From: Dan Rathbun <danzoid61@...>
Date: 2010-08-11T09:42:06+09:00
Subject: Re: Determining whether the running ruby is outdated?

Dan Rathbun wrote:
>
> .. some has suggested I add RUBY_ENGINE to all before 1.9.x (but I 
> haven't got to it yet.)

Here's the snippet for RUBY_ENGINE:

  #
  # RUBY_ENGINE was added sometime in the 1.9.x branch
  #
  if defined?(RUBY_ENGINE).nil?
    RUBY_ENGINE = RUBY_VERSION.split('.')[0..1].join('.')
  end

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