# up_trigger everything on major version updates 
local NEW_SPELL_BRANCH="" &&
local OLD_SPELL_BRANCH="" &&

if spell_ok  $SPELL; then
  NEW_SPELL_BRANCH="$(echo $VERSION | cut -d. -f1,2)" &&  
  OLD_SPELL_BRANCH="$(installed_version $SPELL | cut -d. -f1,2)" &&

  if test "${NEW_SPELL_BRANCH}" != "${OLD_SPELL_BRANCH}"; then
    message "This is a possibly incompatible update of ${SPELL}..."
    message "Figuring out what spells need to be recast, this may take a while."
    for each in $(show_up_depends $SPELL 1); do
      if gaze install $each | xargs readelf -d 2> /dev/null |
         grep -q "NEEDED.*lib\(\(swscale\)\|\(avcodec\)\|\(avdevice\)\|\(avfilter\)\|\(avutil\)\|\(postproc\)\|\(swresample\)\)"; then
           up_trigger $each cast_self
      fi
    done
  fi
fi
