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# Check for libusb version >= [$1]
# Keith Clayton <keith@claytons.org>, 2001.
AC_DEFUN(AC_LIB_USB_VERSION,
[ AC_MSG_CHECKING(libusb version >= [$1])
LIBUSB_VERSION=$($LIBUSBCONFIG --version)
LIBUSB_MAJOR=`$LIBUSBCONFIG --version | sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/' | cut -b 1`
LIBUSB_MINOR=`$LIBUSBCONFIG --version | sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/' | cut -b 1`
LIBUSB_MICRO=`$LIBUSBCONFIG --version | sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
if [[ "$LIBUSB_MINOR" -lt "$(echo "$1" | cut -b 3)" ]] ; then
AC_MSG_RESULT(no)
AC_MSG_WARN(You have version $LIBUSB_MAJOR.$LIBUSB_MINOR.$LIBUSB_MINOR)
exit -1
else
LIBUSB_LETTER=`echo $LIBUSB_MICRO | cut -b 2`
LIBUSB_DIGIT=`echo $LIBUSB_MICRO | cut -b 1`
if [[ "$LIBUSB_DIGIT" -lt "$(echo "$1" | cut -b 5)" ]] ; then
AC_MSG_RESULT(no)
AC_MSG_ERROR(You have version $LIBUSB_MAJOR.$LIBUSB_MINOR.$LIBUSB_MICRO)
fi
AC_MSG_RESULT($LIBUSB_VERSION)
fi
])
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