static bool read_spacing_spec (SCM spec, Real *dest, SCM sym);
static bool is_spaceable (Grob *g);
static SCM get_details (Grob *g);
+ static vector<Grob *> get_footnote_grobs (SCM lines);
static vsize get_footnote_count (SCM lines);
static SCM get_footnotes_from_lines (SCM lines);
static void add_footnotes_to_lines (SCM lines, int counter, Paper_book *pb);