--- sync.h	2004-04-23 14:43:06.000000000 -0400
+++ sync_fixed.h	2008-06-05 04:46:18.937500000 -0400
@@ -254,7 +254,7 @@ _XFUNCPROTOEND
 	Bool signb = XSyncValueIsNegative(b);\
 	((presult)->lo = (a).lo - (b).lo);\
 	((presult)->hi = (a).hi - (b).hi);\
-	if (t>(presult)->lo) (presult)->hi--;\
+	if (t<(presult)->lo) (presult)->hi--;\
 	*poverflow = ((signa == signb) && !(signa == XSyncValueIsNegative(*presult)));\
      }
 #define _XSyncMaxValue(pv) ((pv)->hi = 0x7fffffff, (pv)->lo = 0xffffffff)