post_install() {
  gtk-update-icon-cache -q -t -f /usr/share/pixmaps
  update-desktop-database -q
}

post_upgrade() {
  gtk-update-icon-cache -q -t -f /usr/share/pixmaps
  update-desktop-database -q
}

post_remove() {
  gtk-update-icon-cache -q -t -f /usr/share/pixmaps
  update-desktop-database -q
}