This bug has been detected on AIX because the bad pointer used generates a
core.

***** in egg-recent-item.c:

GType
egg_recent_item_get_type (void)
{
        static GType boxed_type = 0;

        if (!boxed_type) {
                boxed_type = g_boxed_type_register_static ("EggRecentItem",
                                        (GBoxedCopyFunc)egg_recent_item_ref,
                                        (GBoxedFreeFunc)egg_recent_item_unref);
        }

        return boxed_type;
}

***** GBoxedCopyFunc type is:

typedef gpointer (*GBoxedCopyFunc)     (gpointer        boxed);

***** and egg_recent_item_ref is:

void
egg_recent_item_ref (EggRecentItem *item)
{
        item->refcount++;
}

***** and in boxed_proxy_collect_value:

value->data[0].v_pointer = node->copy (collect_values[0].v_pointer);

and node->copy() = egg_recent_item_ref()

***** BUT egg_recent_item_ref() returns NOTHING because type is void.

THIS works on linux because the parameter is the value to return and I
think it's stored in the same register.