//  (C) Copyright John Maddock 2003. 

//  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)

#ifndef BOOST_CONFIG_REQUIRES_THREADS_HPP

#define BOOST_CONFIG_REQUIRES_THREADS_HPP

#ifndef BOOST_CONFIG_HPP

#  include <boost/config.hpp>

#endif

#if defined(BOOST_DISABLE_THREADS)

//

// special case to handle versions of gcc which don't currently support threads:

//

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

//

// this is checked up to gcc 3.3:

//

#if defined(__sgi) || defined(__hpux)

#  error "Multi-threaded programs are not supported by gcc on HPUX or Irix (last checked with gcc 3.3)"

#endif

#endif

#  error "Threading support unavaliable: it has been explicitly disabled with BOOST_DISABLE_THREADS"

#elif !defined(BOOST_HAS_THREADS)

# if defined __COMO__

//  Comeau C++

#   error "Compiler threading support is not turned on. Please set the correct command line options for threading: -D_MT (Windows) or -D_REENTRANT (Unix)"

#elif defined(__INTEL_COMPILER) || defined(__ICL) || defined(__ICC) || defined(__ECC)

//  Intel

#ifdef _WIN32

#  error "Compiler threading support is not turned on. Please set the correct command line options for threading: either /MT /MTd /MD or /MDd"

#else

#   error "Compiler threading support is not turned on. Please set the correct command line options for threading: -openmp"

#endif

# elif defined __GNUC__

//  GNU C++:

#   error "Compiler threading support is not turned on. Please set the correct command line options for threading: -pthread (Linux), -pthreads (Solaris) or -mthreads (Mingw32)"

#elif defined __sgi

//  SGI MIPSpro C++

#   error "Compiler threading support is not turned on. Please set the correct command line options for threading: -D_SGI_MP_SOURCE"

#elif defined __DECCXX

//  Compaq Tru64 Unix cxx

#   error "Compiler threading support is not turned on. Please set the correct command line options for threading: -pthread"

#elif defined __BORLANDC__

//  Borland

#   error "Compiler threading support is not turned on. Please set the correct command line options for threading: -tWM"

#elif defined  __MWERKS__

//  Metrowerks CodeWarrior

#   error "Compiler threading support is not turned on. Please set the correct command line options for threading: either -runtime sm, -runtime smd, -runtime dm, or -runtime dmd"

#elif defined  __SUNPRO_CC

//  Sun Workshop Compiler C++

#   error "Compiler threading support is not turned on. Please set the correct command line options for threading: -mt"

#elif defined __HP_aCC

//  HP aCC

#   error "Compiler threading support is not turned on. Please set the correct command line options for threading: -mt"

#elif defined(__IBMCPP__)

//  IBM Visual Age

#   error "Compiler threading support is not turned on. Please compile the code with the xlC_r compiler"

#elif defined _MSC_VER

//  Microsoft Visual C++

//

//  Must remain the last #elif since some other vendors (Metrowerks, for

//  example) also #define _MSC_VER

#  error "Compiler threading support is not turned on. Please set the correct command line options for threading: either /MT /MTd /MD or /MDd"

#else

#  error "Compiler threading support is not turned on.  Please consult your compiler's documentation for the appropriate options to use"

#endif // compilers

#endif // BOOST_HAS_THREADS

#endif // BOOST_CONFIG_REQUIRES_THREADS_HPP