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       1           1 : /**
       2             :  * @file arch/platform.h
       3             :  *
       4             :  * @brief Determine on what OS we are compiling
       5             :  *
       6             :  * This header performs some macro checks set by common compilers to determine
       7             :  * if we are compiling towards a POSIX target or a Windows target.
       8             :  * In case of POSIX, it also tries to set some macros used to understand what
       9             :  * is the POSIX version on which we are running.
      10             :  *
      11             :  * SPDX-FileCopyrightText: 2008-2021 HPDCS Group <rootsim@googlegroups.com>
      12             :  * SPDX-License-Identifier: GPL-3.0-only
      13             :  */
      14             : #pragma once
      15             : 
      16             : #if defined(_WIN32)
      17             : #define __WINDOWS
      18             : #elif defined(__unix__) || defined(__unix) || (defined(__APPLE__) && defined(__MACH__))
      19             : #define __POSIX
      20             : 
      21             : #if defined(__linux__)
      22             : #define __LINUX
      23             : #endif
      24             : 
      25             : #if defined(__APPLE__) && defined(__MACH__)
      26             : #define __MACOS
      27             : #endif
      28             : 
      29             : #else
      30             : #error Unsupported operating system
      31             : #endif