UNAVAIL            65 support/httxt2dbm.c     have_sdbm = UNAVAIL;
UNAVAIL            70 support/httxt2dbm.c     have_gdbm = UNAVAIL;
UNAVAIL            75 support/httxt2dbm.c     have_ndbm = UNAVAIL;
UNAVAIL            80 support/httxt2dbm.c     have_db = UNAVAIL;