extern int         nEO;
  extern int         nsymbols;
  extern int         nparams;
  extern int         ndims;
  extern int         datatype;
  extern int         nvalues;
  extern int         parser_start_type;
  extern int         Lineno;
  extern int         Tokenpos;
  extern char       *Linebuf;
  extern char       *currentfilename;
  extern PDT_struct *pdt_info;
  extern PCT_struct *pct_info;
  extern ST_entry   *current_pct;
  extern void        s3_add_pct(ST_entry *entry);
  extern ST_entry   *s3_get_next_pct();