Installing with homebrew
From Allegro Wiki
Allegro is graciously packaged by homebrew. To install Allegro from there, follow these steps:
- Install homebrew (follow the directions on homebrew's homepage).
- Instal Allegro.
brew install allegroon the terminal to install Allegro 5.2.x, the stable version.
brew install --HEAD allegroon the terminal to install the development version.
- That's it! Allegro should be installed into /usr/local/lib and /usr/local/include.