Fix clang errors in ubuntu

In natty clang needs some the headers that are not included in ubuntu. To get clang to work use the following:

sudo ln -s /usr/include/c++/4.5 /usr/include/c++/4.4

When debugging in python, I use ipython's ipdb debugger to set breakpoints. I can add the following code in the location I want to stop:

import ipdb; ipdb.set_trace()

I wanted something similar for ruby. I got the same behaviour set up with the following code and patching using irb_completion's output. Install the required gem files:

gem install ruby-debug-base
gem install ruby-debug
gem install wirble
gem install patch_irb_completion;patch_irb_completion

Modify the ruby file to be debugged:

require 'rubygems'
require 'ruby-debug'
require 'wirble'
Wirble.init
Wirble.colorize

debugger #location to stop

running the code with the --debug option will stop at the requested location and drop an rdb prompt with tab completion. Reference: http://stackoverflow.com/questions/2504515/what-do-i-put-in-my-ruby-jruby-code-to-break-into-the-debugger http://www.unboxedconsulting.com/blog/irc-completion-from-the-debugger