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

[lilypond.git] / lily / grob-pq-engraver.cc

diff --git a/lily/grob-pq-engraver.cc b/lily/grob-pq-engraver.cc
index 45b4ff2b359d7aca819c4ab074145eb9df430e4a..4c388c5145baead6ccea5c20d3503dea18a2fe70 100644 (file)
--- a/lily/grob-pq-engraver.cc
+++ b/lily/grob-pq-engraver.cc
@@ -148,7 +148,12 @@ Grob_pq_engraver::start_translation_timestep ()
     context ()->set_property ("busyGrobs", busy);
 }
 
-ADD_ACKNOWLEDGER (Grob_pq_engraver, grob);
+void
+Grob_pq_engraver::boot ()
+{
+  ADD_ACKNOWLEDGER (Grob_pq_engraver, grob);
+}
+
 ADD_TRANSLATOR (Grob_pq_engraver,
                 /* doc */
                 "Administrate when certain grobs (e.g., note heads) stop"