--- a/order.h	Sun Aug 27 09:50:43 2006 +0000
+++ b/order.h	Sun Aug 27 09:55:54 2006 +0000
@@ -11,6 +11,7 @@
 
 enum {
 	INVALID_ORDER = 0xFFFF,
+	SHARE_FLAG    = 1 << 8,
 };
 
 /* Order types */