post_install() {
  gtk-query-immodules-2.0 > /etc/gtk-2.0/gtk.immodules
}

pre_upgrade() {
  pre_remove
}

post_upgrade() {
  post_install
}

pre_remove() {
  rm -f /etc/gtk-2.0/gtk.immodules &>/dev/null
  rm -f /etc/gtk-2.0/gdk-pixbuf.loaders &>/dev/null
}