- static SCM brew_molecule (SCM);
- static SCM offset_callback (SCM element, SCM axis);
- static void set_interface (Score_element*);
- static bool has_interface (Score_element*);
+ DECLARE_SCHEME_CALLBACK (brew_molecule, (SCM ));
+ DECLARE_SCHEME_CALLBACK (offset_callback, (SCM element, SCM axis));
+
+ static bool has_interface (Grob*);