post_upgrade() {
      /usr/lib/vlc/vlc-cache-gen /usr/lib/vlc/plugins
}

post_remove() {
  post_upgrade
}

post_install() {
  post_upgrade
  printf "\e[37;1m\e[44;1m%s\e[0m\n" "\
 Please install a soundfont in order fluidsynth plugin to
 be able to play your midi files. Then, open vlc and select
 your soundfont in Tools > Preferences > Show settings/All
 (Advanced Preferences) > Input / Codecs > Audio codecs
 > FluidSynth"
}