fix gcc4 warnings under -Wall

darcs-hash:20060927161912-16063-3cb3e0706edc40d34d609b104f5654d53e1232db.gz

libsofia-sip-ua/su/su_addrinfo.c

@@ -932,7 +932,7 @@ void su_freeaddrinfo(su_addrinfo_t *res)
 /** Return string describing address translation error. */
 char const *su_gai_strerror(int errcode)
 {
-  return gai_strerror(errcode);
+	return (char const *)gai_strerror(errcode);
 }
 
 /** Resolve socket address into hostname and service name.

libsofia-sip-ua/tport/tport_type_udp.c

@@ -254,7 +254,7 @@ int tport_recv_dgram(tport_t *self)
       return -1;
   }
   else if (n <= 1) {
-    SU_DEBUG_1(("%s(%p): runt of %u bytes\n", "tport_recv_dgram", self, n));
+    SU_DEBUG_1(("%s(%p): runt of "MOD_ZD" bytes\n", "tport_recv_dgram", self, n));
     msg_destroy(msg), self->tp_msg = NULL;
     return 0;
   }