title: Why doesn't mysql show up under gem list after installing successfully?
body: <p>Here's the deal:<br>
  $ gem -v  </p>
  
  <pre><code>1.3.7  
  </code></pre>
  
  <p>$ gem env  </p>
  
  <pre><code>RubyGems Environment:
    - RUBYGEMS VERSION: 1.3.7
    - RUBY VERSION: 1.9.2 (2010-08-18 patchlevel 0) [x86_64-darwin10.4.0]
    - INSTALLATION DIRECTORY: /Users/harriett/.rvm/gems/ruby-1.9.2-p0@rails3tutorial
    - RUBY EXECUTABLE: /Users/harriett/.rvm/rubies/ruby-1.9.2-p0/bin/ruby
    - EXECUTABLE DIRECTORY: /Users/harriett/.rvm/gems/ruby-1.9.2-p0@rails3tutorial/bin
    - RUBYGEMS PLATFORMS:
      - ruby
      - x86_64-darwin-10
    - GEM PATHS:
       - /Users/harriett/.rvm/gems/ruby-1.9.2-p0@rails3tutorial
       - /Users/harriett/.rvm/gems/ruby-1.9.2-p0@global
    - GEM CONFIGURATION:
       - :update_sources =&gt; true
       - :verbose =&gt; true
       - :benchmark =&gt; false
       - :backtrace =&gt; false
       - :bulk_threshold =&gt; 1000
    - REMOTE SOURCES:
       - http://rubygems.org/
  </code></pre>
  
  <p>$ sudo env ARCHFLAGS="-arch i386" gem install mysql -- --with-mysql-config=/Applications/MAMP/Library/bin/mysql_config  </p>
  
  <pre><code>Building native extensions.  This could take a while...  
  Successfully installed mysql-2.8.1  
  1 gem installed  
  </code></pre>
  
  <p>$ gem list mysql</p>
  
  <pre><code>* LOCAL GEMS *  
  </code></pre>
  
  <p>Why doesn't it show up?<br>
  Naturally, when I require "mysql" in a ruby program I get:  </p>
  
  <pre><code>`require': no such file to load -- mysql (LoadError)  
  </code></pre>