// RUN: %clang_cc1 -fsyntax-only -triple i386-pc-win32 -fms-compatibility %s
#if defined(_WCHAR_T_DEFINED)
#error "_WCHAR_T_DEFINED should not be defined in C99"
#endif
#include <stddef.h>
#if !defined(_WCHAR_T_DEFINED)
#error "_WCHAR_T_DEFINED should have been set by stddef.h"
#endif
#if defined(_NATIVE_WCHAR_T_DEFINED)
#error "_NATIVE_WCHAR_T_DEFINED should not be defined"
#endif