[ "$EXTERNAL_FREETZ_PACKAGE_SCANBUTTOND" == "y" ] && EXTERNAL_FILES+=" /usr/bin/scanbuttond ${FREETZ_LIBRARY_DIR}/libscanbtnd-interface_usb.so.1.0.0"
[ "$EXTERNAL_FREETZ_PACKAGE_SCANBUTTOND_BACKEND_artec_eplus48u" == "y" ] && EXTERNAL_FILES+=" ${FREETZ_LIBRARY_DIR}/libscanbtnd-backend_artec_eplus48u.so.1.0.0"
[ "$EXTERNAL_FREETZ_PACKAGE_SCANBUTTOND_BACKEND_epson" == "y" ] && EXTERNAL_FILES+=" ${FREETZ_LIBRARY_DIR}/libscanbtnd-backend_epson.so.1.0.0"
[ "$EXTERNAL_FREETZ_PACKAGE_SCANBUTTOND_BACKEND_genesys" == "y" ] && EXTERNAL_FILES+=" ${FREETZ_LIBRARY_DIR}/libscanbtnd-backend_genesys.so.1.0.0"
[ "$EXTERNAL_FREETZ_PACKAGE_SCANBUTTOND_BACKEND_gt68xx" == "y" ] && EXTERNAL_FILES+=" ${FREETZ_LIBRARY_DIR}/libscanbtnd-backend_gt68xx.so.1.0.0"
[ "$EXTERNAL_FREETZ_PACKAGE_SCANBUTTOND_BACKEND_hp3500" == "y" ] && EXTERNAL_FILES+=" ${FREETZ_LIBRARY_DIR}/libscanbtnd-backend_hp3500.so.1.0.0"
[ "$EXTERNAL_FREETZ_PACKAGE_SCANBUTTOND_BACKEND_hp3900" == "y" ] && EXTERNAL_FILES+=" ${FREETZ_LIBRARY_DIR}/libscanbtnd-backend_hp3900.so.1.0.0"
[ "$EXTERNAL_FREETZ_PACKAGE_SCANBUTTOND_BACKEND_hp5590" == "y" ] && EXTERNAL_FILES+=" ${FREETZ_LIBRARY_DIR}/libscanbtnd-backend_hp5590.so.1.0.0"
[ "$EXTERNAL_FREETZ_PACKAGE_SCANBUTTOND_BACKEND_meta" == "y" ] && EXTERNAL_FILES+=" ${FREETZ_LIBRARY_DIR}/libscanbtnd-backend_meta.so.1.0.0"
[ "$EXTERNAL_FREETZ_PACKAGE_SCANBUTTOND_BACKEND_mustek" == "y" ] && EXTERNAL_FILES+=" ${FREETZ_LIBRARY_DIR}/libscanbtnd-backend_mustek.so.1.0.0"
[ "$EXTERNAL_FREETZ_PACKAGE_SCANBUTTOND_BACKEND_niash" == "y" ] && EXTERNAL_FILES+=" ${FREETZ_LIBRARY_DIR}/libscanbtnd-backend_niash.so.1.0.0"
[ "$EXTERNAL_FREETZ_PACKAGE_SCANBUTTOND_BACKEND_plustek" == "y" ] && EXTERNAL_FILES+=" ${FREETZ_LIBRARY_DIR}/libscanbtnd-backend_plustek.so.1.0.0"
[ "$EXTERNAL_FREETZ_PACKAGE_SCANBUTTOND_BACKEND_plustek_umax" == "y" ] && EXTERNAL_FILES+=" ${FREETZ_LIBRARY_DIR}/libscanbtnd-backend_plustek_umax.so.1.0.0"
[ "$EXTERNAL_FREETZ_PACKAGE_SCANBUTTOND_BACKEND_snapscan" == "y" ] && EXTERNAL_FILES+=" ${FREETZ_LIBRARY_DIR}/libscanbtnd-backend_snapscan.so.1.0.0"