INFO_DIR=/usr/share/info

post_install() {
    install-info $INFO_DIR/clark.info.gz $INFO_DIR/dir 2> /dev/null
}

post_upgrade() {
    post_install $1
}

pre_remove() {
    install-info --delete $INFO_DIR/clark.info.gz $INFO_DIR/dir \
        2> /dev/null
}