-ADD_ACKNOWLEDGER (Beam_collision_engraver, note_head);
-ADD_ACKNOWLEDGER (Beam_collision_engraver, stem);
-ADD_ACKNOWLEDGER (Beam_collision_engraver, accidental);
-ADD_ACKNOWLEDGER (Beam_collision_engraver, clef);
-ADD_ACKNOWLEDGER (Beam_collision_engraver, key_signature);
-ADD_ACKNOWLEDGER (Beam_collision_engraver, time_signature);
-ADD_ACKNOWLEDGER (Beam_collision_engraver, octavate_eight);
-ADD_ACKNOWLEDGER (Beam_collision_engraver, flag);
-ADD_ACKNOWLEDGER (Beam_collision_engraver, beam);
+
+void
+Beam_collision_engraver::boot ()
+{
+ ADD_ACKNOWLEDGER (Beam_collision_engraver, note_head);
+ ADD_ACKNOWLEDGER (Beam_collision_engraver, stem);
+ ADD_ACKNOWLEDGER (Beam_collision_engraver, accidental);
+ ADD_ACKNOWLEDGER (Beam_collision_engraver, clef);
+ ADD_ACKNOWLEDGER (Beam_collision_engraver, key_signature);
+ ADD_ACKNOWLEDGER (Beam_collision_engraver, time_signature);
+ ADD_ACKNOWLEDGER (Beam_collision_engraver, clef_modifier);
+ ADD_ACKNOWLEDGER (Beam_collision_engraver, flag);
+ ADD_ACKNOWLEDGER (Beam_collision_engraver, beam);
+}