Getting Nokogiri working under Mac OS X

The official Installation documentation states:

sudo port install libxml2 libxslt
sudo gem install nokogiri

however I found this not to work for me. The following did work.

$ sudo port install libxml2 libxslt

$ sudo gem install nokogiri
ERROR:  could not find nokogiri locally or in a repository

$ sudo gem sources -a http://gems.github.com
Bulk updating Gem source index for: http://gems.github.com
Updating metadata for 1 gems from http://gems.rubyforge.org

$ sudo gem install nokogiri
ERROR:  could not find nokogiri locally or in a repository

$ sudo gem update --system
Updating RubyGems...
Attempting remote update of rubygems-update
Successfully installed rubygems-update-1.3.6
1 gem installed
Installing ri documentation for rubygems-update-1.3.6...
Installing RDoc documentation for rubygems-update-1.3.6...
Updating version of RubyGems to 1.3.6
Installing RubyGems 1.3.6
RubyGems 1.3.6 installed

$ sudo gem install nokogiri
Building native extensions.  This could take a while...
Successfully installed nokogiri-1.4.2
1 gem installed
Installing ri documentation for nokogiri-1.4.2...
No definition for parse_memory
No definition for parse_file
No definition for parse_with
No definition for get_options
No definition for set_options
Installing RDoc documentation for nokogiri-1.4.2...
No definition for parse_memory
No definition for parse_file
No definition for parse_with
No definition for get_options
No definition for set_options

I’m not sure why I got those additional errors, however I was able to confirm a valid installation with.

$ irb
>> require ‘nokogiri’
=> true
>> quit

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