Rich Felker a7239cbc1b switch __STDC_UTF_{16,32}__ macro definitions from #undef to #ifndef ... originally, compilers did not provide these macros and we had to provide them ourselves. this meant we were redefining them, which was technically invalid unless the token sequence of the original definition matched exactly. the original patch proposed by Jules Maselbas to fix this made the definitions conditional on them not already being defined; however I suggested using #undef to avoid any possibly-wrong definitions already in place and ensure that the definitions are 1. the version adopted as commit 8b70486807 made this change. unfortunately, gcc is loud about not liking #undef of any __STDC_* macro name, and while warnings are suppressed in the system include path, there is apparently no way to suppress this warning if the system include dir has also been provided via -I. while normally we don't go out of our way to satisfy warnings over style in the public headers, in this case, it seems to be a matter of disagreement over contract of which part of "the implementation" is entitled to define or undefine macros belonging to the implementation, and it's quite reasonable to conclude that the compiler may reject attempts to undefine them. this commit reverts to the originally-submitted version of the patch making the definitions conditional.		2024-02-26 14:14:08 -05:00
..
arpa	arpa/nameser.h: update RR types list	2022-09-22 18:44:44 -04:00
net	net/if_arp.h: add ARPHRD_RAWIP from linux v4.14	2018-02-22 18:47:49 -05:00
netinet	netinet/in.h: add INADDR_DUMMY from linux v5.13	2022-03-08 17:21:26 -05:00
netpacket	add PACKET_IGNORE_OUTGOING sockopt from linux v4.20	2019-03-13 12:32:19 -04:00
scsi
sys	add statx interface using syscall, fallback to fstatat	2024-02-24 12:27:09 -05:00
aio.h	remove LFS64 programming interfaces (macro-only) from _GNU_SOURCE	2022-10-19 14:01:31 -04:00
alloca.h	unconditonally define alloca as __builtin_alloca	2020-01-01 15:07:11 -05:00
alltypes.h.in	fix regression with applications that expect struct winsize in ioctl.h	2020-08-30 16:47:40 -04:00
ar.h
assert.h	restore _Noreturn to __assert_fail	2016-08-30 16:39:54 -04:00
byteswap.h
complex.h	fix mismatched parens in CMPLX def for annex-g-conforming compilers	2015-11-02 21:44:57 -05:00
cpio.h
crypt.h
ctype.h	suppress isascii() macro for C++	2021-02-25 16:35:54 -05:00
dirent.h	remove LFS64 programming interfaces (macro-only) from _GNU_SOURCE	2022-10-19 14:01:31 -04:00
dlfcn.h	add time64 redirect for, and redirecting implementation of, dlsym	2019-11-02 18:30:56 -04:00
elf.h	add loongarch64 port	2024-02-16 09:33:10 -05:00
endian.h	make endian.h expose unprefixed macros, functions in standard profile	2019-10-17 16:26:22 -04:00
err.h
errno.h	restore attribute((const)) to pthread_self and errno location decls	2018-10-16 14:10:27 -04:00
fcntl.h	move fallocate64 declaration under _LARGEFILE64_SOURCE feature test	2023-05-02 11:45:28 -04:00
features.h	add time64 symbol name redirects to public headers, under arch control	2019-10-28 19:26:52 -04:00
fenv.h
float.h
fmtmsg.h
fnmatch.h
ftw.h	remove LFS64 programming interfaces (macro-only) from _GNU_SOURCE	2022-10-19 14:01:31 -04:00
getopt.h	make brace placement in public header struct definitions consistent	2016-07-03 15:02:25 -04:00
glob.h	remove LFS64 programming interfaces (macro-only) from _GNU_SOURCE	2022-10-19 14:01:31 -04:00
grp.h	fix various header namespace issues under feature-test-macro control	2016-10-20 17:20:01 -04:00
iconv.h
ifaddrs.h	remove parameter names from public headers	2016-10-20 17:04:37 -04:00
inttypes.h
iso646.h
langinfo.h	add _NL_LOCALE_NAME extension to nl_langinfo	2017-07-31 23:08:27 -04:00
lastlog.h
libgen.h
libintl.h	add format argument attributes to gettext function prototypes	2015-09-15 20:30:36 +00:00
limits.h	move struct dirent to bits header, allow NAME_MAX to vary	2020-01-25 23:08:55 -05:00
link.h	generalize ELF hash table types not to assume 32-bit entries	2016-11-11 12:46:06 -05:00
locale.h	define NULL as nullptr when used in C++11 or later	2021-11-29 17:45:21 -05:00
malloc.h
math.h	define FP_FAST_FMA* when fma* can be inlined	2019-04-17 13:02:47 -04:00
memory.h
mntent.h	make brace placement in public header struct definitions consistent	2016-07-03 15:02:25 -04:00
monetary.h
mqueue.h	add time64 symbol name redirects to public headers, under arch control	2019-10-28 19:26:52 -04:00
netdb.h	getaddrinfo: add EAI_NODATA error code to distinguish NODATA vs NxDomain	2022-09-20 18:09:42 -04:00
nl_types.h
paths.h
poll.h	fix erroneous feature test macro check for ppoll	2024-02-08 21:57:38 -05:00
pthread.h	add pthread_getname_np function	2021-04-20 15:34:30 -04:00
pty.h
pwd.h	fix various header namespace issues under feature-test-macro control	2016-10-20 17:20:01 -04:00
regex.h
resolv.h	don't claim support for resolv.h APIs that aren't supported	2016-11-07 11:55:53 -05:00
sched.h	fix incorrect unit for CPU_SETSIZE macro	2023-02-23 10:10:44 -05:00
search.h
semaphore.h	add time64 symbol name redirects to public headers, under arch control	2019-10-28 19:26:52 -04:00
setjmp.h	guard against compilers failing to handle setjmp specially by default	2021-02-22 15:52:21 -05:00
shadow.h
signal.h	signal.h: add new sa_flags from linux v5.11	2022-03-08 17:19:49 -05:00
spawn.h	add posix_spawn [f]chdir file actions	2019-08-30 16:21:36 -04:00
stdalign.h
stdarg.h	remove legacy i386 fallback stdarg implementation and framework	2016-12-15 12:18:24 -05:00
stdbool.h
stdc-predef.h	switch __STDC_UTF_{16,32}__ macro definitions from #undef to #ifndef	2024-02-26 14:14:08 -05:00
stddef.h	define NULL as nullptr when used in C++11 or later	2021-11-29 17:45:21 -05:00
stdint.h
stdio_ext.h
stdio.h	remove LFS64 programming interfaces (macro-only) from _GNU_SOURCE	2022-10-19 14:01:31 -04:00
stdlib.h	fix integer overflow in WIFSTOPPED macro	2023-02-08 16:42:28 -05:00
stdnoreturn.h
string.h	remove non-prototype declaration of basename from string.h	2023-11-06 08:26:19 -05:00
strings.h	fix strings.h feature test macro usage due to missing features.h	2022-08-01 13:57:11 -04:00
stropts.h
syscall.h
sysexits.h
syslog.h
tar.h	expose TSVTX unconditionally in tar.h	2019-03-13 10:42:57 -04:00
termios.h	fix regression with applications that expect struct winsize in ioctl.h	2020-08-30 16:47:40 -04:00
tgmath.h
threads.h	add time64 symbol name redirects to public headers, under arch control	2019-10-28 19:26:52 -04:00
time.h	define NULL as nullptr when used in C++11 or later	2021-11-29 17:45:21 -05:00
uchar.h	uchar.h: define char16_t and char32_t for old c++	2018-07-17 22:24:03 -04:00
ucontext.h	fix signature of function accepted by makecontext	2019-04-05 17:29:00 -04:00
ulimit.h
unistd.h	remove LFS64 programming interfaces (macro-only) from _GNU_SOURCE	2022-10-19 14:01:31 -04:00
utime.h	add time64 symbol name redirects to public headers, under arch control	2019-10-28 19:26:52 -04:00
utmp.h	add declarations for utmpname/utmpxname to appropriate headers	2016-02-12 09:58:50 -05:00
utmpx.h	adjust utmpx struct layout for time64, 32-/64-bit arch compat	2019-12-22 12:37:16 -05:00
values.h
wait.h
wchar.h	define NULL as nullptr when used in C++11 or later	2021-11-29 17:45:21 -05:00
wctype.h
wordexp.h	make brace placement in public header typedef'd structs consistent	2016-07-03 16:19:28 -04:00