Added explicit require statement.

jdantonio · jdantonio · commit 59dcfb9ed99e · 2014-06-28T19:42:53.000-04:00
diff --git a/lib/concurrent/atomic/thread_local_var.rb b/lib/concurrent/atomic/thread_local_var.rb
@@ -1,8 +1,10 @@
+require 'concurrent/atomic/atomic_fixnum'
+
 module Concurrent
 
   module ThreadLocalSymbolAllocator
 
-    COUNTER = AtomicFixnum.new
+    COUNTER = Concurrent::AtomicFixnum.new
 
     protected
 
