-ADD_ACKNOWLEDGER (Staff_collecting_engraver, staff_symbol);
-ADD_END_ACKNOWLEDGER (Staff_collecting_engraver, staff_symbol);
+
+void
+Staff_collecting_engraver::boot ()
+{
+ ADD_ACKNOWLEDGER (Staff_collecting_engraver, staff_symbol);
+ ADD_END_ACKNOWLEDGER (Staff_collecting_engraver, staff_symbol);
+}