- System (SCM, Object_key const *);
- System (System const &, int);
+ DECLARE_SCHEME_CALLBACK (footnotes_before_line_breaking, (SCM));
+ DECLARE_SCHEME_CALLBACK (footnotes_after_line_breaking, (SCM));
+ DECLARE_SCHEME_CALLBACK (vertical_skyline_elements, (SCM));
+ DECLARE_SCHEME_CALLBACK (calc_pure_relevant_grobs, (SCM));
+ DECLARE_SCHEME_CALLBACK (height, (SCM));
+ DECLARE_SCHEME_CALLBACK (calc_pure_height, (SCM, SCM, SCM));
+ DECLARE_SCHEME_CALLBACK (get_staves, (SCM));
+ DECLARE_SCHEME_CALLBACK (get_spaceable_staves, (SCM));
+ DECLARE_SCHEME_CALLBACK (get_nonspaceable_staves, (SCM));
+ DECLARE_SCHEME_CALLBACK (get_vertical_alignment, (SCM));
+
+ System (SCM);
+ System (System const &);