//  (C) Copyright John Maddock 2001.

//  (C) Copyright Jens Maurer 2001.

//  Use, modification and distribution are subject to the

//  Boost Software License, Version 1.0. (See accompanying file

//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

//  See http://www.boost.org for most recent version.

//  config for libstdc++ v3

//  not much to go in here:

#ifdef __GLIBCXX__

#define BOOST_STDLIB "GNU libstdc++ version " BOOST_STRINGIZE(__GLIBCXX__)

#else

#define BOOST_STDLIB "GNU libstdc++ version " BOOST_STRINGIZE(__GLIBCPP__)

#endif

#if !defined(_GLIBCPP_USE_WCHAR_T) && !defined(_GLIBCXX_USE_WCHAR_T)

#  define BOOST_NO_CWCHAR

#  define BOOST_NO_CWCTYPE

#  define BOOST_NO_STD_WSTRING

#  define BOOST_NO_STD_WSTREAMBUF

#endif

#if defined(__osf__) && !defined(_REENTRANT) \

  && ( defined(_GLIBCXX_HAVE_GTHR_DEFAULT) || defined(_GLIBCPP_HAVE_GTHR_DEFAULT) )

// GCC 3 on Tru64 forces the definition of _REENTRANT when any std lib header

// file is included, therefore for consistency we define it here as well.

#  define _REENTRANT

#endif

#ifdef __GLIBCXX__ // gcc 3.4 and greater:

#  if defined(_GLIBCXX_HAVE_GTHR_DEFAULT) \

        || defined(_GLIBCXX__PTHREADS)

      //

      // If the std lib has thread support turned on, then turn it on in Boost

      // as well.  We do this because some gcc-3.4 std lib headers define _REENTANT

      // while others do not...

      //

#     define BOOST_HAS_THREADS

#  else

#     define BOOST_DISABLE_THREADS

#  endif

#elif defined(__GLIBCPP__) \

        && !defined(_GLIBCPP_HAVE_GTHR_DEFAULT) \

        && !defined(_GLIBCPP__PTHREADS)

   // disable thread support if the std lib was built single threaded:

#  define BOOST_DISABLE_THREADS

#endif

#if (defined(linux) || defined(__linux) || defined(__linux__)) && defined(__arm__) && defined(_GLIBCPP_HAVE_GTHR_DEFAULT)

// linux on arm apparently doesn't define _REENTRANT

// so just turn on threading support whenever the std lib is thread safe:

#  define BOOST_HAS_THREADS

#endif

#if !defined(_GLIBCPP_USE_LONG_LONG) \

    && !defined(_GLIBCXX_USE_LONG_LONG)\

    && defined(BOOST_HAS_LONG_LONG)

// May have been set by compiler/*.hpp, but "long long" without library

// support is useless.

#  undef BOOST_HAS_LONG_LONG

#endif

#if defined(__GLIBCXX__) || (defined(__GLIBCPP__) && __GLIBCPP__>=20020514) // GCC >= 3.1.0

#  define BOOST_STD_EXTENSION_NAMESPACE __gnu_cxx

#  define BOOST_HAS_SLIST

#  define BOOST_HAS_HASH

#  define BOOST_SLIST_HEADER <ext/slist>

# if !defined(__GNUC__) || __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 3)

#   define BOOST_HASH_SET_HEADER <ext/hash_set>

#   define BOOST_HASH_MAP_HEADER <ext/hash_map>

# else

#   define BOOST_HASH_SET_HEADER <backward/hash_set>

#   define BOOST_HASH_MAP_HEADER <backward/hash_map>

# endif

#endif

#ifndef __GXX_EXPERIMENTAL_CXX0X__

#  define BOOST_NO_STD_UNORDERED

#endif