[FFmpeg-user] ffmpeg x11grab on Mac 10.8.2

[motty cruz]

Hello
I'm having difficouties install ffmpeg with x11grab, I get the following
error:
ERROR: X11 not found

it:ffmpeg admin$ ./configure --enable-gpl --enable-version3
--enable-nonfree --enable-postproc  --enable-pthreads --enable-libfaa
c --enable-libfaac --enable-libmp3lame --enable-libtheora --enable-libx264
--enable-libxvid --enable-x11grab --enable-libvorbis
ERROR: X11 not found

If you think configure made a mistake, make sure you are using the latest
version from Git.  If the latest version fails, report the problem to the
ffmpeg-user at ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
Include the log file "config.log" produced by configure as this will help
solving the problem


I confirm that I have X11 install:
it:~ admin$ locate Xlib.h
/System/Library/Frameworks/Tk.framework/Versions/8.4/Headers/X11/Xlib.h
/System/Library/Frameworks/Tk.framework/Versions/8.5/Headers/X11/Xlib.h
it:~ admin$


Please help me!!!