- DECLARE_SCHEME_CALLBACK (print, (SCM ));
- // DECLARE_SCHEME_CALLBACK (after_line_breaking, (SCM));
- static bool has_interface (Grob *);
- // DECLARE_SCHEME_CALLBACK (set_spacing_rods, (SCM ));
+ DECLARE_SCHEME_CALLBACK (print, (SCM));
+ DECLARE_SCHEME_CALLBACK (calc_cross_staff, (SCM));
+ DECLARE_GROB_INTERFACE();