version-check.sh


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#!/bin/bash
set -e
[[ -n $1 && -f $1/Makefile ]]
[[ $(< "$1/Makefile") =~ VERSION[[:space:]]*=[[:space:]]*([0-9]+).*PATCHLEVEL[[:space:]]*=[[:space:]]*([0-9]+).*SUBLEVEL[[:space:]]*=[[:space:]]*([0-9]+) ]]
LINUX_VERSION_CODE=$(( (${BASH_REMATCH[1]} * 65536) + (${BASH_REMATCH[2]} * 256) + ${BASH_REMATCH[3]} ))
(( LINUX_VERSION_CODE >= ((3 * 65536) + (10 * 256) + 0) ))