--- old/src/hotspot/share/runtime/thread.cpp	2019-09-11 22:22:01.809884064 +0200
+++ new/src/hotspot/share/runtime/thread.cpp	2019-09-11 22:22:01.528874885 +0200
@@ -166,7 +166,7 @@
 
 #ifndef USE_LIBRARY_BASED_TLS_ONLY
 // Current thread is maintained as a thread-local variable
-THREAD_LOCAL_DECL Thread* Thread::_thr_current = NULL;
+thread_local Thread* Thread::_thr_current = NULL;
 #endif
 
 // ======= Thread ========