]>
Commit | Line | Data |
---|---|---|
7c673cae FG |
1 | // boost/system/api_config.hpp -------------------------------------------------------// |
2 | ||
3 | // Copyright Beman Dawes 2003, 2006, 2010 | |
4 | ||
5 | // Distributed under the Boost Software License, Version 1.0. | |
6 | // See http://www.boost.org/LICENSE_1_0.txt | |
7 | ||
8 | // See http://www.boost.org/libs/system for documentation. | |
9 | ||
10 | //--------------------------------------------------------------------------------------// | |
11 | ||
12 | // Boost.System calls operating system API functions to implement system error category | |
13 | // functions. Usually there is no question as to which API is to be used. | |
14 | // | |
15 | // In the case of MinGW or Cygwin/MinGW, however, both POSIX and Windows API's are | |
16 | // available. Chaos ensues if other code thinks one is in use when Boost.System was | |
17 | // actually built with the other. This header centralizes the API choice and prevents | |
18 | // user definition of API macros, thus elminating the possibility of mismatches and the | |
19 | // need to test configurations with little or no practical value. | |
20 | // | |
21 | ||
22 | //--------------------------------------------------------------------------------------// | |
23 | ||
24 | #ifndef BOOST_SYSTEM_API_CONFIG_HPP | |
25 | #define BOOST_SYSTEM_API_CONFIG_HPP | |
26 | ||
27 | # if defined(BOOST_POSIX_API) || defined(BOOST_WINDOWS_API) | |
28 | # error user defined BOOST_POSIX_API or BOOST_WINDOWS_API not supported | |
29 | # endif | |
30 | ||
31 | // BOOST_POSIX_API or BOOST_WINDOWS_API specify which API to use | |
32 | // Cygwin/MinGW does not predefine _WIN32. | |
33 | // Standalone MinGW and all other known Windows compilers do predefine _WIN32 | |
34 | // Compilers that predefine _WIN32 or __MINGW32__ do so for Windows 64-bit builds too. | |
35 | ||
36 | # if defined(_WIN32) || defined(__CYGWIN__) // Windows default, including MinGW and Cygwin | |
37 | # define BOOST_WINDOWS_API | |
38 | # else | |
39 | # define BOOST_POSIX_API | |
40 | # endif | |
41 | ||
42 | #endif // BOOST_SYSTEM_API_CONFIG_HPP |