From: Eric Hodel <drbrain@...7.net>
Date: 2009-09-01T08:06:40+09:00
Subject: Re: Updating gems for ruby 1.9

On Aug 29, 2009, at 11:10, Space Ship Traveller wrote:

> Is it possible to install a gem for all versions of ruby?

Not by default.

You can set GEM_HOME and GEM_PATH to force RubyGems to use a common  
path.  See gem help env.