case "$HOST" in
  (*-musl)
    depends libtirpc --with-libtirpc
    ;;
  (*)
    optional_depends libtirpc \
		     --{with,without}-libtirpc \
		     'use instead of the RPC implementation in the libc'
    ;;
esac &&
optional_depends LIBSASL \
		 --{with,without}-sasl \
		 'for SASL support for LDAP maps' &&
optional_depends openldap \
		 --{with,without}-openldap \
                 'for LDAP map support' &&
optional_depends systemd \
		 --{with,without}-systemd \
		 'for Systemd support'
