--- a/libpurple/protocols/gg/multilogon.c	Sat Jan 04 20:51:18 2014 +0100
+++ b/libpurple/protocols/gg/multilogon.c	Sun Jan 05 00:41:34 2014 +0100
@@ -79,7 +79,7 @@
 		purple_debug_misc("gg", "ggp_multilogon_info: "
 			"session [%s] logged in at %lu\n",
 			info->sessions[i].name,
-			info->sessions[i].logon_time);
+			(unsigned long)info->sessions[i].logon_time);
 	}
 
 	mldata->session_count = info->count;