Cleanup _LIBCPP_HAS_NO_<c++11-feature> macros in thread.

llvm-svn: 300622

1 files changed, 2 insertions, 1 deletions

diff --git a/libcxx/test/std/thread/thread.mutex/thread.once/thread.once.onceflag/default.pass.cpp b/libcxx/test/std/thread/thread.mutex/thread.once/thread.once.onceflag/default.pass.cpp
index 6995f064833..21011ed17cd 100644
--- a/libcxx/test/std/thread/thread.mutex/thread.once/thread.once.onceflag/default.pass.cpp
+++ b/libcxx/test/std/thread/thread.mutex/thread.once/thread.once.onceflag/default.pass.cpp
@@ -14,13 +14,14 @@
 // constexpr once_flag() noexcept;
 
 #include <mutex>
+#include "test_macros.h"
 
 int main()
 {
     {
     std::once_flag f;
     }
-#ifndef _LIBCPP_HAS_NO_CONSTEXPR
+#if TEST_STD_VER >= 11
     {
     constexpr std::once_flag f;
     }