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// ndnboost/system/api_config.hpp -------------------------------------------------------//
// Copyright Beman Dawes 2003, 2006, 2010
// Distributed under the Boost Software License, Version 1.0.
// See http://www.boost.org/LICENSE_1_0.txt
// See http://www.boost.org/libs/system for documentation.
//--------------------------------------------------------------------------------------//
// Boost.System calls operating system API functions to implement system error category
// functions. Usually there is no question as to which API is to be used.
//
// In the case of MinGW or Cygwin/MinGW, however, both POSIX and Windows API's are
// available. Chaos ensues if other code thinks one is in use when Boost.System was
// actually built with the other. This header centralizes the API choice and prevents
// user definition of API macros, thus elminating the possibility of mismatches and the
// need to test configurations with little or no practical value.
//
//--------------------------------------------------------------------------------------//
#ifndef NDNBOOST_SYSTEM_API_CONFIG_HPP
#define NDNBOOST_SYSTEM_API_CONFIG_HPP
# if defined(NDNBOOST_POSIX_API) || defined(NDNBOOST_WINDOWS_API)
# error user defined NDNBOOST_POSIX_API or NDNBOOST_WINDOWS_API not supported
# endif
// NDNBOOST_POSIX_API or NDNBOOST_WINDOWS_API specify which API to use
// Cygwin/MinGW does not predefine _WIN32.
// Standalone MinGW and all other known Windows compilers do predefine _WIN32
// Compilers that predefine _WIN32 or __MINGW32__ do so for Windows 64-bit builds too.
# if defined(_WIN32) || defined(__CYGWIN__) // Windows default, including MinGW and Cygwin
# define NDNBOOST_WINDOWS_API
# else
# define NDNBOOST_POSIX_API
# endif
#endif // NDNBOOST_SYSTEM_API_CONFIG_HPP