source code from : http://gitlab.oe5xbl.ampr.org/oe5hpm/dxlAPRS
commit ID        : e6f0309724c9ad7510368b81d24f75ecc32ee367
title            : osi: fix build
Signed-off-by: Hannes Schmelzer <oe5hpm@oevsv.at>
osi: fix build Signed-off-by: Hannes Schmelzer <oe5hpm@oevsv.at>