1 files changed, 3 insertions, 0 deletions
diff --git a/implement.h b/implement.h
index cf3c7f4..69930ef 100644
--- a/implement.h
+++ b/implement.h
@@ -151,6 +151,9 @@ struct ptw32_thread_t_
   int implicit:1;
   void *keys;
   void *nextAssoc;
+#ifdef _POSIX_CXX09_EXTENSIONS
+  int refs;			/* C++ Thread Support Library extension */
+#endif
 };