sys/ximage/ximagesink.h: Compile fix for FreeBSD. (bug #140268)

Original commit message from CVS:
* sys/ximage/ximagesink.h: Compile fix for FreeBSD. (bug #140268)
* sys/xvimage/xvimagesink.h: same

ChangeLog

+2004-04-16  David Schleef  <ds@schleef.org>
+
+	* sys/ximage/ximagesink.h: Compile fix for FreeBSD. (bug #140268)
+	* sys/xvimage/xvimagesink.h: same
+
 2004-04-16  Thomas Vander Stichele  <thomas at apestaart dot org>
 
 	* ext/gnomevfs/gstgnomevfssink.c: (gst_gnomevfssink_open_file):