Fix RakeHelper for 1.8

adambeynon · adambeynon · commit 2946e9b41b57 · 2013-10-24T18:55:30.000+01:00
diff --git a/lib/opal/rake_helper.rb b/lib/opal/rake_helper.rb
@@ -13,11 +13,15 @@ def install_tasks
 
       def expose(*names)
         names.each do |name|
-          define_singleton_method(name) do |*args|
+          meta_class.send(:define_method, name) do |*args|
             instance.__send__(name, *args)
           end
         end
       end
+
+      def meta_class
+        class << self; self; end
+      end
     end
 
     expose :uglify, :gzip
