From bc873169f115dc15c1598a42d3169d6b5f5eb149 Mon Sep 17 00:00:00 2001
From: ehouse <ehouse@0782aaa5-4710-0410-8820-a96bf9123855>
Date: Mon, 10 Mar 2008 12:02:53 +0000
Subject: [PATCH] Add __attribute__ ((format)) and fix problem it flags.

---
 xwords4/linux/linuxudp.c | 4 ++--
 xwords4/linux/xptypes.h  | 3 ++-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/xwords4/linux/linuxudp.c b/xwords4/linux/linuxudp.c
index f108a1067..399b6ec06 100644
--- a/xwords4/linux/linuxudp.c
+++ b/xwords4/linux/linuxudp.c
@@ -248,8 +248,8 @@ linux_udp_send( const XP_U8* buf, XP_U16 buflen, const CommsAddrRec* addrp,
         }
 
         if ( haveAddress ) {
-            XP_LOGF( "calling sendto: sock=%d; port=%d; ipaddr=%lx", stuff->socket,
-                     ntohs(to.sin_port), to.sin_addr.s_addr );
+            XP_LOGF( "calling sendto: sock=%d; port=%d; ipaddr=%x", 
+                     stuff->socket, ntohs(to.sin_port), to.sin_addr.s_addr );
             nSent = sendto( stuff->socket, buf, buflen, 0, 
                             (struct sockaddr*)&to, sizeof(to) );
             if ( nSent != buflen ) {
diff --git a/xwords4/linux/xptypes.h b/xwords4/linux/xptypes.h
index c8397a0a3..33aa4602c 100644
--- a/xwords4/linux/xptypes.h
+++ b/xwords4/linux/xptypes.h
@@ -61,7 +61,8 @@ typedef unsigned long XP_Time;
 #define XP_LOGF XP_DEBUGF
 
 #ifdef DEBUG
-extern void linux_debugf(char*, ...);
+extern void linux_debugf(const char*, ...)
+    __attribute__ ((format (printf, 1, 2)));
 #define XP_DEBUGF(...) linux_debugf(__VA_ARGS__)
 
 #else