Index: libcfa/src/concurrency/kernel/fwd.hfa
===================================================================
--- libcfa/src/concurrency/kernel/fwd.hfa	(revision ac12f1f79e92749dac156abad7761017b7a0992e)
+++ libcfa/src/concurrency/kernel/fwd.hfa	(revision c74e60192ab933411aa2834a374ef0049feae8ea)
@@ -132,4 +132,6 @@
 		}
 
+		extern uint64_t thread_rand();
+
 		//-----------------------------------------------------------------------
 		// Statics call at the end of each thread to register statistics