Rakefile in h8-0.4.8 vs Rakefile in h8-0.4.10

@@ -1,22 +1,44 @@
 require "bundler/gem_tasks"
+require "rake/extensiontask"
+require 'rubygems/package_task'
+
+begin
+  Bundler.setup(:default, :development)
+rescue Bundler::BundlerError => e
+  $stderr.puts e.message
+  $stderr.puts "Run `bundle install` to install missing gems"
+  exit e.status_code
+end
+
+$gemspec = Bundler::GemHelper.gemspec
+
+Gem::PackageTask.new($gemspec) do |pkg|
+end
+
+Rake::ExtensionTask.new "h8", $gemspec do |ext|
+  ext.lib_dir        = "lib/h8"
+  ext.source_pattern = "*.{c,cpp,js}"
+  ext.gem_spec       = $gemspec
+end
+