Add basic scheme programmable engravers.

[lilypond.git] / lily / include / lily-proto.hh

diff --git a/lily/include/lily-proto.hh b/lily/include/lily-proto.hh
index 138328a26be31495a20a83292c8a3f4705c93fd2..19aef0a27aace4b9cfb57822c4220f296647146c 100644 (file)
--- a/lily/include/lily-proto.hh
+++ b/lily/include/lily-proto.hh
@@ -152,6 +152,7 @@ class Relative_octave_music;
 class Repeated_music;
 class Scale;
 class Scheme_hash_table;
+class Scheme_engraver;
 class Score;
 class Score_context;
 class Score_engraver;