--- gtk+-2.16.0/gtk/gtkwindow.c.bak	2009-03-13 15:40:32.000000000 +0200
+++ gtk+-2.16.0/gtk/gtkwindow.c	2009-03-29 15:04:30.199028581 +0300
@@ -8330,9 +8330,9 @@ _gtk_window_set_is_toplevel (GtkWindow *
 			     gboolean   is_toplevel)
 {
   if (GTK_WIDGET_TOPLEVEL (window))
-    g_assert (g_list_find (toplevel_list, window) != NULL);
+    g_assert (g_slist_find (toplevel_list, window) != NULL);
   else
-    g_assert (g_list_find (toplevel_list, window) == NULL);
+    g_assert (g_slist_find (toplevel_list, window) == NULL);
 
   if (is_toplevel == GTK_WIDGET_TOPLEVEL (window))
     return;