Issue 4870: [midi2ly] Delay import of 'midi' module.

[lilypond.git] / lily / span-arpeggio-engraver.cc

diff --git a/lily/span-arpeggio-engraver.cc b/lily/span-arpeggio-engraver.cc
index f66c8770b52333c9bbc23c19d9d3c01bbeb510a8..231e484409040d2f2d50a01ba5b94c4121c3c39d 100644 (file)
--- a/lily/span-arpeggio-engraver.cc
+++ b/lily/span-arpeggio-engraver.cc
@@ -125,8 +125,13 @@ Span_arpeggio_engraver::stop_translation_timestep ()
   note_columns_.clear ();
 }
 
-ADD_ACKNOWLEDGER (Span_arpeggio_engraver, arpeggio);
-ADD_ACKNOWLEDGER (Span_arpeggio_engraver, note_column);
+void
+Span_arpeggio_engraver::boot ()
+{
+  ADD_ACKNOWLEDGER (Span_arpeggio_engraver, arpeggio);
+  ADD_ACKNOWLEDGER (Span_arpeggio_engraver, note_column);
+}
+
 ADD_TRANSLATOR (Span_arpeggio_engraver,
                 /* doc */
                 "Make arpeggios that span multiple staves.",