check button: Use standard padding

diff --git a/gtk/gtkcheckbutton.h b/gtk/gtkcheckbutton.h
index b1e46820de0eb10b76eba668ac3cc17b8e7c6f14..9a7ed350f70b4336ea6cfec296f8ca5efef06741 100644 (file)
--- a/gtk/gtkcheckbutton.h
+++ b/gtk/gtkcheckbutton.h
@@ -55,11 +55,9 @@ struct _GtkCheckButtonClass
 {
   GtkToggleButtonClass parent_class;
 
-  /* Padding for future expansion */
-  void (*_gtk_reserved1) (void);
-  void (*_gtk_reserved2) (void);
-  void (*_gtk_reserved3) (void);
-  void (*_gtk_reserved4) (void);
+  /*< private >*/
+
+  gpointer padding[8];
 };