Ruby Gem Require LoadError (8-STABLE, Ruby 1.9.1)

[Aaron Gifford]

Hi,

I'm running a fresh install of FreeBSD 8-STABLE (installed then
updated to STABLE as of 27 Jan. 2010).  All ports are freshly built
and installed.

THE PROBLEM:
After installing Ruby 1.9.1 and several gems via the Ports collection,
ruby scripts that use the gems fail to load:

------
#!/usr/local/bin/ruby19

require 'rubygems'
require 'net/ssh'

...

------

The script fails with:

------
user at host:/home/user% ./script.rb
./script.rb:4:in `require': no such file to load -- net/ssh (LoadError)
       from ./script.rb:4:in `<main>'
------

So of course I check my gems install:
------
user at host:/home/user% gem list --local

*** LOCAL GEMS ***

activerecord (2.3.4)
activesupport (2.3.4)
net-ssh (2.0.15)
pg (0.8.0)
sqlite3-ruby (1.2.5)
user at host:/home/user# gem19 environment
RubyGems Environment:
 - RUBYGEMS VERSION: 1.3.1
 - RUBY VERSION: 1.9.1 (2009-12-07 patchlevel 376) [amd64-freebsd8]
 - INSTALLATION DIRECTORY: /usr/local/lib/ruby/gems/1.9
 - RUBY EXECUTABLE: /usr/local/bin/ruby19
 - EXECUTABLE DIRECTORY: /usr/local/bin
 - RUBYGEMS PLATFORMS:
   - ruby
   - amd64-freebsd-8
 - GEM PATHS:
    - /usr/local/lib/ruby/gems/1.9
    - /home/user/.gem/ruby/1.9
 - GEM CONFIGURATION:
    - :update_sources => true
    - :verbose => true
    - :benchmark => false
    - :backtrace => false
    - :bulk_threshold => 1000
 - REMOTE SOURCES:
    - http://gems.rubyforge.org/
user at host:/home/user% pkg_info | grep ruby
ruby-1.9.1,1        An object-oriented interpreted scripting language
ruby19-iconv-1.9.1,1 An iconv wrapper class for Ruby
ruby19-mysql-2.8.1  Ruby module for accessing MySQL databases with a C API like
rubygem-activerecord-2.3.4_1 Object-relational mapping layer for Rails
MVC Framework
rubygem-activesupport-2.3.4_1 Utility classes and extension that are
required by Rails MV
rubygem-net-ssh-2.0.15 Non-interactive SSH processing
rubygem-pg-0.8.0    Ruby interface to PostgreSQL library
rubygem-sqlite3-1.2.5 Ruby interface to the SQLite DB engine version 3
user at host:/home/user% uname -av
FreeBSD host.example.org 8.0-STABLE FreeBSD 8.0-STABLE #0: Wed Jan 27
19:46:39 MST 2010
root at host.example.com:/usr/obj/usr/src/sys/GENERIC  amd64
user at host:/home/user%
------

ALL installed gems fail to load with the exact same error.  So I
think, perhaps it's the FreeBSD port system gems that are bad.  I
download a new gem and install it with the gem command (bypassing
ports).  But when I try to require it, it fails with the exact same
error.

All of the installed gems (whether by ports or by direct gem install)
are in the correct install location (/usr/local/lib/ruby/gems/1.9/)
and are present.

Then I learn this:

------
user at host:/home/user% irb19
irb(main):001:0> require 'rubygems'
=> true
irb(main):002:0> require 'net/ssh'
LoadError: no such file to load -- net/ssh
       from (irb):2:in `require'
       from (irb):2
       from /usr/local/bin/irb:12:in `<main>'
irb(main):003:0> require 'active_record'
LoadError: no such file to load -- active_record
       from (irb):3:in `require'
       from (irb):3
       from /usr/local/bin/irb:12:in `<main>'
irb(main):004:0> gem 'net-ssh'
=> true
irb(main):005:0> require 'net/ssh'
=> true
irb(main):006:0> require 'active_record'
LoadError: no such file to load -- active_record
       from (irb):6:in `require'
       from (irb):6
       from /usr/local/bin/irb:12:in `<main>'
irb(main):007:0> gem 'activerecord'
=> true
irb(main):008:0> require 'active_record'
=> true
irb(main):009:0>
------

Now THAT's interesting.  If I use the gem method before the require,
the gem is found.  But ONLY after.

Anyone have any ideas?

Puzzled,
Aaron out.