logging

Actual Results:  
[14-May-2008 22:14:41] PHP Fatal error:  Call to undefined function
socket_create() in /var/www/zoneminder/htdocs/zm_actions.php on line 845

Thanks! in cvs.