[SCM] libav/experimental: Check Xfixes.h header presence before enabling x11grab. This fixes compilation when lib is present but not header.

[siretart at users.alioth.debian.org]

The following commit has been merged in the experimental branch:
commit 0a04566120548cdcb6695dedffc55cf967e422d3
Author: Baptiste Coudurier <baptiste.coudurier at gmail.com>
Date:   Mon Nov 30 21:43:03 2009 +0000

    Check Xfixes.h header presence before enabling x11grab.
    This fixes compilation when lib is present but not header.
    
    Originally committed as revision 20673 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/configure b/configure
index 7f562e8..bdb723a 100755
--- a/configure
+++ b/configure
@@ -2476,6 +2476,7 @@ enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
 enabled x11grab                         &&
 check_header X11/Xlib.h                 &&
 check_header X11/extensions/XShm.h      &&
+check_header X11/extensions/Xfixes.h    &&
 check_func XOpenDisplay -lX11           &&
 check_func XShmCreateImage -lX11 -lXext &&
 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes

-- 
Libav/FFmpeg packaging