extern int
  pass, badsym, gotep, gotxr, gotlabel, gotnam, opadj,
  hashval, loc, lin, err, endv, endt, lerr, srcfd, eom,
  list, lline, part1, ccnt, lpage, pause, looks, mitable,
  mitndx[], mitnxt[], mitptr[], stmax, stn, *stp;

extern char
 *ep, *lp, *prior, *mt, *mtnext, *mtend, line[],
 expbuf[], srcfn[], objfn[],
 *st, *stend, *stptr, stsym[], mitbuf[];