win = g_new(Window, g_list_length(stacking_list) + 1);
win[0] = screen_support_win;
for (i = 1, it = stacking_list; it; ++i, it = g_list_next(it))
win[i] = window_top(it->data);
win = g_new(Window, g_list_length(stacking_list) + 1);
win[0] = screen_support_win;
for (i = 1, it = stacking_list; it; ++i, it = g_list_next(it))
win[i] = window_top(it->data);