title: Ruby 2.2.0 won't run because of issue with libgmp.10.dylib
body: <p>I just installed Ruby 2.2.0 with RVM, and trying to use it gives me this:</p>
  
  <pre><code>$ rvm use 2.2.0 --default
  Using /Users/brandon/.rvm/gems/ruby-2.2.0
  dyld: Library not loaded: /usr/local/lib/libgmp.10.dylib
    Referenced from: /Users/brandon/.rvm/rubies/ruby-2.2.0/bin/ruby
    Reason: Incompatible library version: ruby requires version 13.0.0 or later, but libgmp.10.dylib provides version 12.0.0
  </code></pre>