_tr_tally_dist
_tr_tally_dist(s, s->strstart -1 - s->prev_match,
_tr_tally_dist(s, 1, s->match_length - MIN_MATCH, bflush);
_tr_tally_dist(s, s->strstart -1 - s->prev_match,
_tr_tally_dist(s, 1, s->match_length - MIN_MATCH, bflush);
_tr_tally_dist(s, s->strstart -1 - s->prev_match,
_tr_tally_dist(s, 1, s->match_length - MIN_MATCH, bflush);