This repository contains formulae that were removed from other repositories. Common reasons for retiring formulae to the boneyard include lack of upstream maintenance or problems integrating with Homebrew's packaging requirements. Broken formulae are migrated here as an alternative to allowing hard work and valuable knowledge to fade into git history.
With a little work, some of these formulae could be restored to the main repositories, but they are not actively maintained or kept up-to-date in this repository.
Welcome to the boneyard, perhaps you can dig up something interesting!
brew install homebrew/boneyard/<formula>
Or brew tap homebrew/boneyard and then brew install <formula>.
Or install via URL (which will not receive updates):
brew install https://raw.githubusercontent.com/Homebrew/homebrew-boneyard/master/<formula>.rb
brew help, man brew or check Homebrew's documentation.