Check in NDK r16b.
Test: None
Bug: None
diff --git a/sources/cxx-stl/llvm-libc++/include/cstdbool b/sources/cxx-stl/llvm-libc++/include/cstdbool
new file mode 100644
index 0000000..2c764a6
--- /dev/null
+++ b/sources/cxx-stl/llvm-libc++/include/cstdbool
@@ -0,0 +1,32 @@
+// -*- C++ -*-
+//===--------------------------- cstdbool ---------------------------------===//
+//
+// 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.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP_CSTDBOOL
+#define _LIBCPP_CSTDBOOL
+
+/*
+ cstdbool synopsis
+
+Macros:
+
+ __bool_true_false_are_defined
+
+*/
+
+#include <__config>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+#pragma GCC system_header
+#endif
+
+#undef __bool_true_false_are_defined
+#define __bool_true_false_are_defined 1
+
+#endif // _LIBCPP_CSTDBOOL
