post_install() {
  echo '==> To enable gcc coloring, add:'
  echo '    export PATH="/usr/lib/colorgcc/bin:$PATH"'
  echo '==> to your ~/.bash_profile'
}

post_upgrade() {
  if [ "$(vercmp $2 1.3.2-6)" -le 0 ]; then
    post_install
  fi
}