module Spec::Runner

def configuration # :nodoc:

:nodoc: 
def configuration # :nodoc:
  @configuration ||= Spec::Example::Configuration.new
end

def configure


for details about what you can do with it.
Spec::Example::Configuration instance. See its RDoc
The yielded configuration object is a

end
# Configure RSpec here
Spec::Runner.configure do |configuration|

RSpec:
Use this to configure various configurable aspects of 
def configure
  yield configuration
end

def register_at_exit_hook # :nodoc:

:nodoc: 
def register_at_exit_hook # :nodoc:
  $spec_runner_at_exit_hook_registered ||= nil
  unless $spec_runner_at_exit_hook_registered
    at_exit do
      unless $! || Spec.run?; \
        success = Spec.run; \
        exit success if Spec.exit?; \
      end
    end
    $spec_runner_at_exit_hook_registered = true
  end
end