Ruby 1.8.4 is broken in my Ubuntu 6.10 Edgy Eft

I tried to install rmagick using gem today and got this:

raz@flere-imsaho:~/rubygems-0.9.0$ sudo gem update system
Updating installed gems...
Attempting remote update of system
ERROR:  While executing gem ... (Gem::GemNotFoundException)
Could not find system (> 0) in the repository
raz@flere-imsaho:~/rubygems-0.9.0$ gem install rails -include-dependencies
Bulk updating Gem source index for: http://gems.rubyforge.org
Install required dependency activerecord? [Yn]  Y
Bulk updating Gem source index for: http://gems.rubyforge.org
Install required dependency actionpack? [Yn]  Y
Bulk updating Gem source index for: http://gems.rubyforge.org
Install required dependency actionmailer? [Yn]  Y
Bulk updating Gem source index for: http://gems.rubyforge.org
Install required dependency actionwebservice? [Yn]  Y
Bulk updating Gem source index for: http://gems.rubyforge.org
Successfully installed rails-1.2.1
Successfully installed activerecord-1.15.1
Successfully installed actionpack-1.13.1
Successfully installed actionmailer-1.3.1
Successfully installed actionwebservice-1.2.1
Installing ri documentation for activerecord-1.15.1...
Installing ri documentation for actionpack-1.13.1...lib/action_controller/routing.rb:1050:30: ':' not followed by identified or operator

lib/action_controller/routing.rb:1054:39: ':' not followed by identified or operator
Installing ri documentation for actionmailer-1.3.1...
Installing ri documentation for actionwebservice-1.2.1...
Installing RDoc documentation for activerecord-1.15.1...
Installing RDoc documentation for actionpack-1.13.1...

lib/action_controller/routing.rb:1050:30: ':' not followed by identified or operator

lib/action_controller/routing.rb:1054:39: ':' not followed by identified or operator
Installing RDoc documentation for actionmailer-1.3.1...
Installing RDoc documentation for actionwebservice-1.2.1...
raz@flere-imsaho:~/rubygems-0.9.0$ sudo gem install rmagick
Need to update 1 gems from http://gems.rubyforge.org
.
complete
Building native extensions.  This could take a while...
configure: error: Can't install RMagick. Can't find Magick-config or GraphicsMagick-config program.

ERROR:  While executing gem ... (RuntimeError)
ERROR: Failed to build gem native extension.
Gem files will remain installed in /usr/lib/ruby/gems/1.8/gems/rmagick-1.15.0 for inspection.

Results logged to /usr/lib/ruby/gems/1.8/gems/rmagick-1.15.0/gem_make.out

Well, I have heard some rumours about the existence of some minor oddities with the Ubuntu version of Ruby so as I have done with other things, I am going to shun apt-get and compile from source instead.

Lets see what happens…!