This repository contains the GNU AVR toolchain as formulae for Homebrew.
AVR is a popular family of microcontrollers, used for example in the Arduino project.
Installing Homebrew-avr Formulae
brew tap larsimmisch/avr and then
brew install <formula>.
To install the entire AVR toolchain, do:
brew install avr-libc
This will pull in the prerequisites avr-binutils and avr-gcc.
You can also install via URL:
brew install https://raw.github.com/larsimmisch/homebrew-avr/master/<formula>.rb
man brew, or the Homebrew wiki.