1 files changed, 20 insertions, 0 deletions
diff --git a/libcxx/test/std/thread/thread.mutex/version.pass.cpp b/libcxx/test/std/thread/thread.mutex/version.pass.cpp
new file mode 100644
index 00000000000..81b52c79204
--- /dev/null
+++ b/libcxx/test/std/thread/thread.mutex/version.pass.cpp
@@ -0,0 +1,20 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <mutex>
+
+#include <mutex>
+
+#ifndef _LIBCPP_VERSION
+#error _LIBCPP_VERSION not defined
+#endif
+
+int main()
+{
+}