If you have trouble getting KICAD to build and haven’t checked out homebrew you might want to check it out. I try to keep a current tap for KICAD.
To install first install homebrew if you haven’t already:
ruby -e "$(curl -fsSL https://raw.github.com/mxcl/homebrew/go)"
Then tap the KICAD homebrew script to build.
brew tap shaneburrell/homebrew-kicad brew install kicad
To update/upgrade to the latest KICAD as often as you like.
brew update brew upgrade