-// (C) Copyright Boost.org 2001. Permission to copy, use, modify, sell and
-// distribute this software is granted provided this copyright notice appears
-// in all copies. This software is provided "as is" without express or implied
-// warranty, and with no claim as to its suitability for any purpose.
+// (C) Copyright John Maddock 2001 - 2003.
+// (C) Copyright Jens Maurer 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)
// See http://www.boost.org for most recent version.
#define BOOST_HAS_UNISTD_H
#include <boost/config/posix_features.hpp>
+//
+// pthreads don't actually work with gcc unless _PTHREADS is defined:
+//
+#if defined(__GNUC__) && defined(_POSIX_THREADS) && !defined(_PTHREADS)
+# undef BOOST_HAS_PTHREADS
+#endif
+
+