$OpenBSD: patch-configure_ac,v 1.2 2010/07/22 19:21:31 ajacoutot Exp $
--- configure.ac.orig	Thu Jul 15 21:15:23 2010
+++ configure.ac	Wed Jul 21 21:17:57 2010
@@ -296,7 +296,7 @@ else
                 \$(top_builddir)/gst-libs/ext/ffmpeg/libavutil/libavutil.a"
 
   FFMPEG_SUBDIRS=gst-libs
-  AC_DEFINE(HAVE_AVI_H)
+  AC_DEFINE(HAVE_AVI_H, [], [whether or not avi.h is installed])
   AC_DEFINE([FFMPEG_SOURCE], ["local snapshot"], [Describes where the FFmpeg libraries come from.])
 
   AC_ARG_WITH(ffmpeg-extra-configure, 
