| 1 | /* Define POSIX options for Linux. |
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| 2 | Copyright (C) 1996,1997,1998,1999,2000,2001 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Library General Public License as |
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| 7 | published by the Free Software Foundation; either version 2 of the |
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| 8 | License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Library General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Library General Public |
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| 16 | License along with the GNU C Library; see the file COPYING.LIB. If not, |
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| 17 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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| 18 | Boston, MA 02111-1307, USA. */ |
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| 19 | |
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| 20 | #ifndef _POSIX_OPT_H |
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| 21 | #define _POSIX_OPT_H 1 |
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| 22 | |
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| 23 | /* Job control is supported. */ |
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| 24 | #define _POSIX_JOB_CONTROL 1 |
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| 25 | |
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| 26 | /* Processes have a saved set-user-ID and a saved set-group-ID. */ |
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| 27 | #define _POSIX_SAVED_IDS 1 |
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| 28 | |
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| 29 | /* Priority scheduling is supported. */ |
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| 30 | #define _POSIX_PRIORITY_SCHEDULING 1 |
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| 31 | |
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| 32 | /* Synchronizing file data is supported. */ |
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| 33 | #define _POSIX_SYNCHRONIZED_IO 1 |
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| 34 | |
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| 35 | /* The fsync function is present. */ |
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| 36 | #define _POSIX_FSYNC 1 |
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| 37 | |
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| 38 | /* Mapping of files to memory is supported. */ |
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| 39 | #define _POSIX_MAPPED_FILES 1 |
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| 40 | |
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| 41 | /* Locking of all memory is supported. */ |
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| 42 | #ifdef __ARCH_HAS_MMU__ |
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| 43 | # define _POSIX_MEMLOCK 1 |
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| 44 | #else |
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| 45 | # undef _POSIX_MEMLOCK |
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| 46 | #endif |
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| 47 | |
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| 48 | /* Locking of ranges of memory is supported. */ |
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| 49 | #ifdef __ARCH_HAS_MMU__ |
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| 50 | # define _POSIX_MEMLOCK_RANGE 1 |
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| 51 | #else |
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| 52 | # define _POSIX_MEMLOCK_RANGE |
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| 53 | #endif |
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| 54 | |
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| 55 | /* Setting of memory protections is supported. */ |
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| 56 | #ifdef __ARCH_HAS_MMU__ |
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| 57 | # define _POSIX_MEMORY_PROTECTION 1 |
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| 58 | #else |
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| 59 | # undef _POSIX_MEMORY_PROTECTION |
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| 60 | #endif |
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| 61 | |
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| 62 | /* Implementation supports `poll' function. */ |
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| 63 | #define _POSIX_POLL 1 |
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| 64 | |
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| 65 | /* Implementation supports `select' and `pselect' functions. */ |
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| 66 | #define _POSIX_SELECT 1 |
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| 67 | |
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| 68 | /* Only root can change owner of file. */ |
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| 69 | #define _POSIX_CHOWN_RESTRICTED 1 |
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| 70 | |
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| 71 | /* `c_cc' member of 'struct termios' structure can be disabled by |
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| 72 | using the value _POSIX_VDISABLE. */ |
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| 73 | #define _POSIX_VDISABLE '\0' |
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| 74 | |
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| 75 | /* Filenames are not silently truncated. */ |
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| 76 | #define _POSIX_NO_TRUNC 1 |
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| 77 | |
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| 78 | /* X/Open realtime support is available. */ |
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| 79 | #define _XOPEN_REALTIME 1 |
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| 80 | |
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| 81 | /* X/Open realtime thread support is available. */ |
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| 82 | #ifdef __UCLIBC_HAS_THREADS__ |
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| 83 | # define _XOPEN_REALTIME_THREADS 1 |
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| 84 | #else |
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| 85 | # undef _XOPEN_REALTIME_THREADS |
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| 86 | #endif |
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| 87 | |
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| 88 | /* XPG4.2 shared memory is supported. */ |
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| 89 | #define _XOPEN_SHM 1 |
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| 90 | |
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| 91 | /* Tell we have POSIX threads. */ |
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| 92 | #ifdef __UCLIBC_HAS_THREADS__ |
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| 93 | # define _POSIX_THREADS 1 |
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| 94 | #else |
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| 95 | # undef _POSIX_THREADS |
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| 96 | #endif |
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| 97 | |
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| 98 | /* We have the reentrant functions described in POSIX. */ |
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| 99 | #ifdef __UCLIBC_HAS_THREADS__ |
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| 100 | # define _POSIX_REENTRANT_FUNCTIONS 1 |
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| 101 | # define _POSIX_THREAD_SAFE_FUNCTIONS 1 |
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| 102 | #else |
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| 103 | # undef _POSIX_REENTRANT_FUNCTIONS |
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| 104 | # undef _POSIX_THREAD_SAFE_FUNCTIONS |
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| 105 | #endif |
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| 106 | |
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| 107 | /* We provide priority scheduling for threads. */ |
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| 108 | #define _POSIX_THREAD_PRIORITY_SCHEDULING 1 |
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| 109 | |
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| 110 | /* We support user-defined stack sizes. */ |
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| 111 | #define _POSIX_THREAD_ATTR_STACKSIZE 1 |
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| 112 | |
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| 113 | /* We support user-defined stacks. */ |
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| 114 | #define _POSIX_THREAD_ATTR_STACKADDR 1 |
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| 115 | |
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| 116 | /* We support POSIX.1b semaphores, but only the non-shared form for now. */ |
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| 117 | #ifdef __UCLIBC_HAS_THREADS__ |
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| 118 | # define _POSIX_SEMAPHORES 1 |
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| 119 | #else |
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| 120 | # undef _POSIX_SEMAPHORES |
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| 121 | #endif |
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| 122 | |
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| 123 | /* Real-time signals are supported. */ |
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| 124 | #define _POSIX_REALTIME_SIGNALS 1 |
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| 125 | |
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| 126 | /* We support asynchronous I/O. */ |
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| 127 | #define _POSIX_ASYNCHRONOUS_IO 1 |
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| 128 | #define _POSIX_ASYNC_IO 1 |
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| 129 | /* Alternative name for Unix98. */ |
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| 130 | #define _LFS_ASYNCHRONOUS_IO 1 |
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| 131 | |
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| 132 | /* The LFS support in asynchronous I/O is also available. */ |
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| 133 | #ifdef __UCLIBC_HAS_LFS__ |
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| 134 | # define _LFS64_ASYNCHRONOUS_IO 1 |
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| 135 | #else |
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| 136 | # undef _LFS64_ASYNCHRONOUS_IO |
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| 137 | #endif |
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| 138 | |
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| 139 | /* The rest of the LFS is also available. */ |
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| 140 | #ifdef __UCLIBC_HAS_LFS__ |
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| 141 | # define _LFS_LARGEFILE 1 |
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| 142 | # define _LFS64_LARGEFILE 1 |
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| 143 | # define _LFS64_STDIO 1 |
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| 144 | #else |
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| 145 | # undef _LFS_LARGEFILE |
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| 146 | # undef _LFS64_LARGEFILE |
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| 147 | # undef _LFS64_STDIO |
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| 148 | #endif |
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| 149 | |
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| 150 | /* POSIX shared memory objects are implemented. */ |
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| 151 | #define _POSIX_SHARED_MEMORY_OBJECTS 1 |
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| 152 | |
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| 153 | /* GNU libc provides regular expression handling. */ |
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| 154 | #ifdef __UCLIBC_HAS_REGEX__ |
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| 155 | # define _POSIX_REGEXP 1 |
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| 156 | #else |
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| 157 | # undef _POSIX_REGEXP |
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| 158 | #endif |
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| 159 | |
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| 160 | #if defined(__i386__) |
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| 161 | /* CPU-time clocks supported. */ |
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| 162 | #define _POSIX_CPUTIME 200912L |
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| 163 | |
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| 164 | /* We support the clock also in threads. */ |
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| 165 | #define _POSIX_THREAD_CPUTIME 200912L |
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| 166 | #endif |
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| 167 | |
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| 168 | /* Reader/Writer locks are available. */ |
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| 169 | #define _POSIX_READER_WRITER_LOCKS 200912L |
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| 170 | |
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| 171 | /* We have a POSIX shell. */ |
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| 172 | #define _POSIX_SHELL 1 |
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| 173 | |
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| 174 | /* We support the Timeouts option. */ |
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| 175 | #define _POSIX_TIMEOUTS 200912L |
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| 176 | |
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| 177 | /* We support spinlocks. */ |
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| 178 | #define _POSIX_SPIN_LOCKS 200912L |
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| 179 | |
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| 180 | /* The `spawn' function family is supported. */ |
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| 181 | #define _POSIX_SPAWN 200912L |
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| 182 | |
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| 183 | /* We have POSIX timers. */ |
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| 184 | #define _POSIX_TIMERS 1 |
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| 185 | |
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| 186 | /* The barrier functions are available. */ |
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| 187 | #define _POSIX_BARRIERS 200912L |
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| 188 | |
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| 189 | /* POSIX message queues are not yet supported. */ |
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| 190 | #undef _POSIX_MESSAGE_PASSING |
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| 191 | |
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| 192 | #endif /* posix_opt.h */ |
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