title: how to pass compilation flags when compiling ruby with rbenv?
body: <p>I saw <a href="http://alisnic.net/blog/making-your-ruby-fly/" rel="nofollow">this post</a> explaining how to compile rubies for rvm with <code>-O3</code> and so on, but how do i do the equivalent with rbenv? in particular i want <code>-O0 -g3</code> (no optimization, and highest debugging level)</p>