AVAIL              63 support/httxt2dbm.c     have_sdbm = AVAIL;
AVAIL              68 support/httxt2dbm.c     have_gdbm = AVAIL;
AVAIL              73 support/httxt2dbm.c     have_ndbm = AVAIL;
AVAIL              78 support/httxt2dbm.c     have_db = AVAIL;