Upstream commit https://github.com/acshk/acsccid/commit/5672d821ba96deb6c0c11060e4de0c9dab9b21c7 added "include <iconv.h>" Fixes: http://autobuild.buildroot.net/results/04e/04eac264718a47c550bb48b3c36314751fb4de91/ Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>