#!/bin/sh
set -e
case "$1" in
install|abort-upgrade)
;;
upgrade)
if dpkg --compare-versions "$2" lt-nl '3.1~201603152148-1'; then
[ -c /dev/grsec ] && rm -f /dev/grsec
fi
;;
*)
echo "preinst called with unknown argument \`$1'" >&2
exit 0
;;
esac
exit 0