#!/bin/bash

CONFIG_MK=config.mk
KERNEL_BUILD=/lib/modules/`uname -r`/build
ECHO="/bin/echo -e "

# What kernel are we compiling for?

version () {
        expr $1 \* 65536 + $2 \* 256 + $3
}

write_bool() {
    value=`eval $ECHO '$'$1`
    if [ "$value" = "y" ] ; then
        $ECHO "$1=y" >> $CONFIG_MK
    else
        $ECHO "# $1 is not defined" >> $CONFIG_MK
    fi
}

write_str () {
    value=`eval $ECHO '$'$1`
    $ECHO $1=$value >> $CONFIG_MK
}

rm -f $CONFIG_MK

VERSION_CODE=`grep LINUX_VERSION_CODE $KERNEL_BUILD/include/linux/version.h | \
    sed -e 's/[^0-9]//g'`

if [ $VERSION_CODE -ge `version 2 5 0` ]; then
        $ECHO "Kernel 2.5 support is highly experimental."
	sleep 2
        KERN_25=y
else
	KERN_25=n
fi
write_bool KERN_25

write_str KERNEL_BUILD
write_str VERSION_CODE