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https://github.com/c64scene-ar/llvm-6502.git
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67 lines
2.7 KiB
C++
67 lines
2.7 KiB
C++
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// (C) Copyright Boost.org 2001. Permission to copy, use, modify, sell and
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// distribute this software is granted provided this copyright notice appears
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// in all copies. This software is provided "as is" without express or implied
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// warranty, and with no claim as to its suitability for any purpose.
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// See http://www.boost.org for most recent version.
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// All POSIX feature tests go in this file:
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# ifdef BOOST_HAS_UNISTD_H
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# include <unistd.h>
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// XOpen has <nl_types.h>, but is this the correct version check?
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# if defined(_XOPEN_VERSION) && (_XOPEN_VERSION >= 3)
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# define BOOST_HAS_NL_TYPES_H
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# endif
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// POSIX version 6 requires <stdint.h>
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# if defined(_POSIX_VERSION) && (_POSIX_VERSION >= 200100)
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# define BOOST_HAS_STDINT_H
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# endif
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// POSIX defines _POSIX_THREADS > 0 for pthread support,
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// however some platforms define _POSIX_THREADS without
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// a value, hence the (_POSIX_THREADS+0 >= 0) check.
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// Strictly speaking this may catch platforms with a
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// non-functioning stub <pthreads.h>, but such occurrences should
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// occur very rarely if at all.
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# if defined(_POSIX_THREADS) && (_POSIX_THREADS+0 >= 0) && !defined(BOOST_HAS_WINTHREADS)
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# define BOOST_HAS_PTHREADS
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# endif
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// BOOST_HAS_NANOSLEEP:
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// This is predicated on _POSIX_TIMERS or _XOPEN_REALTIME:
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# if (defined(_POSIX_TIMERS) && (_POSIX_TIMERS+0 >= 0)) \
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|| (defined(_XOPEN_REALTIME) && (_XOPEN_REALTIME+0 >= 0))
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# define BOOST_HAS_NANOSLEEP
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# endif
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// BOOST_HAS_CLOCK_GETTIME:
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// This is predicated on _POSIX_TIMERS (also on _XOPEN_REALTIME
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// but at least one platform - linux - defines that flag without
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// defining clock_gettime):
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# if (defined(_POSIX_TIMERS) && (_POSIX_TIMERS+0 >= 0))
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# define BOOST_HAS_CLOCK_GETTIME
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# endif
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// BOOST_HAS_SCHED_YIELD:
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// This is predicated on _POSIX_PRIORITY_SCHEDULING or
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// on _POSIX_THREAD_PRIORITY_SCHEDULING or on _XOPEN_REALTIME.
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# if defined(_POSIX_PRIORITY_SCHEDULING) && (_POSIX_PRIORITY_SCHEDULING+0 > 0)\
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|| (defined(_POSIX_THREAD_PRIORITY_SCHEDULING) && (_POSIX_THREAD_PRIORITY_SCHEDULING+0 > 0))\
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|| (defined(_XOPEN_REALTIME) && (_XOPEN_REALTIME+0 >= 0))
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# define BOOST_HAS_SCHED_YIELD
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# endif
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// BOOST_HAS_GETTIMEOFDAY:
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// BOOST_HAS_PTHREAD_MUTEXATTR_SETTYPE:
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// These are predicated on _XOPEN_VERSION, and appears to be first released
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// in issue 4, version 2 (_XOPEN_VERSION > 500).
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# if defined(_XOPEN_VERSION) && (_XOPEN_VERSION+0 >= 500)
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# define BOOST_HAS_GETTIMEOFDAY
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# define BOOST_HAS_PTHREAD_MUTEXATTR_SETTYPE
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# endif
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# endif
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