Index: src/libcfa/concurrency/thread
===================================================================
--- src/libcfa/concurrency/thread	(revision 44264c50bd21007657f222d600982645c7521b10)
+++ src/libcfa/concurrency/thread	(revision d94195d962a176324cd7c1a629e2bb7eb0be4b3d)
@@ -54,5 +54,5 @@
 }
 
-thread_desc * this_thread(void);
+extern volatile thread_local thread_desc * this_thread;
 
 forall( dtype T | is_thread(T) )