post_install() {
cat << _EOF

  Input device handling has changed since xorg-server 1.5.
  Please read http://wiki.archlinux.org/index.php/Xorg_input_hotplugging.

_EOF
}

post_upgrade() {
  if [ "`vercmp $2 1.4.99.906`" -lt 0 ]; then
    post_install
  fi
}