boost/system/config.hpp

   1 //  boost/system/config.hpp  -------------------------------------------------//
   2
   3 //  Copyright Beman Dawes 2003, 2006
   4
   5 //  Distributed under the Boost Software License, Version 1.0. (See accompanying
   6 //  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   7
   8 //  See http://www.boost.org/libs/system for documentation.
   9
  10 #ifndef BOOST_SYSTEM_CONFIG_HPP
  11 #define BOOST_SYSTEM_CONFIG_HPP
  12
  13 #include <boost/config.hpp>
  14
  15 //  BOOST_POSIX_API or BOOST_WINDOWS_API specify which API to use.
  16 //  If not specified, a sensible default will be applied.
  17
  18 # if defined( BOOST_WINDOWS_API ) && defined( BOOST_POSIX_API )
  19 #   error both BOOST_WINDOWS_API and BOOST_POSIX_API are defined
  20 # elif !defined( BOOST_WINDOWS_API ) && !defined( BOOST_POSIX_API )
  21 #   if defined(_WIN32) || defined(__WIN32__) || defined(WIN32) || defined(__CYGWIN__)
  22 #     define BOOST_WINDOWS_API
  23 #   else
  24 #     define BOOST_POSIX_API
  25 #   endif
  26 # endif
  27
  28 //  enable dynamic linking on Windows  ---------------------------------------//
  29
  30 //#  if (defined(BOOST_ALL_DYN_LINK) || defined(BOOST_SYSTEM_DYN_LINK)) && defined(__BORLANDC__) && defined(__WIN32__)
  31 //#    error Dynamic linking Boost.System does not work for Borland; use static linking instead
  32 //#  endif
  33
  34 #ifdef BOOST_HAS_DECLSPEC // defined in config system
  35 // we need to import/export our code only if the user has specifically
  36 // asked for it by defining either BOOST_ALL_DYN_LINK if they want all boost
  37 // libraries to be dynamically linked, or BOOST_SYSTEM_DYN_LINK
  38 // if they want just this one to be dynamically liked:
  39 #if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_SYSTEM_DYN_LINK)
  40 // export if this is our own source, otherwise import:
  41 #ifdef BOOST_SYSTEM_SOURCE
  42 # define BOOST_SYSTEM_DECL __declspec(dllexport)
  43 #else
  44 # define BOOST_SYSTEM_DECL __declspec(dllimport)
  45 #endif  // BOOST_SYSTEM_SOURCE
  46 #endif  // DYN_LINK
  47 #endif  // BOOST_HAS_DECLSPEC
  48 //
  49 // if BOOST_SYSTEM_DECL isn't defined yet define it now:
  50 #ifndef BOOST_SYSTEM_DECL
  51 #define BOOST_SYSTEM_DECL
  52 #endif
  53
  54 //  enable automatic library variant selection  ------------------------------//
  55
  56 #if !defined(BOOST_SYSTEM_SOURCE) && !defined(BOOST_ALL_NO_LIB) && !defined(BOOST_SYSTEM_NO_LIB)
  57 //
  58 // Set the name of our library, this will get undef'ed by auto_link.hpp
  59 // once it's done with it:
  60 //
  61 #define BOOST_LIB_NAME boost_system
  62 //
  63 // If we're importing code from a dll, then tell auto_link.hpp about it:
  64 //
  65 #if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_SYSTEM_DYN_LINK)
  66 #  define BOOST_DYN_LINK
  67 #endif
  68 //
  69 // And include the header that does the work:
  70 //
  71 #include <boost/config/auto_link.hpp>
  72 #endif  // auto-linking disabled
  73
  74 #endif // BOOST_SYSTEM_CONFIG_HPP
  75