extern LINDEX *pos, *offset;
extern char *rec, *srec, *offset_rec;
extern double *prod, *prod1, *r_prod_vec;
extern double **r_prod;

extern struct int_array *sort_intervals;
extern struct interval_list *all_intervals;
extern struct tswitch_list *all_tswitchs;
extern struct flank_list *all_flanks;