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/* Copyright (C) 1991, 92, 93, 95, 96, 97, 98 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.
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   The GNU C Library is free software; you can redistribute it and/or
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   modify it under the terms of the GNU Library General Public License as
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   published by the Free Software Foundation; either version 2 of the
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   License, or (at your option) any later version.
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   The GNU C Library is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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   Library General Public License for more details.
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   You should have received a copy of the GNU Library General Public
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   License along with the GNU C Library; see the file COPYING.LIB.  If not,
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   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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   Boston, MA 02111-1307, USA.  */
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/* from glibc 2.1.2 MODIFIED */
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#ifndef _FEATURES_H
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#define _FEATURES_H     1
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/* These are defined by the user (or the compiler)
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   to specify the desired environment:
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   __STRICT_ANSI__      ISO Standard C.
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   _ISOC9X_SOURCE       Extensions to ISO C 89 from ISO C 9x.
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   _POSIX_SOURCE        IEEE Std 1003.1.
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   _POSIX_C_SOURCE      If ==1, like _POSIX_SOURCE; if >=2 add IEEE Std 1003.2;
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                        if >=199309L, add IEEE Std 1003.1b-1993;
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                        if >=199506L, add IEEE Std 1003.1c-1995
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   _XOPEN_SOURCE        Includes POSIX and XPG things.  Set to 500 if
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                        Single Unix conformance is wanted.
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   _XOPEN_SOURCE_EXTENDED XPG things and X/Open Unix extensions.
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   _LARGEFILE_SOURCE    Some more functions for correct standard I/O.
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   _LARGEFILE64_SOURCE  Additional functionality from LFS for large files.
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   _FILE_OFFSET_BITS=N  Select default filesystem interface.
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   _BSD_SOURCE          ISO C, POSIX, and 4.3BSD things.
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   _SVID_SOURCE         ISO C, POSIX, and SVID things.
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   _GNU_SOURCE          All of the above, plus GNU extensions.
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   _REENTRANT           Select additionally reentrant object.
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   _THREAD_SAFE         Same as _REENTRANT, often used by other systems.
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   The `-ansi' switch to the GNU C compiler defines __STRICT_ANSI__.
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   If none of these are defined, the default is all but _GNU_SOURCE.
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   If more than one of these are defined, they accumulate.
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   For example __STRICT_ANSI__, _POSIX_SOURCE and _POSIX_C_SOURCE
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   together give you ISO C, 1003.1, and 1003.2, but nothing else.
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   These are defined by this file and are used by the
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   header files to decide what to declare or define:
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   __USE_ISOC9X         Define ISO C 9X things.
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   __USE_POSIX          Define IEEE Std 1003.1 things.
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   __USE_POSIX2         Define IEEE Std 1003.2 things.
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   __USE_POSIX199309    Define IEEE Std 1003.1, and .1b things.
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   __USE_POSIX199506    Define IEEE Std 1003.1, .1b, .1c and .1i things.
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   __USE_XOPEN          Define XPG things.
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   __USE_XOPEN_EXTENDED Define X/Open Unix things.
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   __USE_UNIX98         Define Single Unix V2 things.
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   __USE_LARGEFILE64    Define LFS things with separate names.
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   __USE_FILE_OFFSET64  Define 64bit interface as default.
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   __USE_BSD            Define 4.3BSD things.
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   __USE_SVID           Define SVID things.
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   __USE_MISC           Define things common to BSD and System V Unix.
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   __USE_GNU            Define GNU extensions.
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   __USE_REENTRANT      Define reentrant/thread-safe *_r functions.
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   __FAVOR_BSD          Favor 4.3BSD things in cases of conflict.
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   The macros `__GNU_LIBRARY__', `__GLIBC__', and `__GLIBC_MINOR__' are
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   defined by this file unconditionally.  `__GNU_LIBRARY__' is provided
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   only for compatibility.  All new code should use the other symbols
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   to test for features.
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   All macros listed above as possibly being defined by this file are
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   explicitly undefined if they are not explicitly defined.
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   Feature-test macros that are not defined by the user or compiler
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   but are implied by the other feature-test macros defined (or by the
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   lack of any definitions) are defined by the file.  */
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/* Undefine everything, so we get a clean slate.  */
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#undef  __USE_ISOC9X
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#undef  __USE_POSIX
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#undef  __USE_POSIX2
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#undef  __USE_POSIX199309
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#undef  __USE_POSIX199506
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#undef  __USE_XOPEN
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#undef  __USE_XOPEN_EXTENDED
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#undef  __USE_UNIX98
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#undef  __USE_LARGEFILE
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#undef  __USE_LARGEFILE64
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#undef  __USE_FILE_OFFSET64
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#undef  __USE_BSD
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#undef  __USE_SVID
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#undef  __USE_MISC
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#undef  __USE_GNU
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#undef  __USE_REENTRANT
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#undef  __FAVOR_BSD
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#undef  __KERNEL_STRICT_NAMES
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/* Suppress kernel-name space pollution unless user expressedly asks
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   for it.  */
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#ifndef _LOOSE_KERNEL_NAMES
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# define __KERNEL_STRICT_NAMES
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#endif
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/* Always use ISO C things.  */
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#define __USE_ANSI      1
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/* If _BSD_SOURCE was defined by the user, favor BSD over POSIX.  */
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#if defined _BSD_SOURCE && \
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    !(defined _POSIX_SOURCE || defined _POSIX_C_SOURCE || \
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      defined _XOPEN_SOURCE || defined _XOPEN_SOURCE_EXTENDED || \
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      defined _GNU_SOURCE || defined _SVID_SOURCE)
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# define __FAVOR_BSD    1
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#endif
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/* If _GNU_SOURCE was defined by the user, turn on all the other features.  */
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#ifdef _GNU_SOURCE
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# undef  _ISOC9X_SOURCE
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# define _ISOC9X_SOURCE 1
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# undef  _POSIX_SOURCE
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# define _POSIX_SOURCE  1
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# undef  _POSIX_C_SOURCE
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# define _POSIX_C_SOURCE        199506L
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# undef  _XOPEN_SOURCE
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# define _XOPEN_SOURCE  500
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# undef  _XOPEN_SOURCE_EXTENDED
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# define _XOPEN_SOURCE_EXTENDED 1
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# undef  _LARGEFILE64_SOURCE
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# define _LARGEFILE64_SOURCE    1
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# undef  _BSD_SOURCE
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# define _BSD_SOURCE    1
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# undef  _SVID_SOURCE
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# define _SVID_SOURCE   1
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#endif
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/* If nothing (other than _GNU_SOURCE) is defined,
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   define _BSD_SOURCE and _SVID_SOURCE.  */
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#if (!defined __STRICT_ANSI__ && !defined _ISOC9X_SOURCE && \
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     !defined _POSIX_SOURCE && !defined _POSIX_C_SOURCE && \
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     !defined _XOPEN_SOURCE && !defined _XOPEN_SOURCE_EXTENDED && \
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     !defined _BSD_SOURCE && !defined _SVID_SOURCE)
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# define _BSD_SOURCE    1
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# define _SVID_SOURCE   1
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#endif
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/* This is to enable the ISO C 9x extension.  It will go away as soon
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   as this standard is officially released.  */
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#ifdef _ISOC9X_SOURCE
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# define __USE_ISOC9X   1
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#endif
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157
/* If none of the ANSI/POSIX macros are defined, use POSIX.1 and POSIX.2
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   (and IEEE Std 1003.1b-1993 unless _XOPEN_SOURCE is defined).  */
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#if (!defined __STRICT_ANSI__ && !defined _POSIX_SOURCE && \
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     !defined _POSIX_C_SOURCE)
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# define _POSIX_SOURCE  1
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# if defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) != 500
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#  define _POSIX_C_SOURCE       2
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# else
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#  define _POSIX_C_SOURCE       199506L
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# endif
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#endif
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#if defined _POSIX_SOURCE || _POSIX_C_SOURCE >= 1 || defined _XOPEN_SOURCE
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# define __USE_POSIX    1
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#endif
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173
#if defined _POSIX_C_SOURCE && _POSIX_C_SOURCE >= 2 || defined _XOPEN_SOURCE
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# define __USE_POSIX2   1
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#endif
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#if (_POSIX_C_SOURCE - 0) >= 199309L
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# define __USE_POSIX199309      1
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#endif
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181
#if (_POSIX_C_SOURCE - 0) >= 199506L
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# define __USE_POSIX199506      1
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#endif
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185
#ifdef  _XOPEN_SOURCE
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# define __USE_XOPEN    1
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# if (_XOPEN_SOURCE - 0) == 500
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#  define __USE_XOPEN_EXTENDED  1
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#  define __USE_UNIX98  1
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#  undef _LARGEFILE_SOURCE
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#  define _LARGEFILE_SOURCE     1
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# else
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#  ifdef _XOPEN_SOURCE_EXTENDED
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#   define __USE_XOPEN_EXTENDED 1
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#  endif
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# endif
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#endif
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199
#ifdef _LARGEFILE_SOURCE
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# define __USE_LARGEFILE        1
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#endif
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203
#ifdef _LARGEFILE64_SOURCE
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# define __USE_LARGEFILE64      1
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#endif
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#if defined _FILE_OFFSET_BITS && _FILE_OFFSET_BITS == 64
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# define __USE_FILE_OFFSET64    1
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#endif
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#if defined _BSD_SOURCE || defined _SVID_SOURCE
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# define __USE_MISC     1
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#endif
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#ifdef  _BSD_SOURCE
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# define __USE_BSD      1
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#endif
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#ifdef  _SVID_SOURCE
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# define __USE_SVID     1
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#endif
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#ifdef  _GNU_SOURCE
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# define __USE_GNU      1
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#endif
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#if defined _REENTRANT || defined _THREAD_SAFE
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# define __USE_REENTRANT        1
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#endif
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/* We do support the IEC 559 math functionality, real and complex.  */
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#define __STDC_IEC_559__                1
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#define __STDC_IEC_559_COMPLEX__        1
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/* This macro indicates that the installed library is the GNU C Library.
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   For historic reasons the value now is 6 and this will stay from now
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   on.  The use of this variable is deprecated.  Use __GLIBC__ and
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   __GLIBC_MINOR__ now (see below) when you want to test for a specific
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   GNU C library version and use the values in <gnu/lib-names.h> to get
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   the sonames of the shared libraries.  */
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//#undef  __GNU_LIBRARY__
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//#define __GNU_LIBRARY__ 6
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244
/* Major and minor version number of the GNU C library package.  Use
245
   these macros to test for features in specific releases.  */
246
//#define       __GLIBC__       2
247
//#define       __GLIBC_MINOR__ 1
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249
/* This is here only because every header file already includes this one.  */
250
#ifndef __ASSEMBLER__
251
# include <sys/cdefs.h>
252
 
253
/* If we don't have __REDIRECT, prototypes will be missing if
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   __USE_FILE_OFFSET64 but not __USE_LARGEFILE[64]. */
255
# if defined __USE_FILE_OFFSET64 && !defined __REDIRECT
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#  define __USE_LARGEFILE
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#  define __USE_LARGEFILE64
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# endif
259
 
260
#endif  /* !ASSEMBLER */
261
 
262
/* Decide whether we can define 'extern inline' functions in headers.  */
263
#if defined __GNUC__ && (__GNUC__ > 2 || __GNUC__ == 2 && __GNUC_MINOR__ >= 7)\
264
    && defined __OPTIMIZE__ && !defined __OPTIMIZE_SIZE__
265
# define __USE_EXTERN_INLINES   1
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#endif
267
 
268
/* This is here only because every header file already includes this one.  */
269
#ifndef _LIBC
270
/* Get the definitions of all the appropriate `__stub_FUNCTION' symbols.
271
   <gnu/stubs.h> contains `#define __stub_FUNCTION' when FUNCTION is a stub
272
   which will always return failure (and set errno to ENOSYS).
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274
   We avoid including <gnu/stubs.h> when compiling the C library itself to
275
   avoid a dependency loop.  stubs.h depends on every object file.  If
276
   this #include were done for the library source code, then every object
277
   file would depend on stubs.h.  */
278
 
279
//#include <gnu/stubs.h>
280
#endif
281
 
282
#endif  /* features.h  */