helpers.rb in compass-0.11.beta.6

- old
+ new

@@ -1,7 +1,8 @@
 module Compass
   module Configuration
+    @callbacks_loaded = false
     # The helpers are available as methods on the Compass module. E.g. Compass.configuration
     module Helpers
       def configuration
         @configuration ||= default_configuration
         if block_given?
@@ -63,17 +64,17 @@
         locations.each do |sass_dir, css_dir|
           unless Sass::Plugin.engine_options[:load_paths].include?(sass_dir)
             Sass::Plugin.add_template_location sass_dir, css_dir
           end
         end
-        unless defined?(CallbacksSetup)
+        unless @callbacks_loaded
           Sass::Plugin.on_updating_stylesheet do |sass_file, css_file|
             Compass.configuration.run_callback(:stylesheet_saved, css_file)
           end
           Sass::Plugin.on_compilation_error do |e, filename, css|
             Compass.configuration.run_callback(:stylesheet_error, filename, e.message)
           end
-          const_set('CallbacksSetup', true)
+          @callbacks_loaded = true
         end
       end
 
       def sass_engine_options
         configuration.to_sass_engine_options