Rakefile in utf8-0.1.2 vs Rakefile in utf8-0.1.3

@@ -1,11 +1,32 @@
+# rspec
+begin
+  require 'rspec'
+  require 'rspec/core/rake_task'
+
+  desc "Run all examples with RCov"
+  RSpec::Core::RakeTask.new('spec:rcov') do |t|
+    t.rcov = true
+  end
+  RSpec::Core::RakeTask.new('spec') do |t|
+    t.verbose = true
+  end
+
+  task :default => :spec
+rescue LoadError
+  puts "rspec, or one of its dependencies, is not available. Install it with: sudo gem install rspec"
+end
+
+# rake-compiler
 require 'rake' unless defined? Rake
 
-gem 'rake-compiler', '~> 0.7.1'
+gem 'rake-compiler', '>= 0.7.5'
 require "rake/extensiontask"
 
 Rake::ExtensionTask.new('utf8') do |ext|
   ext.cross_compile = true
   ext.cross_platform = ['x86-mingw32', 'x86-mswin32-60']
 
   ext.lib_dir = File.join 'lib', 'utf8'
 end
+
+Rake::Task[:spec].prerequisites << :compile