commit a65613bf0a507a226c172bb6f503e27532efb0fa
Author: Vincent Untz <vuntz@gnome.org>
Date:   Thu Sep 8 19:01:35 2011 +0200

    GnomeWallClock: Remove the date/time source on dispose
    
    We don't do it in finalize since the dispose handler needs the objects
    that are being disposed.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=658583

diff --git a/libgnome-desktop/gnome-wall-clock.c b/libgnome-desktop/gnome-wall-clock.c
index 49437d8..167619d 100644
--- a/libgnome-desktop/gnome-wall-clock.c
+++ b/libgnome-desktop/gnome-wall-clock.c
@@ -84,6 +84,11 @@ gnome_wall_clock_dispose (GObject *object)
 {
 	GnomeWallClock *self = GNOME_WALL_CLOCK (object);
 
+	if (self->priv->clock_update_id) {
+		g_source_remove (self->priv->clock_update_id);
+		self->priv->clock_update_id = 0;
+	}
+
 	if (self->priv->tz_monitor != NULL) {
 		g_object_unref (self->priv->tz_monitor);
 		self->priv->tz_monitor = NULL;