安装 brew

 

rm -rf /usr/local/Cellar /usr/local/.git && brew cleanup

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

 

 

 

brew tap homebrew/dupes && brew install apple-gcc42
brew install autoconf automake libtool pkg-config  libyaml readline libksba openssl

 

 

安装rvm

curl -L https://get.rvm.io | bash -s stable

 

安装ruby

rvm install 2.0.0

 

安装rubygems

rvm rubygems 2.1.3