diff -r 6c217475a114 -r f60fcab02bd4 libpurple/protocols/oscar/oscarcommon.h
--- a/libpurple/protocols/oscar/oscarcommon.h	Thu Aug 29 23:01:58 2013 -0700
+++ b/libpurple/protocols/oscar/oscarcommon.h	Fri Aug 30 14:29:45 2013 +0200
@@ -102,6 +102,6 @@
 void oscar_send_file(PurpleConnection *gc, const char *who, const char *file);
 PurpleXfer *oscar_new_xfer(PurpleConnection *gc, const char *who);
 gboolean oscar_offline_message(const PurpleBuddy *buddy);
-gsize oscar_get_max_message_size(PurpleConnection *gc);
+gssize oscar_get_max_message_size(PurpleConversation *conv);
 GList *oscar_actions(PurplePlugin *plugin, gpointer context);
 void oscar_init(PurplePlugin *plugin, gboolean is_icq);