zstd/programs/platform.h

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/**
* Copyright (c) 2016-present, Przemyslaw Skibinski, Yann Collet, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#ifndef PLATFORM_H_MODULE
#define PLATFORM_H_MODULE
#if defined (__cplusplus)
extern "C" {
#endif
/* **************************************
* Compiler Options
****************************************/
#if defined(__INTEL_COMPILER)
# pragma warning(disable : 177) /* disable: message #177: function was declared but never referenced */
#endif
#if defined(_MSC_VER)
# define _CRT_SECURE_NO_WARNINGS /* Disable some Visual warning messages for fopen, strncpy */
# define _CRT_SECURE_NO_DEPRECATE /* VS2005 */
# pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */
# if _MSC_VER <= 1800 /* (1800 = Visual Studio 2013) */
# define snprintf sprintf_s /* snprintf unsupported by Visual <= 2013 */
# endif
#endif
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/* **************************************
* Unix Large Files support (>4GB)
****************************************/
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#if !defined(__LP64__) /* No point defining Large file for 64 bit */
# define _FILE_OFFSET_BITS 64 /* turn off_t into a 64-bit type for ftello, fseeko */
# if defined(__sun__) && !defined(_LARGEFILE_SOURCE) /* Sun Solaris 32-bits requires specific definitions */
# define _LARGEFILE_SOURCE /* fseeko, ftello */
# elif !defined(_LARGEFILE64_SOURCE)
# define _LARGEFILE64_SOURCE /* off64_t, fseeko64, ftello64 */
# endif
#endif
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/* ***********************************************************
* Detect POSIX version
* PLATFORM_POSIX_VERSION = 0 for non-Unix e.g. Windows
* PLATFORM_POSIX_VERSION = 1 for Unix-like
* PLATFORM_POSIX_VERSION > 1 is equal to found _POSIX_VERSION
**************************************************************/
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#if !defined(_WIN32) && (defined(__unix__) || defined(__unix) || (defined(__APPLE__) && defined(__MACH__)) || defined(__midipix__))
/* UNIX-style OS. ------------------------------------------- */
# if (defined(__APPLE__) && defined(__MACH__) || defined(__SVR4) || defined(_AIX) || defined(__hpux) \
|| defined(__DragonFly__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) \ /* POSIX.12001 (SUSv3) conformant */
# define PLATFORM_POSIX_VERSION 200112L
# else
# if defined(__linux__) || defined(__linux)
# define _POSIX_C_SOURCE 200112L /* use feature test macro */
# endif
# include <unistd.h> /* declares _POSIX_VERSION */
# if defined(_POSIX_VERSION) /* POSIX compliant */
# define PLATFORM_POSIX_VERSION _POSIX_VERSION
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# else
# define PLATFORM_POSIX_VERSION 1
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# endif
# endif
#endif
#if !defined(PLATFORM_POSIX_VERSION)
# define PLATFORM_POSIX_VERSION 0
#endif
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#if defined (__cplusplus)
}
#endif
#endif /* PLATFORM_H_MODULE */