Add compat macro for gtk_widget_get_realized

The gtk_widget_get_realized method only arrived in GTK 2.20,
so defined a compat macro for earlier GTK
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>
Message-id: 1361805646-6425-13-git-send-email-berrange@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

ui/gtk.c

@@ -84,6 +84,11 @@ static inline void gdk_drawable_get_size(GdkWindow *w, gint *ww, gint *wh)
 }
 #endif
 
+#if !GTK_CHECK_VERSION(2, 20, 0)
+#define gtk_widget_get_realized(widget) GTK_WIDGET_REALIZED(widget)
+#endif
+
+
 typedef struct VirtualConsole
 {
     GtkWidget *menu_item;