[gtk+] Avoid a warning when finalizing toolbars

[Matthias Clasen <matthiasc src gnome org>]

commit dd678ac323b81e67bb1dea488f2123efee7e3500
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Dec 1 23:32:35 2010 -0500

    Avoid a warning when finalizing toolbars
    
    Recent changes cause disposing menus to emit ::deactivate. So better
    disconnect the deactivate handler first.

 gtk/gtktoolbar.c |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtktoolbar.c b/gtk/gtktoolbar.c
index 007d039..5d914fa 100644
--- a/gtk/gtktoolbar.c
+++ b/gtk/gtktoolbar.c
@@ -3125,8 +3125,12 @@ gtk_toolbar_finalize (GObject *object)
   g_timer_destroy (priv->timer);
   
   if (priv->menu)
-    gtk_widget_destroy (GTK_WIDGET (priv->menu));
-  
+    {
+      g_signal_handlers_disconnect_by_func (priv->menu,
+                                            menu_deactivated, toolbar);
+      gtk_widget_destroy (GTK_WIDGET (priv->menu));
+    }
+
   if (priv->idle_id)
     g_source_remove (priv->idle_id);