#!/bin/sh

set -e

case "$1" in
    install|upgrade)
        if [ "$DEBIAN_FRONTEND" != noninteractive ] && \
               [ -f /proc/cpuinfo ] && \
               ! grep -q '^flags[[:space:]]*:.*[[:space:]]sse4_2[[:space:]]' /proc/cpuinfo
        then
            . /usr/share/debconf/confmodule
            db_version 2.0
            db_input critical libvectorscan/cpu-sse4_2 || true
            db_go
            db_get libhyperscan/cpu-sse42
            if [ "$RET" = 'false' ]; then
                echo 'Aborting installation because of missing SSE4.2 extension.' >&2
                db_purge
                exit 1
            fi
        fi
    ;;

    abort-upgrade)
    ;;

    *)
        echo "preinst called with unknown argument \`$1'" >&2
        exit 1
    ;;
esac

#DEBHELPER#

exit 0