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1 | #ifndef BOOST_SERIALIZATION_FORCE_INCLUDE_HPP |
2 | #define BOOST_SERIALIZATION_FORCE_INCLUDE_HPP | |
3 | ||
4 | // MS compatible compilers support #pragma once | |
5 | #if defined(_MSC_VER) | |
6 | # pragma once | |
7 | #endif | |
8 | ||
9 | /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8 | |
10 | // force_include.hpp: | |
11 | ||
12 | // (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . | |
13 | // Use, modification and distribution is subject to the Boost Software | |
14 | // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at | |
15 | // http://www.boost.org/LICENSE_1_0.txt) | |
16 | ||
17 | // See http://www.boost.org for updates, documentation, and revision history. | |
18 | ||
19 | #include <boost/config.hpp> | |
20 | ||
21 | // the following help macro is to guarentee that certain coded | |
22 | // is not removed by over-eager linker optimiser. In certain cases | |
23 | // we create static objects must be created but are actually never | |
24 | // referenced - creation has a side-effect such as global registration | |
25 | // which is important to us. We make an effort to refer these objects | |
26 | // so that a smart linker won't remove them as being unreferenced. | |
27 | // In microsoft compilers, inlining the code that does the referring | |
28 | // means the code gets lost and the static object is not included | |
29 | // in the library and hence never registered. This manifests itself | |
30 | // in an ungraceful crash at runtime when (and only when) built in | |
31 | // release mode. | |
32 | ||
33 | #if defined(BOOST_HAS_DECLSPEC) && !defined(__COMO__) | |
34 | # define BOOST_DLLEXPORT __declspec(dllexport) | |
35 | #elif ! defined(_WIN32) && ! defined(_WIN64) | |
36 | # if defined(__MWERKS__) | |
37 | # define BOOST_DLLEXPORT __declspec(dllexport) | |
38 | # elif defined(__GNUC__) && (__GNUC__ >= 3) | |
39 | # define BOOST_USED __attribute__ ((__used__)) | |
40 | # elif defined(__IBMCPP__) && (__IBMCPP__ >= 1110) | |
41 | # define BOOST_USED __attribute__ ((__used__)) | |
42 | # elif defined(__INTEL_COMPILER) && (BOOST_INTEL_CXX_VERSION >= 800) | |
43 | # define BOOST_USED __attribute__ ((__used__)) | |
44 | # endif | |
45 | #endif | |
46 | ||
47 | #ifndef BOOST_USED | |
48 | # define BOOST_USED | |
49 | #endif | |
50 | ||
51 | #ifndef BOOST_DLLEXPORT | |
52 | # define BOOST_DLLEXPORT | |
53 | #endif | |
54 | ||
55 | #endif // BOOST_SERIALIZATION_FORCE_INCLUDE_HPP |