_mingw_mac.h

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#ifndef _INC_CRTDEFS_MACRO
#define _INC_CRTDEFS_MACRO

#define __STRINGIFY(x) #x
#define __MINGW64_STRINGIFY(x) __STRINGIFY(x)

#define __MINGW64_VERSION_MAJOR 1
#define __MINGW64_VERSION_MINOR 1
#define __MINGW64_VERSION_STR   __MINGW64_STRINGIFY(__MINGW64_VERSION_MAJOR) "." __MINGW64_STRINGIFY(__MINGW64_VERSION_MINOR)
#define __MINGW64_VERSION_STATE "alpha"

/* mingw.org's version macros: these make gcc to define
   MINGW32_SUPPORTS_MT_EH and to use the _CRT_MT global
   and the __mingwthr_key_dtor() function from the MinGW
   CRT in its private gthr-win32.h header. */
#define __MINGW32_MAJOR_VERSION 3
#define __MINGW32_MINOR_VERSION 11

#ifdef _WIN64
/* MS does not prefix symbols by underscores for 64-bit.  */
#ifndef __MINGW_USE_UNDERSCORE_PREFIX
/* As we have to support older gcc version, which are using underscores
   as symbol prefix for x64, we have to check here for the user label
   prefix defined by gcc.  */
#ifdef __USER_LABEL_PREFIX__
#pragma push_macro ("_")
#undef _
#define _ 1
#if (__USER_LABEL_PREFIX__ + 0) != 0
#define __MINGW_USE_UNDERSCORE_PREFIX 1
#else
#define __MINGW_USE_UNDERSCORE_PREFIX 0
#endif
#undef _
#pragma pop_macro ("_")
#else
#define __MINGW_USE_UNDERSCORE_PREFIX 0
#endif
#endif
#else
/* For 32-bits we have always to prefix by underscore.  */
#undef __MINGW_USE_UNDERSCORE_PREFIX
#define __MINGW_USE_UNDERSCORE_PREFIX 1
#endif

#if __MINGW_USE_UNDERSCORE_PREFIX == 0
#define __MINGW_IMP_SYMBOL(sym) __imp_##sym
#define __MINGW_USYMBOL(sym) sym
#define __MINGW_LSYMBOL(sym) _##sym
#else
#define __MINGW_IMP_SYMBOL(sym) _imp__##sym
#define __MINGW_USYMBOL(sym) _##sym
#define __MINGW_LSYMBOL(sym) sym
#endif

/* Use alias for msvcr80 export of get/set_output_format.  */
#ifndef __USE_MINGW_OUTPUT_FORMAT_EMU
#define __USE_MINGW_OUTPUT_FORMAT_EMU 1
#endif

/* Set VC specific compiler target macros.  */
#if defined(__x86_64) && defined(_X86_)
#undef _X86_    /* _X86_ is not for __x86_64 */
#endif

#if defined(_X86_) && !defined(_M_IX86) && !defined(_M_IA64) \
   && !defined(_M_AMD64) && !defined(__x86_64)
#if defined(__i486__)
#define _M_IX86 400
#elif defined(__i586__)
#define _M_IX86 500
#else
/* This gives wrong (600 instead of 300) value if -march=i386 is specified
   but we cannot check for__i386__ as it is defined for all 32-bit CPUs. */
#define _M_IX86 600
#endif
#endif

#if defined(__x86_64) && !defined(_M_IX86) && !defined(_M_IA64) \
   && !defined(_M_AMD64)
#define _M_AMD64 100
#define _M_X64 100
#endif

#if defined(__ia64__) && !defined(_M_IX86) && !defined(_M_IA64) \
   && !defined(_M_AMD64) && !defined(_X86_) && !defined(__x86_64)
#define _M_IA64 100
#endif

#ifndef __PTRDIFF_TYPE__
#ifdef _WIN64
#define __PTRDIFF_TYPE__ long long int
#else
#define __PTRDIFF_TYPE__ long int
#endif
#endif

#ifndef __SIZE_TYPE__
#ifdef _WIN64
#define __SIZE_TYPE__ long long unsigned int
#else
#define __SIZE_TYPE__ long unsigned int
#endif
#endif

#ifndef __WCHAR_TYPE__
#define __WCHAR_TYPE__ unsigned short
#endif
#ifndef __WINT_TYPE__
#define __WINT_TYPE__  unsigned short
#endif

#undef __MINGW_EXTENSION
#if defined(__GNUC__) || defined(__GNUG__)
#define __MINGW_EXTENSION   __extension__
#else
#define __MINGW_EXTENSION
#endif

/* Special case nameless struct/union.  */
#ifndef __C89_NAMELESS
#define __C89_NAMELESS __MINGW_EXTENSION

#define __C89_NAMELESSSTRUCTNAME
#define __C89_NAMELESSUNIONNAME
#endif

#ifndef __GNU_EXTENSION
#define __GNU_EXTENSION     __MINGW_EXTENSION
#endif

/* MinGW-w64 has some additional C99 printf/scanf feature support.
   So we add some helper macros to ease recognition of them.  */
#define __MINGW_HAVE_ANSI_C99_PRINTF 1
#define __MINGW_HAVE_WIDE_C99_PRINTF 1
#define __MINGW_HAVE_ANSI_C99_SCANF 1
#define __MINGW_HAVE_WIDE_C99_SCANF 1

#endif  /* _INC_CRTDEFS_MACRO */