pkgname=haskell-al

post_install() {
  /usr/share/$pkgname/register.sh
}

pre_upgrade() {
  /usr/share/$pkgname/unregister.sh
}

post_upgrade() {
  /usr/share/$pkgname/register.sh
}

pre_remove() {
  /usr/share/$pkgname/unregister.sh
}