post_install() { if [ -x /usr/lib/lightdm/lightdm/lightdm-set-defaults ] ; then /usr/lib/lightdm/lightdm/lightdm-set-defaults --keep-old --greeter=lightdm-kde-greeter || true fi } post_upgrade() { post_install } post_remove() { if [ -x /usr/lib/lightdm/lightdm/lightdm-set-defaults ] ; then /usr/lib/lightdm/lightdm/lightdm-set-defaults --remove --greeter=lightdm-kde-greeter || true fi }