sql/discover.cc:    close(-1) bug
sql/slave.cc:       DBUG_ENTER/RETURN tags
ha_archive.cc:      double-close bug


sql/Makefile.am:
  better mysqld dependencies
sql/discover.cc:
  close(-1) bug
sql/slave.cc:
  DBUG_ENTER/RETURN tags
storage/archive/ha_archive.cc:
  double-close bug