Paul Eggert [Fri, 10 Feb 2023 01:09:23 +0000 (17:09 -0800)]
nullptr: work around Apple clang 14 issue
Problem reported by Bruno Haible in:
https://lists.gnu.org/r/bug-gnulib/2023-02/msg00098.html
* doc/gnulib.texi (nullptr): Document limitations better.
* m4/nullptr.m4 (gl_NULLPTR): Check for incompatibility of macOS
clang 14.0.0 (clang-1400.0.29.202), where <stddef.h> defines a
non-working nullptr macro.
Bruno Haible [Thu, 9 Feb 2023 15:08:00 +0000 (16:08 +0100)]
limits-h: Work around a clang 15 bug.
* m4/limits-h.m4 (gl_LIMITS_H): Test also for BOOL_MAX.
* lib/limits.in.h: Handle the case where BOOL_WIDTH is present and
BOOL_MAX is missing.
* doc/posix-headers/limits.texi: Mention the clang bug.
Bruno Haible [Wed, 8 Feb 2023 22:43:03 +0000 (23:43 +0100)]
nl_langinfo tests: Add another test.
* tests/test-nl_langinfo2.c: New file.
* tests/test-nl_langinfo2.sh: New file.
* modules/nl_langinfo-tests (Files): Add them. Add
intl-thread-locale.m4.
(Depends-on): Add c-strcasestr, stdbool.
(configure.ac): Invoke gt_FUNC_USELOCALE.
(Makefile.am): Arrange to compile test-nl_langinfo2 and test it through
test-nl_langinfo2.sh.
Paul Eggert [Wed, 8 Feb 2023 04:37:09 +0000 (20:37 -0800)]
nullptr: test for compilers at autoconf-time
* m4/nullptr.m4 (gl_NULLPTR): Test for C and C++ compiler usage at
autoconf-time. This should work better than testing at
configure-time. Also, push and pop languages so we check the
proper compiler.
Paul Eggert [Tue, 7 Feb 2023 23:11:32 +0000 (15:11 -0800)]
nullptr: test for C++ nullptr at configure-time
* m4/nullptr.m4 (gl_NULLPTR): Test for C++ support for nullptr
at configure-time, as we already do for C support.
This should be more reliable than maintaining #ifdefs by hand.
Bruno Haible [Tue, 7 Feb 2023 12:36:23 +0000 (13:36 +0100)]
Fix a copyright header - module license mismatch.
Reported by Bjarni Ingi Gislason <bjarniig@simnet.is> in
<https://lists.gnu.org/archive/html/bug-gnulib/2023-02/msg00057.html>.
* lib/gen-uni-tables.c (output_predicate): For uniwidth/width2.h, use an
LGPLv2+ license.
(output_nonspacing_property): Use an LGPLv2+ license.
* lib/uniwidth/width0.h: Regenerated.
* lib/uniwidth/width2.h: Likewise.
Bruno Haible [Mon, 6 Feb 2023 03:15:15 +0000 (04:15 +0100)]
c-nullptr: Fix conflict with libstdc++ in GCC >= 11.
Reported by Bjarni Ingi Gislason <bjarniig@simnet.is> in
<https://lists.gnu.org/archive/html/bug-gnulib/2023-02/msg00030.html>.
* m4/c-nullptr.m4 (gl_C_NULLPTR): Don't define nullptr if it is already
defined. In C++ mode, ignore the result of the configure test and don't
define it when we know that the C++ compiler already supports it.
Paul Eggert [Sun, 5 Feb 2023 21:20:54 +0000 (13:20 -0800)]
sh-quote: backport fix from diffutils
* lib/sh-quote.c (init_sh_quoting_options):
Use C89 through C17 style for parameterless static function.
This avoided a warning when compiling diffutils.
This patch is backported from a circa-2009 diffutils patch
and lets us remove diffutils/gl/lib/sh-quote.c.diff; see:
https://git.savannah.gnu.org/cgit/diffutils.git/commit/?id=8c3d25a63a2c5912170ef6e13f748f3904e6b5cf
Bruno Haible [Sun, 5 Feb 2023 16:20:50 +0000 (17:20 +0100)]
Update build-aux/po/Makefile.in.in.
Reported by Reuben Thomas <rrt@sc3d.org> in
<https://lists.gnu.org/archive/html/bug-gnulib/2023-02/msg00020.html>.
* build-aux/po/Makefile.in.in: Sync from GNU gettext 0.21.1.
Fixes:
- In the .po -> .gmo rules, consider the newest changes to the POT file.
- Emit a warning when creating a tarball without POT file.
Paul Eggert [Sat, 4 Feb 2023 18:07:11 +0000 (10:07 -0800)]
fts: pacify GCC 13 -Wuse-after-free
Problem reported by Peter Frazier in:
https://lists.gnu.org/r/bug-gnulib/2023-02/msg00000.html
* lib/fts.c: Include stdint.h.
(fts_build): Do not access freed pointer directly; instead,
save its bit-pattern into a uintptr_t, and use that to compare.
(ADJUST): Likewise, but more trickily since this hack
puns pointer types and relies on undefined behavior.
* modules/fts (Depends-on): Add stdint.
Bruno Haible [Sat, 4 Feb 2023 13:31:08 +0000 (14:31 +0100)]
assert-h, verify: Fix conflict with standard C++ header files on macOS.
* lib/verify.h (_Static_assert): Don't redefine with clang ≥ 3.8.0
in C++ mode.
* tests/test-assert-h-c++.cc: Also check against conflict with the
standard C++ header files.
* tests/test-assert-h-c++2.cc: Likewise.
Bruno Haible [Mon, 30 Jan 2023 11:30:21 +0000 (12:30 +0100)]
at-internal: Add support for z/OS.
Reported and draft patch by Igor Todorovski <itodorov@ca.ibm.com>.
* lib/openat-proc.c [z/OS]: Include <termios.h>.
(openat_proc_name): For z/OS, use an approach similar to kLIBC, with
3 lines of z/OS specific code by Igor Todorovski <itodorov@ca.ibm.com>.
Bruno Haible [Sat, 28 Jan 2023 18:39:23 +0000 (19:39 +0100)]
unistdio/*printf: Fix negative width handling for %U, %lU, %llU.
* lib/vasnprintf.c (VASNPRINTF): In the code for %U, %lU, %llU, test for
the FLAG_LEFT bit in the flags variable.
* tests/unistdio/test-u8-printf1.h (test_xfunction): Add tests for width
given as argument for the directives %U, %lU, %llU, %s, %a, %f, %e, %g.
* tests/unistdio/test-u16-printf1.h (test_xfunction): Likewise.
* tests/unistdio/test-u32-printf1.h (test_xfunction): Likewise.
* tests/unistdio/test-ulc-printf1.h (test_xfunction): Likewise.
Bruno Haible [Sat, 28 Jan 2023 18:12:42 +0000 (19:12 +0100)]
vasnprintf-posix: Fix possible bug with negative width handling for %lc.
* lib/vasnprintf.c (VASNPRINTF): In the code for %lc in vasnprintf, test
for the FLAG_LEFT bit in the flags variable.
* tests/test-vasnprintf-posix.c (test_function): Add tests for width
given as argument for the directives %c, %lc.
* tests/test-vasprintf-posix.c (test_function): Likewise.
* tests/test-snprintf-posix.h (test_function): Likewise.
* tests/test-sprintf-posix.h (test_function): Likewise.
* tests/test-snprintf-posix.c: Include <wchar.h>, for wint_t.
* tests/test-sprintf-posix.c: Likewise.
* tests/test-vsnprintf-posix.c: Likewise.
* tests/test-vsprintf-posix.c: Likewise.
Bruno Haible [Sat, 28 Jan 2023 18:05:24 +0000 (19:05 +0100)]
vasnprintf-posix: Fix possible bug with negative width handling for %lc.
* lib/vasnprintf.c (VASNPRINTF): In the code for %lc in vasnprintf, test
for the FLAG_LEFT bit in the flags variable.
* tests/test-vasnprintf-posix.c (test_function): Add tests for width
given as argument for the directives %c, %lc.
* tests/test-vasprintf-posix.c (test_function): Likewise.
* tests/test-snprintf-posix.h (test_function): Likewise.
* tests/test-sprintf-posix.h (test_function): Likewise.
* tests/test-snprintf-posix.c: Include <wchar.h>, for wint_t.
* tests/test-sprintf-posix.c: Likewise.
Bruno Haible [Sat, 28 Jan 2023 17:17:17 +0000 (18:17 +0100)]
vasnprintf-posix: Fix negative width handling for %ls directive.
Reported by clang via Po Lu <luangruo@yahoo.com>.
* lib/vasnprintf.c (VASNPRINTF): In the code for %ls in vasnprintf and
for %s in vasnwprintf, test for the FLAG_LEFT bit in the flags variable.
* tests/test-vasnprintf-posix.c (test_function): Add tests for width
given as argument for the directives %s, %ls.
* tests/test-vasprintf-posix.c (test_function): Likewise.
* tests/test-snprintf-posix.h (test_function): Likewise.
* tests/test-sprintf-posix.h (test_function): Likewise.
Bruno Haible [Sat, 28 Jan 2023 10:52:40 +0000 (11:52 +0100)]
Avoid clang warnings regarding [[__nodiscard__]].
* m4/gnulib-common.m4 (gl_COMMON_BODY): For clang, in C++ mode, ignore
the __has_c_attribute value and define _GL_ATTRIBUTE_NODISCARD to
__attribute__ ((__warn_unused_result__)), not [[__nodiscard__]].
* m4/gnulib-common.m4 (gl_COMMON_BODY): For clang versions ≥ 6, < 10,
in C++ mode, ignore the __has_c_attribute value and define
_GL_ATTRIBUTE_MAYBE_UNUSED to __attribute__ ((__unused__)), not
[[__maybe_unused__]].
Bruno Haible [Tue, 24 Jan 2023 12:44:07 +0000 (13:44 +0100)]
alignasof, stdalign: Fix a compilation error on FreeBSD 12.0.
* m4/stdalign.m4 (gl_ALIGNASOF): In C mode, prefer __builtin_offsetof
over offsetof when possible, since __builtin_offsetof works also when
<stddef.h> has not been fully included yet.
Bruno Haible [Sun, 22 Jan 2023 15:34:24 +0000 (16:34 +0100)]
doc: Update list of target platforms.
* doc/gnulib-intro.texi (Supported Platforms): Mark musl libc, Android,
and MSVC as "occasionally tested". Update the version numbers of some
OSes. Combine paragraphs regarding mingw and MSVC.
(Formerly Supported Platforms): Mark AIX 5, 6 as "formerly supported".
Bruno Haible [Sun, 22 Jan 2023 13:21:48 +0000 (14:21 +0100)]
Resolve conflicts for functions introduced in Android API level 26.
* m4/getdomainname.m4 (gl_FUNC_GETDOMAINNAME): Test for getdomainname
using gl_CHECK_FUNCS_ANDROID instead of AC_CHECK_FUNCS. Conditionally
set REPLACE_GETSUBOPT.
Bruno Haible [Sun, 22 Jan 2023 11:41:14 +0000 (12:41 +0100)]
Resolve conflicts for functions introduced in Android API level 21.
* m4/fts.m4 (gl_FUNC_FTS_CORE): Use rpl_* symbols also when the system
will have fts_open in a future version.
* m4/iswblank.m4 (gl_FUNC_ISWBLANK): Conditionally set REPLACE_ISWBLANK.
* m4/mbtowc.m4 (gl_FUNC_MBTOWC): Conditionally set REPLACE_MBTOWC.
* m4/vdprintf.m4 (gl_REPLACE_VDPRINTF): Conditionally set
REPLACE_VDPRINTF.
* m4/wcsnrtombs.m4 (gl_FUNC_WCSNRTOMBS): Conditionally set
REPLACE_WCSNRTOMBS.