Imported Upstream version 2.18.0

[lilypond.git] / lily / include / gregorian-ligature-engraver.hh

diff --git a/lily/include/gregorian-ligature-engraver.hh b/lily/include/gregorian-ligature-engraver.hh
index 3ebf372eedb25876ad2dc422c0370ade43d70926..a65d54f67bd8f975db35479413fe618d8c54a9e4 100644 (file)
--- a/lily/include/gregorian-ligature-engraver.hh
+++ b/lily/include/gregorian-ligature-engraver.hh
@@ -33,9 +33,10 @@ protected:
   Gregorian_ligature_engraver ();
 
   virtual void listen_pes_or_flexa (Stream_event *ev);
-  virtual void build_ligature (Spanner *ligature, vector<Grob_info> primitives);
+  virtual void build_ligature (Spanner *ligature,
+                               vector<Grob_info> const &primitives);
   virtual void transform_heads (Spanner *ligature,
-                                vector<Grob_info> primitives) = 0;
+                                vector<Grob_info> const &primitives) = 0;
   void stop_translation_timestep ();
 };