void var_clear_vardict (struct variable *);
/* Called by variable.c, defined in dictionary.c. */
-void dict_var_changed (const struct variable *v);
+void dict_var_changed (const struct variable *v, unsigned int what);
void dict_var_resized (const struct variable *v, int old_width);
void dict_var_display_width_changed (const struct variable *v);