--- /dev/null
+/* Define POSIX options for Linux.
+ Copyright (C) 1996-2001, 2002, 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#ifndef _POSIX_OPT_H
+#define _POSIX_OPT_H 1
+
+/* Job control is supported. */
+#define _POSIX_JOB_CONTROL 1
+
+/* Processes have a saved set-user-ID and a saved set-group-ID. */
+#define _POSIX_SAVED_IDS 1
+
+/* Priority scheduling is supported. */
+#define _POSIX_PRIORITY_SCHEDULING 200112L
+
+/* Synchronizing file data is supported. */
+#define _POSIX_SYNCHRONIZED_IO 200112L
+
+/* The fsync function is present. */
+#define _POSIX_FSYNC 200112L
+
+/* Mapping of files to memory is supported. */
+#define _POSIX_MAPPED_FILES 200112L
+
+/* Locking of all memory is supported. */
+#define _POSIX_MEMLOCK 200112L
+
+/* Locking of ranges of memory is supported. */
+#define _POSIX_MEMLOCK_RANGE 200112L
+
+/* Setting of memory protections is supported. */
+#define _POSIX_MEMORY_PROTECTION 200112L
+
+/* Only root can change owner of file. */
+#define _POSIX_CHOWN_RESTRICTED 1
+
+/* `c_cc' member of 'struct termios' structure can be disabled by
+ using the value _POSIX_VDISABLE. */
+#define _POSIX_VDISABLE '\0'
+
+/* Filenames are not silently truncated. */
+#define _POSIX_NO_TRUNC 1
+
+/* X/Open realtime support is available. */
+#define _XOPEN_REALTIME 1
+
+/* XPG4.2 shared memory is supported. */
+#define _XOPEN_SHM 1
+
+/* Tell we have POSIX threads. */
+#define _POSIX_THREADS 200112L
+
+/* We have the reentrant functions described in POSIX. */
+#define _POSIX_REENTRANT_FUNCTIONS 1
+#define _POSIX_THREAD_SAFE_FUNCTIONS 200112L
+
+/* We support user-defined stack sizes. */
+#define _POSIX_THREAD_ATTR_STACKSIZE 200112L
+
+/* We support user-defined stacks. */
+#define _POSIX_THREAD_ATTR_STACKADDR 200112L
+
+/* We support POSIX.1b semaphores. */
+#define _POSIX_SEMAPHORES 200112L
+
+/* Real-time signals are supported. */
+#define _POSIX_REALTIME_SIGNALS 200112L
+
+/* We support asynchronous I/O. */
+#define _POSIX_ASYNCHRONOUS_IO 200112L
+#define _POSIX_ASYNC_IO 1
+/* Alternative name for Unix98. */
+#define _LFS_ASYNCHRONOUS_IO 1
+
+/* The LFS support in asynchronous I/O is also available. */
+#define _LFS64_ASYNCHRONOUS_IO 1
+
+/* The rest of the LFS is also available. */
+#define _LFS_LARGEFILE 1
+#define _LFS64_LARGEFILE 1
+#define _LFS64_STDIO 1
+
+/* POSIX shared memory objects are implemented. */
+#define _POSIX_SHARED_MEMORY_OBJECTS 200112L
+
+/* CPU-time clocks supported. */
+#define _POSIX_CPUTIME 200112L
+
+/* We support the clock also in threads. */
+#define _POSIX_THREAD_CPUTIME 200112L
+
+/* GNU libc provides regular expression handling. */
+#define _POSIX_REGEXP 1
+
+/* Reader/Writer locks are available. */
+#define _POSIX_READER_WRITER_LOCKS 200112L
+
+/* We have a POSIX shell. */
+#define _POSIX_SHELL 1
+
+/* We support the Timeouts option. */
+#define _POSIX_TIMEOUTS 200112L
+
+/* We support spinlocks. */
+#define _POSIX_SPIN_LOCKS 200112L
+
+/* The `spawn' function family is supported. */
+#define _POSIX_SPAWN 200112L
+
+/* We have POSIX timers. */
+#define _POSIX_TIMERS 200112L
+
+/* The barrier functions are available. */
+#define _POSIX_BARRIERS 200112L
+
+/* POSIX message queues are not yet supported. */
+#undef _POSIX_MESSAGE_PASSING
+
+/* Thread process-shared synchronization is supported. */
+#define _POSIX_THREAD_PROCESS_SHARED 200112L
+
+/* The monotonic clock might be available. */
+#define _POSIX_MONOTONIC_CLOCK 0
+
+/* The clock selection interfaces are available. */
+#define _POSIX_CLOCK_SELECTION 200112L
+
+#endif /* posix_opt.h */