FM / include

/usr/include

Name	Size	Mode	Actions
arpa/	-	0755	rm
asm/	-	0755	rm
asm-generic/	-	0755	rm
bits/	-	0755	rm
bsock/	-	0755	rm
c++/	-	0755	rm
curl/	-	0755	rm
drm/	-	0755	rm
et/	-	0755	rm
finclude/	-	0755	rm
fwctl/	-	0755	rm
gdb/	-	0755	rm
gnu/	-	0755	rm
gssapi/	-	0755	rm
gssrpc/	-	0755	rm
kadm5/	-	0755	rm
krb5/	-	0755	rm
libxml2/	-	0755	rm
linux/	-	0755	rm
lzma/	-	0755	rm
misc/	-	0755	rm
mtd/	-	0755	rm
net/	-	0755	rm
netash/	-	0755	rm
netatalk/	-	0755	rm
netax25/	-	0755	rm
neteconet/	-	0755	rm
netinet/	-	0755	rm
netipx/	-	0755	rm
netiucv/	-	0755	rm
netpacket/	-	0755	rm
netrom/	-	0755	rm
netrose/	-	0755	rm
nfs/	-	0755	rm
nghttp2/	-	0755	rm
offload/	-	0755	rm
openssl/	-	0755	rm
pcp/	-	0755	rm
protocols/	-	0755	rm
python3.9/	-	0755	rm
rdma/	-	0755	rm
rpc/	-	0755	rm
sasl/	-	0755	rm
scsi/	-	0755	rm
selinux/	-	0755	rm
sepol/	-	0755	rm
sound/	-	0755	rm
sys/	-	0755	rm
video/	-	0755	rm
xen/	-	0755	rm
a.out.h	4351	0644	edit dl rm
aio.h	7738	0644	edit dl rm
aliases.h	2028	0644	edit dl rm
alloca.h	1203	0644	edit dl rm
ar.h	1731	0644	edit dl rm
argp.h	25548	0644	edit dl rm
argz.h	6051	0644	edit dl rm
assert.h	4562	0644	edit dl rm
byteswap.h	1449	0644	edit dl rm
complex.h	8140	0644	edit dl rm
com_err.h	2118	0644	edit dl rm
cpio.h	2268	0644	edit dl rm
cpuidle.h	931	0644	edit dl rm
crypt.h	11160	0644	edit dl rm
ctype.h	10969	0644	edit dl rm
dirent.h	12617	0644	edit dl rm
dlfcn.h	8802	0644	edit dl rm
elf.h	182542	0644	edit dl rm
endian.h	2299	0644	edit dl rm
envz.h	2867	0644	edit dl rm
err.h	2341	0644	edit dl rm
errno.h	1679	0644	edit dl rm
error.h	2416	0644	edit dl rm
execinfo.h	1523	0644	edit dl rm
fcntl.h	11442	0644	edit dl rm
features-time64.h	1404	0644	edit dl rm
features.h	18116	0644	edit dl rm
fenv.h	5788	0644	edit dl rm
FlexLexer.h	6893	0644	edit dl rm
fmtmsg.h	3240	0644	edit dl rm
fnmatch.h	2296	0644	edit dl rm
fpu_control.h	3584	0644	edit dl rm
fstab.h	3111	0644	edit dl rm
fts.h	9579	0644	edit dl rm
ftw.h	6343	0644	edit dl rm
gconv.h	4211	0644	edit dl rm
gelf.h	11406	0644	edit dl rm
GeoIP.h	17835	0644	edit dl rm
GeoIPCity.h	2298	0644	edit dl rm
getopt.h	1469	0644	edit dl rm
glob.h	7299	0644	edit dl rm
gnu-versions.h	2343	0644	edit dl rm
gnumake.h	2912	0644	edit dl rm
grp.h	6687	0644	edit dl rm
gshadow.h	4529	0644	edit dl rm
gssapi.h	181	0644	edit dl rm
iconv.h	1858	0644	edit dl rm
idn2.h	13891	0644	edit dl rm
ieee754.h	4916	0644	edit dl rm
ifaddrs.h	2841	0644	edit dl rm
inttypes.h	8337	0644	edit dl rm
kdb.h	64333	0644	edit dl rm
keyutils.h	11796	0644	edit dl rm
krad.h	8933	0644	edit dl rm
krb5.h	402	0644	edit dl rm
langinfo.h	17849	0644	edit dl rm
lastlog.h	126	0644	edit dl rm
lauxlib.h	9314	0644	edit dl rm
lber.h	15480	0644	edit dl rm
lber_types.h	1468	0644	edit dl rm
ldap.h	74100	0644	edit dl rm
ldap_cdefs.h	9466	0644	edit dl rm
ldap_features.h	1585	0644	edit dl rm
ldap_schema.h	9450	0644	edit dl rm
ldap_utf8.h	3468	0644	edit dl rm
ldif.h	4793	0644	edit dl rm
libelf.h	20795	0644	edit dl rm
libgen.h	1386	0644	edit dl rm
libintl.h	4580	0644	edit dl rm
liblsapi-sha1.h	569	0644	edit dl rm
libpsl.h	5792	0644	edit dl rm
libssh2.h	60665	0644	edit dl rm
libssh2_publickey.h	4942	0644	edit dl rm
libssh2_sftp.h	17369	0644	edit dl rm
limits.h	5706	0644	edit dl rm
link.h	7801	0644	edit dl rm
locale.h	7675	0644	edit dl rm
lsapidef.h	4889	0644	edit dl rm
lscapi.h	25229	0644	edit dl rm
lscapi_config.h	599	0644	edit dl rm
lua.h	15818	0644	edit dl rm
lua.hpp	191	0644	edit dl rm
luaconf-x86_64.h	21518	0644	edit dl rm
luaconf.h	1655	0644	edit dl rm
lualib.h	1116	0644	edit dl rm
lzma.h	9866	0644	edit dl rm
malloc.h	5912	0644	edit dl rm
math.h	48773	0644	edit dl rm
mcheck.h	2435	0644	edit dl rm
memory.h	956	0644	edit dl rm
mntent.h	3359	0644	edit dl rm
monetary.h	1966	0644	edit dl rm
mqueue.h	4603	0644	edit dl rm
mysql	-	0	edit dl rm
netdb.h	28461	0644	edit dl rm
nlist.h	1601	0644	edit dl rm
nl_types.h	1753	0644	edit dl rm
nss.h	14408	0644	edit dl rm
obstack.h	21307	0644	edit dl rm
openldap.h	964	0644	edit dl rm
paths.h	2977	0644	edit dl rm
pcre2.h	47257	0644	edit dl rm
pcre2posix.h	6677	0644	edit dl rm
poll.h	22	0644	edit dl rm
powercap.h	1660	0644	edit dl rm
printf.h	6875	0644	edit dl rm
proc_service.h	3477	0644	edit dl rm
profile.h	12154	0644	edit dl rm
pthread.h	48524	0644	edit dl rm
pty.h	1570	0644	edit dl rm
pwd.h	6317	0644	edit dl rm
regex.h	25904	0644	edit dl rm
regexp.h	1448	0644	edit dl rm
resolv.h	12387	0644	edit dl rm
re_comp.h	963	0644	edit dl rm
sched.h	5038	0644	edit dl rm
search.h	5450	0644	edit dl rm
semaphore.h	3464	0644	edit dl rm
setjmp.h	3190	0644	edit dl rm
sgtty.h	1344	0644	edit dl rm
shadow.h	5472	0644	edit dl rm
signal.h	13040	0644	edit dl rm
slapi-plugin.h	38352	0644	edit dl rm
spawn.h	8297	0644	edit dl rm
stab.h	264	0644	edit dl rm
stdc-predef.h	2290	0644	edit dl rm
stdint.h	8474	0644	edit dl rm
stdio.h	31411	0644	edit dl rm
stdio_ext.h	2800	0644	edit dl rm
stdlib.h	36316	0644	edit dl rm
string.h	19459	0644	edit dl rm
strings.h	4753	0644	edit dl rm
syscall.h	25	0644	edit dl rm
sysexits.h	5232	0644	edit dl rm
syslog.h	24	0644	edit dl rm
tar.h	3786	0644	edit dl rm
termio.h	214	0644	edit dl rm
termios.h	3599	0644	edit dl rm
tgmath.h	40180	0644	edit dl rm
threads.h	7686	0644	edit dl rm
thread_db.h	16024	0644	edit dl rm
time.h	14848	0644	edit dl rm
ttyent.h	2494	0644	edit dl rm
uchar.h	2002	0644	edit dl rm
ucontext.h	2037	0644	edit dl rm
ulimit.h	1584	0644	edit dl rm
unistd.h	44489	0644	edit dl rm
utime.h	1905	0644	edit dl rm
utmp.h	3223	0644	edit dl rm
utmpx.h	4100	0644	edit dl rm
values.h	1956	0644	edit dl rm
verto-module.h	6640	0644	edit dl rm
verto.h	19437	0644	edit dl rm
wait.h	22	0644	edit dl rm
wchar.h	32142	0644	edit dl rm
wctype.h	5549	0644	edit dl rm
wordexp.h	2502	0644	edit dl rm
zconf.h	16262	0644	edit dl rm
zdict.h	26433	0644	edit dl rm
zlib.h	96261	0644	edit dl rm
zstd.h	171378	0644	edit dl rm
zstd_errors.h	4532	0644	edit dl rm

Edit: /usr/include/features.h (18116B)

/* Copyright (C) 1991-2021 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 Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 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
   Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <https://www.gnu.org/licenses/>.  */

#ifndef	_FEATURES_H
#define	_FEATURES_H	1

/* These are defined by the user (or the compiler)
   to specify the desired environment:

__STRICT_ANSI__	ISO Standard C.
   _ISOC99_SOURCE	Extensions to ISO C89 from ISO C99.
   _ISOC11_SOURCE	Extensions to ISO C99 from ISO C11.
   _ISOC2X_SOURCE	Extensions to ISO C99 from ISO C2X.
   __STDC_WANT_LIB_EXT2__
			Extensions to ISO C99 from TR 27431-2:2010.
   __STDC_WANT_IEC_60559_BFP_EXT__
			Extensions to ISO C11 from TS 18661-1:2014.
   __STDC_WANT_IEC_60559_FUNCS_EXT__
			Extensions to ISO C11 from TS 18661-4:2015.
   __STDC_WANT_IEC_60559_TYPES_EXT__
			Extensions to ISO C11 from TS 18661-3:2015.
   __STDC_WANT_IEC_60559_EXT__
			ISO C2X interfaces defined only in Annex F.

_POSIX_SOURCE	IEEE Std 1003.1.
   _POSIX_C_SOURCE	If ==1, like _POSIX_SOURCE; if >=2 add IEEE Std 1003.2;
			if >=199309L, add IEEE Std 1003.1b-1993;
			if >=199506L, add IEEE Std 1003.1c-1995;
			if >=200112L, all of IEEE 1003.1-2004
			if >=200809L, all of IEEE 1003.1-2008
   _XOPEN_SOURCE	Includes POSIX and XPG things.  Set to 500 if
			Single Unix conformance is wanted, to 600 for the
			sixth revision, to 700 for the seventh revision.
   _XOPEN_SOURCE_EXTENDED XPG things and X/Open Unix extensions.
   _LARGEFILE_SOURCE	Some more functions for correct standard I/O.
   _LARGEFILE64_SOURCE	Additional functionality from LFS for large files.
   _FILE_OFFSET_BITS=N	Select default filesystem interface.
   _ATFILE_SOURCE	Additional *at interfaces.
   _DYNAMIC_STACK_SIZE_SOURCE Select correct (but non compile-time constant)
			MINSIGSTKSZ, SIGSTKSZ and PTHREAD_STACK_MIN.
   _GNU_SOURCE		All of the above, plus GNU extensions.
   _DEFAULT_SOURCE	The default set of features (taking precedence over
			__STRICT_ANSI__).

_FORTIFY_SOURCE	Add security hardening to many library functions.
			Set to 1 or 2; 2 performs stricter checks than 1.

_REENTRANT, _THREAD_SAFE
			Obsolete; equivalent to _POSIX_C_SOURCE=199506L.

The `-ansi' switch to the GNU C compiler, and standards conformance
   options such as `-std=c99', define __STRICT_ANSI__.  If none of
   these are defined, or if _DEFAULT_SOURCE is defined, the default is
   to have _POSIX_SOURCE set to one and _POSIX_C_SOURCE set to
   200809L, as well as enabling miscellaneous functions from BSD and
   SVID.  If more than one of these are defined, they accumulate.  For
   example __STRICT_ANSI__, _POSIX_SOURCE and _POSIX_C_SOURCE together
   give you ISO C, 1003.1, and 1003.2, but nothing else.

These are defined by this file and are used by the
   header files to decide what to declare or define:

__GLIBC_USE (F)	Define things from feature set F.  This is defined
			to 1 or 0; the subsequent macros are either defined
			or undefined, and those tests should be moved to
			__GLIBC_USE.
   __USE_ISOC11		Define ISO C11 things.
   __USE_ISOC99		Define ISO C99 things.
   __USE_ISOC95		Define ISO C90 AMD1 (C95) things.
   __USE_ISOCXX11	Define ISO C++11 things.
   __USE_POSIX		Define IEEE Std 1003.1 things.
   __USE_POSIX2		Define IEEE Std 1003.2 things.
   __USE_POSIX199309	Define IEEE Std 1003.1, and .1b things.
   __USE_POSIX199506	Define IEEE Std 1003.1, .1b, .1c and .1i things.
   __USE_XOPEN		Define XPG things.
   __USE_XOPEN_EXTENDED	Define X/Open Unix things.
   __USE_UNIX98		Define Single Unix V2 things.
   __USE_XOPEN2K        Define XPG6 things.
   __USE_XOPEN2KXSI     Define XPG6 XSI things.
   __USE_XOPEN2K8       Define XPG7 things.
   __USE_XOPEN2K8XSI    Define XPG7 XSI things.
   __USE_LARGEFILE	Define correct standard I/O things.
   __USE_LARGEFILE64	Define LFS things with separate names.
   __USE_FILE_OFFSET64	Define 64bit interface as default.
   __USE_MISC		Define things from 4.3BSD or System V Unix.
   __USE_ATFILE		Define *at interfaces and AT_* constants for them.
   __USE_DYNAMIC_STACK_SIZE Define correct (but non compile-time constant)
			MINSIGSTKSZ, SIGSTKSZ and PTHREAD_STACK_MIN.
   __USE_GNU		Define GNU extensions.
   __USE_FORTIFY_LEVEL	Additional security measures used, according to level.

The macros `__GNU_LIBRARY__', `__GLIBC__', and `__GLIBC_MINOR__' are
   defined by this file unconditionally.  `__GNU_LIBRARY__' is provided
   only for compatibility.  All new code should use the other symbols
   to test for features.

All macros listed above as possibly being defined by this file are
   explicitly undefined if they are not explicitly defined.
   Feature-test macros that are not defined by the user or compiler
   but are implied by the other feature-test macros defined (or by the
   lack of any definitions) are defined by the file.

ISO C feature test macros depend on the definition of the macro
   when an affected header is included, not when the first system
   header is included, and so they are handled in
   <bits/libc-header-start.h>, which does not have a multiple include
   guard.  Feature test macros that can be handled from the first
   system header included are handled here.  */

/* Undefine everything, so we get a clean slate.  */
#undef	__USE_ISOC11
#undef	__USE_ISOC99
#undef	__USE_ISOC95
#undef	__USE_ISOCXX11
#undef	__USE_POSIX
#undef	__USE_POSIX2
#undef	__USE_POSIX199309
#undef	__USE_POSIX199506
#undef	__USE_XOPEN
#undef	__USE_XOPEN_EXTENDED
#undef	__USE_UNIX98
#undef	__USE_XOPEN2K
#undef	__USE_XOPEN2KXSI
#undef	__USE_XOPEN2K8
#undef	__USE_XOPEN2K8XSI
#undef	__USE_LARGEFILE
#undef	__USE_LARGEFILE64
#undef	__USE_FILE_OFFSET64
#undef	__USE_MISC
#undef	__USE_ATFILE
#undef	__USE_DYNAMIC_STACK_SIZE
#undef	__USE_GNU
#undef	__USE_FORTIFY_LEVEL
#undef	__KERNEL_STRICT_NAMES
#undef	__GLIBC_USE_ISOC2X
#undef	__GLIBC_USE_DEPRECATED_GETS
#undef	__GLIBC_USE_DEPRECATED_SCANF

/* Suppress kernel-name space pollution unless user expressedly asks
   for it.  */
#ifndef _LOOSE_KERNEL_NAMES
# define __KERNEL_STRICT_NAMES
#endif

/* Convenience macro to test the version of gcc.
   Use like this:
   #if __GNUC_PREREQ (2,8)
   ... code requiring gcc 2.8 or later ...
   #endif
   Note: only works for GCC 2.0 and later, because __GNUC_MINOR__ was
   added in 2.0.  */
#if defined __GNUC__ && defined __GNUC_MINOR__
# define __GNUC_PREREQ(maj, min) \
	((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
#else
# define __GNUC_PREREQ(maj, min) 0
#endif

/* Similarly for clang.  Features added to GCC after version 4.2 may
   or may not also be available in clang, and clang's definitions of
   __GNUC(_MINOR)__ are fixed at 4 and 2 respectively.  Not all such
   features can be queried via __has_extension/__has_feature.  */
#if defined __clang_major__ && defined __clang_minor__
# define __glibc_clang_prereq(maj, min) \
  ((__clang_major__ << 16) + __clang_minor__ >= ((maj) << 16) + (min))
#else
# define __glibc_clang_prereq(maj, min) 0
#endif

/* Whether to use feature set F.  */
#define __GLIBC_USE(F)	__GLIBC_USE_ ## F

/* _BSD_SOURCE and _SVID_SOURCE are deprecated aliases for
   _DEFAULT_SOURCE.  If _DEFAULT_SOURCE is present we do not
   issue a warning; the expectation is that the source is being
   transitioned to use the new macro.  */
#if (defined _BSD_SOURCE || defined _SVID_SOURCE) \
    && !defined _DEFAULT_SOURCE
# warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE"
# undef  _DEFAULT_SOURCE
# define _DEFAULT_SOURCE	1
#endif

/* If _GNU_SOURCE was defined by the user, turn on all the other features.  */
#ifdef _GNU_SOURCE
# undef  _ISOC95_SOURCE
# define _ISOC95_SOURCE	1
# undef  _ISOC99_SOURCE
# define _ISOC99_SOURCE	1
# undef  _ISOC11_SOURCE
# define _ISOC11_SOURCE	1
# undef  _ISOC2X_SOURCE
# define _ISOC2X_SOURCE	1
# undef  _POSIX_SOURCE
# define _POSIX_SOURCE	1
# undef  _POSIX_C_SOURCE
# define _POSIX_C_SOURCE	200809L
# undef  _XOPEN_SOURCE
# define _XOPEN_SOURCE	700
# undef  _XOPEN_SOURCE_EXTENDED
# define _XOPEN_SOURCE_EXTENDED	1
# undef	 _LARGEFILE64_SOURCE
# define _LARGEFILE64_SOURCE	1
# undef  _DEFAULT_SOURCE
# define _DEFAULT_SOURCE	1
# undef  _ATFILE_SOURCE
# define _ATFILE_SOURCE	1
# undef  _DYNAMIC_STACK_SIZE_SOURCE
# define _DYNAMIC_STACK_SIZE_SOURCE 1
#endif

/* If nothing (other than _GNU_SOURCE and _DEFAULT_SOURCE) is defined,
   define _DEFAULT_SOURCE.  */
#if (defined _DEFAULT_SOURCE					\
     || (!defined __STRICT_ANSI__				\
	 && !defined _ISOC99_SOURCE && !defined _ISOC11_SOURCE	\
	 && !defined _ISOC2X_SOURCE				\
	 && !defined _POSIX_SOURCE && !defined _POSIX_C_SOURCE	\
	 && !defined _XOPEN_SOURCE))
# undef  _DEFAULT_SOURCE
# define _DEFAULT_SOURCE	1
#endif

/* This is to enable the ISO C2X extension.  */
#if (defined _ISOC2X_SOURCE \
     || (defined __STDC_VERSION__ && __STDC_VERSION__ > 201710L))
# define __GLIBC_USE_ISOC2X	1
#else
# define __GLIBC_USE_ISOC2X	0
#endif

/* This is to enable the ISO C11 extension.  */
#if (defined _ISOC11_SOURCE || defined _ISOC2X_SOURCE \
     || (defined __STDC_VERSION__ && __STDC_VERSION__ >= 201112L))
# define __USE_ISOC11	1
#endif

/* This is to enable the ISO C99 extension.  */
#if (defined _ISOC99_SOURCE || defined _ISOC11_SOURCE			\
     || defined _ISOC2X_SOURCE						\
     || (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L))
# define __USE_ISOC99	1
#endif

/* This is to enable the ISO C90 Amendment 1:1995 extension.  */
#if (defined _ISOC99_SOURCE || defined _ISOC11_SOURCE			\
     || defined _ISOC2X_SOURCE						\
     || (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199409L))
# define __USE_ISOC95	1
#endif

#ifdef __cplusplus
/* This is to enable compatibility for ISO C++17.  */
# if __cplusplus >= 201703L
#  define __USE_ISOC11	1
# endif
/* This is to enable compatibility for ISO C++11.
   Check the temporary macro for now, too.  */
# if __cplusplus >= 201103L || defined __GXX_EXPERIMENTAL_CXX0X__
#  define __USE_ISOCXX11	1
#  define __USE_ISOC99	1
# endif
#endif

/* If none of the ANSI/POSIX macros are defined, or if _DEFAULT_SOURCE
   is defined, use POSIX.1-2008 (or another version depending on
   _XOPEN_SOURCE).  */
#ifdef _DEFAULT_SOURCE
# if !defined _POSIX_SOURCE && !defined _POSIX_C_SOURCE
#  define __USE_POSIX_IMPLICITLY	1
# endif
# undef  _POSIX_SOURCE
# define _POSIX_SOURCE	1
# undef  _POSIX_C_SOURCE
# define _POSIX_C_SOURCE	200809L
#endif

#if ((!defined __STRICT_ANSI__					\
      || (defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) >= 500))	\
     && !defined _POSIX_SOURCE && !defined _POSIX_C_SOURCE)
# define _POSIX_SOURCE	1
# if defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) < 500
#  define _POSIX_C_SOURCE	2
# elif defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) < 600
#  define _POSIX_C_SOURCE	199506L
# elif defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) < 700
#  define _POSIX_C_SOURCE	200112L
# else
#  define _POSIX_C_SOURCE	200809L
# endif
# define __USE_POSIX_IMPLICITLY	1
#endif

/* Some C libraries once required _REENTRANT and/or _THREAD_SAFE to be
   defined in all multithreaded code.  GNU libc has not required this
   for many years.  We now treat them as compatibility synonyms for
   _POSIX_C_SOURCE=199506L, which is the earliest level of POSIX with
   comprehensive support for multithreaded code.  Using them never
   lowers the selected level of POSIX conformance, only raises it.  */
#if ((!defined _POSIX_C_SOURCE || (_POSIX_C_SOURCE - 0) < 199506L) \
     && (defined _REENTRANT || defined _THREAD_SAFE))
# define _POSIX_SOURCE   1
# undef  _POSIX_C_SOURCE
# define _POSIX_C_SOURCE 199506L
#endif

#if (defined _POSIX_SOURCE					\
     || (defined _POSIX_C_SOURCE && _POSIX_C_SOURCE >= 1)	\
     || defined _XOPEN_SOURCE)
# define __USE_POSIX	1
#endif

#if defined _POSIX_C_SOURCE && _POSIX_C_SOURCE >= 2 || defined _XOPEN_SOURCE
# define __USE_POSIX2	1
#endif

#if defined _POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 199309L
# define __USE_POSIX199309	1
#endif

#if defined _POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 199506L
# define __USE_POSIX199506	1
#endif

#if defined _POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 200112L
# define __USE_XOPEN2K		1
# undef __USE_ISOC95
# define __USE_ISOC95		1
# undef __USE_ISOC99
# define __USE_ISOC99		1
#endif

#if defined _POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 200809L
# define __USE_XOPEN2K8		1
# undef  _ATFILE_SOURCE
# define _ATFILE_SOURCE	1
#endif

#ifdef	_XOPEN_SOURCE
# define __USE_XOPEN	1
# if (_XOPEN_SOURCE - 0) >= 500
#  define __USE_XOPEN_EXTENDED	1
#  define __USE_UNIX98	1
#  undef _LARGEFILE_SOURCE
#  define _LARGEFILE_SOURCE	1
#  if (_XOPEN_SOURCE - 0) >= 600
#   if (_XOPEN_SOURCE - 0) >= 700
#    define __USE_XOPEN2K8	1
#    define __USE_XOPEN2K8XSI	1
#   endif
#   define __USE_XOPEN2K	1
#   define __USE_XOPEN2KXSI	1
#   undef __USE_ISOC95
#   define __USE_ISOC95		1
#   undef __USE_ISOC99
#   define __USE_ISOC99		1
#  endif
# else
#  ifdef _XOPEN_SOURCE_EXTENDED
#   define __USE_XOPEN_EXTENDED	1
#  endif
# endif
#endif

#ifdef _LARGEFILE_SOURCE
# define __USE_LARGEFILE	1
#endif

#ifdef _LARGEFILE64_SOURCE
# define __USE_LARGEFILE64	1
#endif

#if defined _FILE_OFFSET_BITS && _FILE_OFFSET_BITS == 64
# define __USE_FILE_OFFSET64	1
#endif

#include <features-time64.h>

#if defined _DEFAULT_SOURCE
# define __USE_MISC	1
#endif

#ifdef	_ATFILE_SOURCE
# define __USE_ATFILE	1
#endif

#ifdef	_DYNAMIC_STACK_SIZE_SOURCE
# define __USE_DYNAMIC_STACK_SIZE	1
#endif

#ifdef	_GNU_SOURCE
# define __USE_GNU	1
#endif

#if defined _FORTIFY_SOURCE && _FORTIFY_SOURCE > 0
# if !defined __OPTIMIZE__ || __OPTIMIZE__ <= 0
#  warning _FORTIFY_SOURCE requires compiling with optimization (-O)
# elif !__GNUC_PREREQ (4, 1)
#  warning _FORTIFY_SOURCE requires GCC 4.1 or later
# elif _FORTIFY_SOURCE > 2 && (__glibc_clang_prereq (9, 0)		      \
			       || __GNUC_PREREQ (12, 0))

#  if _FORTIFY_SOURCE > 3
#   warning _FORTIFY_SOURCE > 3 is treated like 3 on this platform
#  endif
#  define __USE_FORTIFY_LEVEL 3
# elif _FORTIFY_SOURCE > 1
#  if _FORTIFY_SOURCE > 2
#   warning _FORTIFY_SOURCE > 2 is treated like 2 on this platform
#  endif
#  define __USE_FORTIFY_LEVEL 2
# else
#  define __USE_FORTIFY_LEVEL 1
# endif
#endif
#ifndef __USE_FORTIFY_LEVEL
# define __USE_FORTIFY_LEVEL 0
#endif

/* The function 'gets' existed in C89, but is impossible to use
   safely.  It has been removed from ISO C11 and ISO C++14.  Note: for
   compatibility with various implementations of <cstdio>, this test
   must consider only the value of __cplusplus when compiling C++.  */
#if defined __cplusplus ? __cplusplus >= 201402L : defined __USE_ISOC11
# define __GLIBC_USE_DEPRECATED_GETS 0
#else
# define __GLIBC_USE_DEPRECATED_GETS 1
#endif

/* GNU formerly extended the scanf functions with modified format
   specifiers %as, %aS, and %a[...] that allocate a buffer for the
   input using malloc.  This extension conflicts with ISO C99, which
   defines %a as a standalone format specifier that reads a floating-
   point number; moreover, POSIX.1-2008 provides the same feature
   using the modifier letter 'm' instead (%ms, %mS, %m[...]).

We now follow C99 unless GNU extensions are active and the compiler
   is specifically in C89 or C++98 mode (strict or not).  For
   instance, with GCC, -std=gnu11 will have C99-compliant scanf with
   or without -D_GNU_SOURCE, but -std=c89 -D_GNU_SOURCE will have the
   old extension.  */
#if (defined __USE_GNU							\
     && (defined __cplusplus						\
	 ? (__cplusplus < 201103L && !defined __GXX_EXPERIMENTAL_CXX0X__) \
	 : (!defined __STDC_VERSION__ || __STDC_VERSION__ < 199901L)))
# define __GLIBC_USE_DEPRECATED_SCANF 1
#else
# define __GLIBC_USE_DEPRECATED_SCANF 0
#endif

/* Get definitions of __STDC_* predefined macros, if the compiler has
   not preincluded this header automatically.  */
#include <stdc-predef.h>

/* This macro indicates that the installed library is the GNU C Library.
   For historic reasons the value now is 6 and this will stay from now
   on.  The use of this variable is deprecated.  Use __GLIBC__ and
   __GLIBC_MINOR__ now (see below) when you want to test for a specific
   GNU C library version and use the values in <gnu/lib-names.h> to get
   the sonames of the shared libraries.  */
#undef  __GNU_LIBRARY__
#define __GNU_LIBRARY__ 6

/* Major and minor version number of the GNU C library package.  Use
   these macros to test for features in specific releases.  */
#define	__GLIBC__	2
#define	__GLIBC_MINOR__	34

#define __GLIBC_PREREQ(maj, min) \
	((__GLIBC__ << 16) + __GLIBC_MINOR__ >= ((maj) << 16) + (min))

/* This is here only because every header file already includes this one.  */
#ifndef __ASSEMBLER__
# ifndef _SYS_CDEFS_H
#  include <sys/cdefs.h>
# endif

/* If we don't have __REDIRECT, prototypes will be missing if
   __USE_FILE_OFFSET64 but not __USE_LARGEFILE[64]. */
# if defined __USE_FILE_OFFSET64 && !defined __REDIRECT
#  define __USE_LARGEFILE	1
#  define __USE_LARGEFILE64	1
# endif

#endif	/* !ASSEMBLER */

/* Decide whether we can define 'extern inline' functions in headers.  */
#if __GNUC_PREREQ (2, 7) && defined __OPTIMIZE__ \
    && !defined __OPTIMIZE_SIZE__ && !defined __NO_INLINE__ \
    && defined __extern_inline
# define __USE_EXTERN_INLINES	1
#endif

/* This is here only because every header file already includes this one.
   Get the definitions of all the appropriate `__stub_FUNCTION' symbols.
   <gnu/stubs.h> contains `#define __stub_FUNCTION' when FUNCTION is a stub
   that will always return failure (and set errno to ENOSYS).  */
#include <gnu/stubs.h>

#endif	/* features.h  */

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