--- a/test/hotspot/jtreg/vmTestbase/nsk/share/native/native_thread.h	Mon Sep 17 15:25:42 2018 -0700
+++ b/test/hotspot/jtreg/vmTestbase/nsk/share/native/native_thread.h	Mon Sep 17 19:36:09 2018 -0700
@@ -24,9 +24,7 @@
 #ifndef NSK_SHARE_NATIVE_NATIVE_THREAD_H
 #define NSK_SHARE_NATIVE_NATIVE_THREAD_H
 
-#ifdef __cplusplus
 extern "C" {
-#endif
 
 /**
  * A thread procedure with a void* argument and returning
@@ -75,8 +73,6 @@
  */
 void THREAD_sleep(int seconds);
 
-#ifdef __cplusplus
 }
-#endif
 
 #endif