#! /bin/sh

t=__wt.$$
trap 'rm -f $t' 0 1 2 3 13 15
f=../INSTALL

. ../RELEASE_INFO

force=no
while :
	do case "$1" in
	-f)	# Force versions to be updated
		force=yes
		shift;;
	*)
		break;;
	esac
done

# If the version hasn't changed and we aren't forcing the issue, we're done.
# Don't generate a new INSTALL file just because the date changed unless forced:
# that happens all the time.
if test "$force" = no ; then
	cnt=`(sed -e q < $f; echo "$WIREDTIGER_VERSION_STRING") |
	    sed -e 's/:.*//' | sort -u | wc -l`
	test $cnt -eq 1 && exit 0
fi

cat << END_TEXT > $t
$WIREDTIGER_VERSION_STRING

This is version $WIREDTIGER_VERSION of WiredTiger.

Instructions for configuring, building, and installing WiredTiger are available online.

    For Linux, MacOS, and other POSIX systems:
    https://source.wiredtiger.com/develop/build-posix.html

    For Windows:
    https://source.wiredtiger.com/develop/build-windows.html
END_TEXT

cmp $t $f > /dev/null 2>&1 ||
    (echo "Building $f" && rm -f $f && cp $t $f)

exit 0