diff -up xf86-video-intel-2.21.15/src/compat-api.h.jx xf86-video-intel-2.21.15/src/compat-api.h
--- xf86-video-intel-2.21.15/src/compat-api.h.jx	2013-05-21 06:15:11.000000000 -0400
+++ xf86-video-intel-2.21.15/src/compat-api.h	2013-10-24 15:30:52.291337300 -0400
@@ -158,4 +158,8 @@ static inline void FreePixmap(PixmapPtr
 	if ((d)->pScreen->SourceValidate) (d)->pScreen->SourceValidate(d, x, y, w, h)
 #endif
 
+#if XORG_VERSION_CURRENT >= XORG_VERSION_NUMERIC(1,14,99,3,0)
+#define DamageUnregister(a, b) DamageUnregister(b)
+#endif
+
 #endif