src_configure() {
        local myconf
        append-flags -fno-lto
        append-cppflags -std=gnu++14
        tc-export CC
        tc-export CXX
        tc-export AR

        local UPS_DRIVERS=""
        for u in $USE ; do
                u2=${u#ups_drivers_}
                [[ "${u}" != "${u2}" ]] && UPS_DRIVERS="${UPS_DRIVERS} ${u2}"
        done
        UPS_DRIVERS="${UPS_DRIVERS# }" UPS_DRIVERS="${UPS_DRIVERS% }"
        myconf="${myconf} --with-drivers=${UPS_DRIVERS// /,}"

        use cgi && myconf="${myconf} --with-cgipath=/usr/share/nut/cgi"

        # TODO: USE flag for sys-power/powerman
        econf \
                --sysconfdir=/etc/nut \
                --datarootdir=/usr/share/nut \
                --datadir=/usr/share/nut \
                --disable-static \
                --with-statepath=/var/lib/nut \
                --with-drvpath=/$(get_libdir)/nut \
                --with-htmlpath=/usr/share/nut/html \
                --with-user=nut \
                --with-group=nut \
                --with-logfacility=LOG_DAEMON \
                --with-dev \
                --with-serial \
                --with-systemdsystemunitdir="$(systemd_get_systemunitdir)" \
                --without-powerman \
                $(use_with cgi) \
                $(use_with ipmi) \
                $(use_with ipmi freeipmi) \
                $(use_with snmp) \
                $(use_with ssl) \
                $(use_with tcpd wrap) \
                $(use_with usb) \
                $(use_with xml neon) \
                $(use_with zeroconf avahi) \
                ${myconf}
}