UNKNOWN_OPT=yes
        fi
        ;;
    *)
        UNKNOWN_OPT=yes
        ;;
    esac
    if [ "$UNKNOWN_OPT" = "yes" ]; then
        echo "${CURRENT_OPT}: invalid command-line switch"
        OPT_HELP=yes
        ERROR=yes
    fi
done

if [ "$CFG_QCONFIG" != "full" ] && [ "$CFG_QT3SUPPORT" = "yes" ]; then
    echo "Warning: '-qconfig $CFG_QCONFIG' will disable the qt3support library."
    CFG_QT3SUPPORT="no"
fi

#-------------------------------------------------------------------------------
# build tree initialization