diff -up gdm-2.25.2/gui/simple-greeter/gdm-chooser-widget.c.maybe-work-around-gcc-bug gdm-2.25.2/gui/simple-greeter/gdm-chooser-widget.c
--- gdm-2.25.2/gui/simple-greeter/gdm-chooser-widget.c.maybe-work-around-gcc-bug	2009-03-12 15:19:51.102176587 -0400
+++ gdm-2.25.2/gui/simple-greeter/gdm-chooser-widget.c	2009-03-12 15:20:57.411172890 -0400
@@ -2311,6 +2311,7 @@ stop_timer (GdmChooserWidget    *widget,
         GtkTreeModel *model;
         GtkTreePath  *path;
         GtkTreeIter   iter;
+        volatile double zero = 0.0;
 
         model = GTK_TREE_MODEL (widget->priv->list_store);
 
@@ -2320,12 +2321,12 @@ stop_timer (GdmChooserWidget    *widget,
 
         gtk_list_store_set (widget->priv->list_store, &iter,
                             CHOOSER_TIMER_START_TIME_COLUMN,
-                            0.0, -1);
+                            zero, -1);
         gtk_list_store_set (widget->priv->list_store, &iter,
                             CHOOSER_TIMER_DURATION_COLUMN,
-                            0.0, -1);
+                            zero, -1);
         gtk_list_store_set (widget->priv->list_store, &iter,
-                            CHOOSER_TIMER_VALUE_COLUMN, 0.0, -1);
+                            CHOOSER_TIMER_VALUE_COLUMN, zero, -1);
 
         widget->priv->number_of_active_timers--;
         if (widget->priv->number_of_active_timers == 0) {