static Interval get_spanned_interval (Grob *);
static void add_bar (Grob *, Grob *);
static void evaluate_glyph (Grob *);
+ static void notify_grobs_of_my_existence (Grob *);
DECLARE_SCHEME_CALLBACK (width, (SCM smob));
DECLARE_SCHEME_CALLBACK (print, (SCM));
DECLARE_SCHEME_CALLBACK (calc_glyph_name, (SCM));