--- deliantra/server/include/client.h	2009/11/05 15:57:15	1.89
+++ deliantra/server/include/client.h	2009/11/07 18:30:05	1.90
@@ -293,7 +293,7 @@
 
   void send_packet (const char *buf);
   void send_packet (const char *buf, int len);
-  void send_packet_printf (const char *format, ...);
+  void send_packet_printf (const char *format, ...) attribute ((format (printf, 2, 3)));
   void send_packet (packet &sl);
 
   void send_drawinfo (const char *msg, int flags = NDI_BLACK);