From: abc <arcadiorubiogarcia@...>
Date: 2009-03-02T05:28:56+09:00
Subject: Re: 1.9 on OS X

As already mentioned, MacPorts works fine. It gives you the option of
having separate binaries for 1.8 & 1.9 (ruby1.8 / ruby1.9, irb1.8 /
irb1.9...) or having only one (ruby, irb). But with the last option
you can't have both versions installed at the same time, although you
can activate & deactivate ports pretty fast.