Chris@16: //  boost/system/api_config.hpp  -------------------------------------------------------//
Chris@16: 
Chris@16: //  Copyright Beman Dawes 2003, 2006, 2010
Chris@16: 
Chris@16: //  Distributed under the Boost Software License, Version 1.0.
Chris@16: //  See http://www.boost.org/LICENSE_1_0.txt
Chris@16: 
Chris@16: //  See http://www.boost.org/libs/system for documentation.
Chris@16: 
Chris@16: //--------------------------------------------------------------------------------------//
Chris@16: 
Chris@16: //  Boost.System calls operating system API functions to implement system error category
Chris@16: //  functions. Usually there is no question as to which API is to be used.
Chris@16: //
Chris@16: //  In the case of MinGW or Cygwin/MinGW, however, both POSIX and Windows API's are
Chris@16: //  available. Chaos ensues if other code thinks one is in use when Boost.System was
Chris@16: //  actually built with the other. This header centralizes the API choice and prevents
Chris@16: //  user definition of API macros, thus elminating the possibility of mismatches and the
Chris@16: //  need to test configurations with little or no practical value.
Chris@16: //
Chris@16: 
Chris@16: //--------------------------------------------------------------------------------------//
Chris@16: 
Chris@16: #ifndef BOOST_SYSTEM_API_CONFIG_HPP                  
Chris@16: #define BOOST_SYSTEM_API_CONFIG_HPP
Chris@16: 
Chris@16: # if defined(BOOST_POSIX_API) || defined(BOOST_WINDOWS_API)
Chris@16: #   error user defined BOOST_POSIX_API or BOOST_WINDOWS_API not supported
Chris@16: # endif
Chris@16: 
Chris@16: //  BOOST_POSIX_API or BOOST_WINDOWS_API specify which API to use
Chris@16: //    Cygwin/MinGW does not predefine _WIN32.
Chris@16: //    Standalone MinGW and all other known Windows compilers do predefine _WIN32
Chris@16: //    Compilers that predefine _WIN32 or __MINGW32__ do so for Windows 64-bit builds too.
Chris@16: 
Chris@16: # if defined(_WIN32) || defined(__CYGWIN__) // Windows default, including MinGW and Cygwin
Chris@16: #   define BOOST_WINDOWS_API
Chris@16: # else
Chris@16: #   define BOOST_POSIX_API 
Chris@16: # endif
Chris@16:                                      
Chris@16: #endif  // BOOST_SYSTEM_API_CONFIG_HPP