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Joseph Myers 42f527c89d Mark IDN tests unsupported with libidn2 before 2.0.5.
When using a system (e.g. Ubuntu 18.04) with libidn2 2.0.4 or earlier,
test results include:

FAIL: resolv/tst-resolv-ai_idn
FAIL: resolv/tst-resolv-ai_idn-latin1

It was previously stated
<https://sourceware.org/ml/libc-alpha/2018-05/msg00771.html> that "It
should fail to indicate you have bugs in your system libidn.".
However, the glibc testsuite should be indicating whether there are
bugs in glibc, not whether there are bugs in other system pieces - so
unless you consider it a glibc bug that it fails to work around the
libidn issues, these FAILs are not helpful.  And as a general
principle, it's best for the expected glibc test results to be clean,
with Bugzilla used to track known bugs in glibc itself, rather than
people needing to know about the expected FAILs to tell if there are
problems with their glibc build.  So, while there is an argument that
install.texi (not just the old NEWS entries for 2.28) should explain
the use of libidn2 and that 2.0.5 or later is recommended, test FAILs
are not the right way to indicate the presence of an old libidn2
version.

This patch accordingly makes those tests return UNSUPPORTED for older
libidn2 versions, just as they do when libidn2 isn't present at all.
As implied by that past discussion, it's possible this could result in
UNSUPPORTED for systems with older versions but whatever required
fixes backported so the tests previously passed, if there are any such
systems.

Tested for x86_64 on Ubuntu 18.04, including verifying that putting an
earlier version in place of 2.0.5 results in the tests FAILing whereas
using 2.0.5 as in the patch results in UNSUPPORTED.  Florian reports
that the tests still run on Fedora 30, with libidn 2.2.0.

	* resolv/tst-resolv-ai_idn-latin1.c (do_test): Mark test
	unsupported with libidn2 before 2.0.5.
	* resolv/tst-resolv-ai_idn.c (do_test): Likewise.
2019-08-22 12:56:49 +00:00
argp Fix gcc 9 build errors for make xcheck. [BZ #24556] 2019-06-19 12:32:04 +02:00
assert Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
benchtests benchtests: Add logb{f} benchmark 2019-07-08 17:22:22 -03:00
bits login: Add nonstring attributes to struct utmp, struct utmpx [BZ #24899] 2019-08-15 16:09:43 +02:00
catgets Add some spaces before '('. 2019-02-27 13:55:45 +00:00
ChangeLog.old Add more bug numbers to historic ChangeLog entries 2019-04-11 09:32:08 +02:00
conform Remove obsolete, never-implemented XSI STREAMS declarations 2019-03-14 15:44:15 +01:00
crypt Break some lines before not after operators. 2019-02-22 01:32:36 +00:00
csu Update copyright dates not handled by scripts/update-copyrights. 2019-01-01 00:15:13 +00:00
ctype Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
debug Do not print backtraces on fatal glibc errors 2019-08-19 15:41:29 +02:00
dirent Linux: Move getdents64 to <dirent.h> 2019-07-29 21:02:46 +02:00
dlfcn dlfcn: Avoid one-element flexible array in Dl_serinfo [BZ #24166] 2019-06-19 10:13:50 +02:00
elf elf: Self-dlopen failure with explict loader invocation [BZ #24900] 2019-08-15 18:53:32 +02:00
gmon Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
gnulib Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
grp nss: Turn __nss_database_lookup into a compatibility symbol 2019-05-15 15:07:49 +02:00
gshadow Break more lines before not after operators. 2019-02-25 13:19:19 +00:00
hesiod Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
htl Break more lines before not after operators. 2019-02-25 13:19:19 +00:00
hurd hurd: Fix comment style 2019-03-16 19:44:04 +01:00
iconv iconv: Revert steps array reference counting changes 2019-07-31 11:43:59 +02:00
iconvdata Add some spaces before '('. 2019-02-27 13:55:45 +00:00
include Do not print backtraces on fatal glibc errors 2019-08-19 15:41:29 +02:00
inet Add INADDR_ALLSNOOPERS_GROUP from Linux 5.1 to netinet/in.h. 2019-06-03 11:16:02 +00:00
intl intl: Do not return NULL on asprintf failure in gettext [BZ #24018] 2019-01-02 16:26:58 +01:00
io Add AT_RECURSIVE from Linux 5.2 to fcntl.h. 2019-08-06 21:17:59 +00:00
libio iconv: Revert steps array reference counting changes 2019-07-31 11:43:59 +02:00
locale locale/C-translit.h.in: Cyrillic -> ASCII transliteration [BZ #2872] 2019-07-20 21:49:38 +02:00
localedata Afar locales: Months and days updated from CLDR (bug 21897). 2019-07-17 11:58:21 +02:00
login login: Use struct flock64 in utmp [BZ #24880] 2019-08-15 16:09:20 +02:00
mach Break some lines before not after operators. 2019-02-22 01:32:36 +00:00
malloc malloc: Various cleanups for malloc/tst-mxfast 2019-08-15 11:37:18 +02:00
manual Document strftime %Ob and %OB as C2X features. 2019-08-22 12:38:40 +00:00
math Add tgmath.h macros for narrowing functions. 2019-08-21 12:06:44 +00:00
mathvec Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
misc Don't use the argument to time. 2019-08-21 08:26:36 -04:00
nis nss_nis, nss_nisplus: Remove RES_USE_INET6 handling 2019-05-16 17:23:23 +02:00
nptl nptl: Move pthread_attr_getdetachstate implementation into libc 2019-08-16 22:44:44 +02:00
nptl_db Move remaining nptl_db headers to sysdeps/nptl 2019-02-16 08:25:16 +01:00
nscd nscd: Improve nscd.conf comments. 2019-08-19 09:57:58 -04:00
nss nss: Make nsswitch.conf more distribution friendly. 2019-08-19 09:56:59 -04:00
po Update translations. 2019-07-31 23:38:15 -04:00
posix Remove dead regex code 2019-08-21 11:02:19 -07:00
pwd Break more lines before not after operators. 2019-02-25 13:19:19 +00:00
resolv Mark IDN tests unsupported with libidn2 before 2.0.5. 2019-08-22 12:56:49 +00:00
resource Break some lines before not after operators. 2019-02-22 01:32:36 +00:00
rt Remove __get_clockfreq 2019-03-22 16:52:29 -03:00
scripts build-many-glibcs.py: Use Linux 5.2 by default 2019-07-24 10:59:45 +02:00
setjmp Break some lines before not after operators. 2019-02-22 01:32:36 +00:00
shadow Break more lines before not after operators. 2019-02-25 13:19:19 +00:00
signal Linux: Add the tgkill function 2019-05-14 22:55:51 +02:00
socket Fix a few typos in comments 2019-01-12 13:44:51 +00:00
soft-fp soft-fp: Properly check _FP_W_TYPE_SIZE [BZ #24066] 2019-01-07 09:04:39 -08:00
stdio-common Prepare vfprintf to use __printf_fp/__printf_fphex with float128 arg 2019-06-27 17:51:59 -03:00
stdlib Declare most TS 18661-1 interfaces for C2X. 2019-08-13 11:28:51 +00:00
string Don't use the argument to time. 2019-08-21 08:26:36 -04:00
sunrpc Remove qualifier from function return type in tst-svc_register.c. 2019-02-15 13:45:19 +00:00
support support: Include <support/descriptors.h> in support_descriptors.c 2019-08-14 16:24:46 +02:00
sysdeps Don't use the argument to time. 2019-08-21 08:26:36 -04:00
sysvipc Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
termios Break some lines before not after operators. 2019-02-22 01:32:36 +00:00
time Don't use the argument to time. 2019-08-21 08:26:36 -04:00
timezone Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
wcsmbs iconv: Revert steps array reference counting changes 2019-07-31 11:43:59 +02:00
wctype Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
.gitattributes
.gitignore
abi-tags
aclocal.m4
ChangeLog Mark IDN tests unsupported with libidn2 before 2.0.5. 2019-08-22 12:56:49 +00:00
config.h.in S390: Add configure check to detect support for arch13. 2019-03-22 11:14:08 +01:00
config.make.in Make --bindir effective 2019-05-14 11:04:33 -03:00
configure elf/Makefile: Run IFUNC tests if binutils supports IFUNC 2019-02-27 13:21:55 -08:00
configure.ac elf/Makefile: Run IFUNC tests if binutils supports IFUNC 2019-02-27 13:21:55 -08:00
COPYING
COPYING.LIB
extra-lib.mk
gen-locales.mk
INSTALL Update install and NEWS for 2.30 release. 2019-08-01 00:22:46 -04:00
libc-abis
libof-iterator.mk
LICENSES
MAINTAINERS
Makeconfig test-container: Install with $(sorted-subdirs) [BZ #24794] 2019-07-29 10:31:06 -03:00
Makefile test-container: Install with $(sorted-subdirs) [BZ #24794] 2019-07-29 10:31:06 -03:00
Makefile.in
Makerules Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
NEWS Add tgmath.h macros for narrowing functions. 2019-08-21 12:06:44 +00:00
o-iterator.mk
README
Rules Use a proper C tokenizer to implement the obsolete typedefs test. 2019-03-13 09:39:43 -04:00
shlib-versions
test-skeleton.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
version.h Open master for 2.31 development. 2019-08-01 00:41:53 -04:00

This directory contains the sources of the GNU C Library.
See the file "version.h" for what release version you have.

The GNU C Library is the standard system C library for all GNU systems,
and is an important part of what makes up a GNU system.  It provides the
system API for all programs written in C and C-compatible languages such
as C++ and Objective C; the runtime facilities of other programming
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In GNU/Linux systems, the C library works with the Linux kernel to
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In GNU/Hurd systems, it works with a microkernel and Hurd servers.

The GNU C Library implements much of the POSIX.1 functionality in the
GNU/Hurd system, using configurations i[4567]86-*-gnu.

When working with Linux kernels, this version of the GNU C Library
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Also note that the shared version of the libgcc_s library must be
installed for the pthread library to work correctly.

The GNU C Library supports these configurations for using Linux kernels:

	aarch64*-*-linux-gnu
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	sparc64*-*-linux-gnu

If you are interested in doing a port, please contact the glibc
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See the file INSTALL to find out how to configure, build, and install
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