(1) Build emacs-mac-port
$ git clone git://github.com/railwaycat/emacs-mac-port.git
$ brew install autoconf automake libtool
$ ./configure --with-mac --enable-mac-app
$ make && make install
(2) Cloning Repo
$ git clone --recursive git://github.com/1ambda/emacs-osx ~/.emacs.d/
$ cd ~/.emacs.d/
(3) Building CEDET
$ cd ~/.emacs.d/setup/cedet
$ make clean-all && make
$ cd ~/.emacs.d/setup/cedet/contrib
$ make
(1) install cask
(2) download dependencies
$ cask install