While trying to update libloc to 0.9.15 in IPFire 2.x:

libloc (0.9.15)                                                                                                                                                                                                          [       15 ][ FAIL ]

    /usr/bin/install -c -m 644 $lang.gmo.m $dir/libloc.mo.m; \
    echo "installing $lang.gmo.m as $dir/libloc.mo.m"; \
    else \
    if test -r ./$lang.gmo.m ; then \
    /usr/bin/install -c -m 644 ./$lang.gmo.m \
    $dir/libloc.mo.m; \
    echo "installing ./$lang.gmo.m as" \
    "$dir/libloc.mo.m"; \
    else \
    true; \
    fi; \
    fi; \
    done
    installing de.gmo as /usr/share/locale/de/LC_MESSAGES/libloc.mo
    make[1]: Leaving directory '/usr/src/libloc-0.9.15'
    # Copy database to correct location.
    cd /usr/src/libloc-0.9.15 && cp -avf /usr/src/cache/location-2022-09-26.db.xz /var/lib/location/database.db.xz
    '/usr/src/cache/location-2022-09-26.db.xz' -> '/var/lib/location/database.db.xz'
    # Uncompress database.
    cd /usr/src/libloc-0.9.15 && rm -f /var/lib/location/database.db
    cd /usr/src/libloc-0.9.15 && xz -d /var/lib/location/database.db.xz
    # Create directory for ipset databases.
    cd /usr/src/libloc-0.9.15 && mkdir -pv /var/lib/location/ipset
    # Launch location util and export all locations in ipset compatible format.
    cd /usr/src/libloc-0.9.15 && /usr/bin/location export \
    --directory=/var/lib/location/ipset \
    --family=ipv4 \
    --format=ipset
    'IpsetOutputWriter' object has no attribute 'tag'
    make: *** [libloc:94: /usr/src/log/libloc-0.9.15] Error 1

The error does not occur if "--directory=x" is omitted, however, this is required for IPFire, since we need these ipset files to be exported to a certain directory.