--- a/libpurple/protocols/gg/libgadu-events.c Mon Apr 08 14:55:30 2013 +0200 +++ b/libpurple/protocols/gg/libgadu-events.c Mon Apr 08 16:48:19 2013 +0200 @@ -38,8 +38,8 @@ int user_idx; gboolean is_update; - purple_debug_info("gg", "GG_EVENT_USER_DATA [type=%d, user_count=%zu]\n", - data->type, data->user_count); + purple_debug_info("gg", "GG_EVENT_USER_DATA [type=%d, user_count=%" + G_GSIZE_FORMAT "]\n", data->type, data->user_count); /* type =