#!/bin/bash

if test -n "${KDIR}"; then
    if test -f ${KDIR}/include/linux/version.h; then
	echo ${KDIR}
	exit 0
    else
	exit 1
    fi
else
    if test -f /usr/src/linux/include/linux/version.h; then
	echo /usr/src/linux
	exit 0
    elif test -f /lib/modules/`uname -r`/build/include/linux/version.h; then
	echo /lib/modules/`uname -r`/build
	exit 0
    else
	exit 1
    fi
fi