From: David Brodbeck <brodbd@...>
Date: 2009-10-09T07:39:48+09:00
Subject: Re: Difficulty updating Ruby Gems in a non-standard location

On Oct 8, 2009, at 2:43 PM, spox wrote:

>> Unfortunately, that failed in the same way "gem update --system" did
>> -- it ignored $GEM_PREFIX and tried to install gem under /usr/bin/
>> gem.  The gem installation in /opt/ruby-gems was left untouched.
>
> Using the source you downloaded, make sure that GEM_HOME is  
> exported, then run
> setup with the prefix to the install location:
>
> ruby setup.rb --prefix=/opt/ruby-gems

That went to the right place, but now gem is broken:

$ gem
/opt/ruby-gems/bin/gem:14: undefined method `ruby_version' for  
Gem:Module (NoMethodError)

-- 

David Brodbeck
System Administrator, Linguistics
University of Washington