How to set Custom Rspec Matchers

rspec version is 1.3.x.
create custom_matchers.rb in application's spec directory, railsapp/spec.
custom_matchers.rb

module CustomMatcher
　　def matcher_something
　　　　#define custom matcher
　　end
end

edit railsapp/spec/spec_helper.rb

.
.
.
require 'spec/rails'
require File.dirname(__FILE__) + "/custom_matchers"
・
・
Spec::Runner.configure do |config|
　　.
　　.
　　config.fixture_path = RAILS_ROOT + '/spec/fixtures/'
　　config.include(CustomMatcher)

And matcher_someting is enabled.