Index: src/libcfa/concurrency/thread
===================================================================
--- src/libcfa/concurrency/thread	(revision 44264c50bd21007657f222d600982645c7521b10)
+++ src/libcfa/concurrency/thread	(revision 89be1c68ce6af5c822ac429caef167ce24a3cf97)
@@ -54,5 +54,5 @@
 }
 
-thread_desc * this_thread(void);
+extern volatile thread_local thread_desc * this_thread;
 
 forall( dtype T | is_thread(T) )