Issue 4873/2: Give add_acknowledger SCM &, not Protected_scm &

[lilypond.git] / lily / tie-engraver.cc

diff --git a/lily/tie-engraver.cc b/lily/tie-engraver.cc
index 916c7fecd1d544c32f558c90d057b3955de09c65..1e48db7e9a39a4122e10e3a3b2bf26cdce2da357 100644 (file)
--- a/lily/tie-engraver.cc
+++ b/lily/tie-engraver.cc
@@ -34,8 +34,6 @@
 
 #include "translator.icc"
 
-using std::vector;
-
 /**
    Manufacture ties.  Acknowledge note heads, and put them into a
    priority queue. If we have a TieEvent, connect the notes that finish
@@ -103,7 +101,6 @@ Tie_engraver::Tie_engraver ()
   event_processed_ = false;
 }
 
-IMPLEMENT_TRANSLATOR_LISTENER (Tie_engraver, tie);
 void
 Tie_engraver::listen_tie (Stream_event *ev)
 {
@@ -387,7 +384,13 @@ Tie_engraver::typeset_tie (Spanner *her)
   her->set_bound (RIGHT, right_head);
 }
 
-ADD_ACKNOWLEDGER (Tie_engraver, note_head);
+void
+Tie_engraver::boot ()
+{
+  ADD_LISTENER (Tie_engraver, tie);
+  ADD_ACKNOWLEDGER (Tie_engraver, note_head);
+}
+
 ADD_TRANSLATOR (Tie_engraver,
                 /* doc */
                 "Generate ties between note heads of equal pitch.",