From: Daniel Jewett <dan@...>
Date: 2007-07-13T01:55:10+09:00
Subject: Re: Yet another site_ruby question...

In article <46e285d2c6a7f2ca596e69a120d355b5@ruby-forum.com>, Alin Popa
<alin.popa@gmail.com> wrote:

> Daniel Jewett wrote:
> 
> > If I move the gem to site_ruby on my desktop, the load succeeds. My
> > question is why the inconsistency?
> > If the install location is incorrect why does require work on one
> > machine and not the other?
> > 
> > Here's the result of the install command on both machines:
> > Successfully installed flacinfo-rb-0.3
> > Installing ri documentation for flacinfo-rb-0.3...
> > File not found: lib
> > 
> > Is that last bit significant?
> > 
> > Thanks for any info,
> > Dan J.
> 
> Hi Daniel,
> 
> Did you tried by using "gem" command ?
> (gem instead of require_gem, which is obsolete)
> Maybe in one machine, by default, that lib is loaded and on the other 
> one, not?
> I'm just guessing.
> 
> All the best,
> 
> Alin

Thanks Alin,

Here's the result of my experiment with the gem command:

$ irb
irb(main):001:0> gem 'flacinfo'
NoMethodError: undefined method `gem' for main:Object
        from (irb):1
irb(main):002:0> require 'rubygems'
=> true
irb(main):003:0> gem 'flacinfo'
Gem::LoadError: Could not find RubyGem flacinfo (>= 0.0.0)

        from /usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:304:in
`report_activate_error'
        from /usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:238:in
`activate'
        from /usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:76:in
`active_gem_with_options'
        from /usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:50:in `gem'
        from (irb):3
irb(main):004:0> gem 'flacinfo-rb'
=> true
irb(main):005:0> song = FlacInfo.new("dread.flac")
NameError: uninitialized constant FlacInfo
        from (irb):5

'require' and 'gem' really want to find the library under 'site_ruby.' 
If I move it there, everything works. I just still can't figure out why
it works without being in 'site_ruby.' on my other machine.  :-( The
installations of ruby, rubygems, etc. where exactly the same on both.

Dan J.