http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2009-July/072472.html
---- vhook/imlib2.orig.c 2007-08-07 05:43:50.000000000 +0300
-+++ vhook/imlib2.c 2009-07-07 08:20:59.935830867 +0300
-@@ -84,12 +84,12 @@
+--- ffmpeg-0.5/vhook/imlib2.c~ 2009-07-16 13:32:19.000000000 +0300
++++ ffmpeg-0.5/vhook/imlib2.c 2009-07-16 13:34:17.095314527 +0300
+@@ -85,12 +85,12 @@
AVEvalExpr *eval_r, *eval_g, *eval_b, *eval_a;
char *expr_R, *expr_G, *expr_B, *expr_A;
int eval_colors;
- double x, y;
+ double x, y, X, Y;
char *fileImage;
- struct _CachedImage *cache;
+ struct CachedImage *cache;
Imlib_Image imageOverlaid;
- AVEvalExpr *eval_x, *eval_y;
- char *expr_x, *expr_y;