OL_ARG_ENABLE(ldap,[ --enable-ldap enable ldap backend],
no, [no yes mod], ol_enable_backends)dnl
OL_ARG_ENABLE(mdb,[ --enable-mdb enable mdb database backend],
OL_ARG_ENABLE(ldap,[ --enable-ldap enable ldap backend],
no, [no yes mod], ol_enable_backends)dnl
OL_ARG_ENABLE(mdb,[ --enable-mdb enable mdb database backend],