systemd_postinst() {
    OPTS=""

    if [ -n "$D" ]; then
        OPTS="--root=$D"
    fi

    if type systemctl >/dev/null 2>/dev/null; then
	    systemctl $OPTS ${SYSTEMD_AUTO_ENABLE} ${SYSTEMD_SERVICE}

	    if [ -z "$D" -a "${SYSTEMD_AUTO_ENABLE}" = "enable" ]; then
		    systemctl enable ${SYSTEMD_SERVICE}
	    fi
    fi
}