require concurrent/synchronization before concurrent/utility/native_extension_loader

Author: pitr-ch

Rakefile

@@ -3,6 +3,7 @@
 $:.push File.join(File.dirname(__FILE__), 'lib')
 
 require 'concurrent/version'
+require 'concurrent/synchronization'
 require 'concurrent/utility/native_extension_loader'
 
 ## load the gemspec files

spec/support/example_group_extensions.rb

@@ -1,5 +1,5 @@
 require 'rbconfig'
-require 'concurrent/utility/native_extension_loader'
+require 'concurrent/synchronization'
 
 module Concurrent
   module TestHelpers