From: David Heinemeier Hansson <david@...>
Date: 2003-08-05T20:22:39+09:00
Subject: Re: Log4r and Ruby 1.8.0 in Singleton problems

>  For ruby
>
>    require '/usr/local/lib/ruby/1.8/singleton.rb'
>
>  is different (it think that it's another module)
>
>    require 'singleton' # which is in repository.rb
>
>  This is why it give an error

Right. But the log4r.rbx doesn't contain any requirements to include 
the singleton module more than once. It's _only_ those three lines:

require 'log4r'
Log = Log4r::Logger.new("AC")
Log.add Log4r::StderrOutputter.new 'console'

...and since those three lines work just fine in IRB, I suspect 
something fishy with mod_ruby.

>  Another reason is that you mix
>    * ruby 1.8.0
>    * mod_ruby built with ruby 1.6.8

I didn't. Just double-checked it and even recompiled mod_ruby (1.1.1) 
and installed it again. It's surely ruby 1.8.0 and mod_ruby 1.1.1 
compiled with the same version.

(Thanks for the suggestions, though...)

/ David