title: Why can't I install the SQLite gem?
body: <p>I'm try to install the SQLite gem on a Fedora 9 Linux box with Ruby 1.8.6, Rails 2.2.2, gem 1.3, and sqlite-3.5.9. Here's the command I'm running and its results:</p>
  
  <pre><code>sudo gem install sqlite3-ruby
  Building native extensions.  This could take a while...
  ERROR:  Error installing sqlite3-ruby:
      ERROR: Failed to build gem native extension.
  
  /usr/bin/ruby extconf.rb install sqlite3-ruby
  can't find header files for ruby.
  
  Gem files will remain installed in /usr/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.2.4 for inspection.
  Results logged to /usr/lib/ruby/gems/1.8/gems/sqlite3-ruby-1.2.4/ext/sqlite3_api/gem_make.out
  </code></pre>
  
  <p><code>gem_make.out</code> just repeats what was already sent to the console. How can I install this gem?</p>