% CONFIGURE_OPTS="--with-openssl-dir=`brew --prefix openssl` --with-readline-dir=`brew --prefix readline`" rbenv install 2.0.0-p247
% rbenv global 2.0.0-p247
% ruby -v
ruby 2.0.0p247 (2013-06-27 revision 41674) [x86_64-darwin12.4.0]
% gem install bundler rbenv-rehash