Ruby - Error on install libv8 in os x yosemite

I try to do this

$ gem install libv8 -v 3.16.14.3    

and return this

An error occurred while installing libv8 (3.16.14.3), and Bundler cannot continue.
Make sure that `gem install libv8 -v '3.16.14.3'` succeeds before bundling.

I find this solution (https://github.com/cowboyd/libv8/issues/142)

$ gem install libv8 -v 3.16.14.3 -- --with-system-v8

Then i continued working.