* scm/define-event-classes.scm (lambda): use ly:is-listened-event-class

[lilypond.git] / lily / include / translator.hh

diff --git a/lily/include/translator.hh b/lily/include/translator.hh
index f39b122d8b83c91f9eb48d04517ec84a0a0b08f1..575a3fc792051ba5af3367590e3bc3209484433a 100644 (file)
--- a/lily/include/translator.hh
+++ b/lily/include/translator.hh
@@ -16,10 +16,11 @@
 #include "input.hh"
 #include "smobs.hh"
 #include "std-vector.hh"
+#include "protected-scm.hh"
 
 struct Acknowledge_information
 {
-  SCM symbol_;
+  Protected_scm symbol_;
   Engraver_void_function_engraver_grob_info function_;
 };