FFMPEG Request: Can you add "--enable-x11grab" as an option?

[Rick Sprague]

Hello,

Can you add "x11grab" as a build option for ffmpeg?  I added it manually 
to CONFIGURE_ARGS but it would be nice to throw it into the option list 
if I decide to build ffmpeg in the future.  I ported Istanbul to FreeBSD 
and found it slow and has poor video quality.  I installed vnc2swf and 
found it uncessesarily convoluted and the video poor as well.

Regards,

Rick