* lib/sys_stat.in.h: Invoke _GL_INLINE_HEADER_BEGIN,
_GL_INLINE_HEADER_END. Include <errno.h>, <unistd.h>.
(_GL_ISSYMLINK_INLINE, _GL_ISSYMLINKAT_INLINE): New macros.
(issymlink, issymlinkat): New declarations.
* lib/unistd.in.h: Do the #include <fcntl.h>, when needed for O_CLOEXEC,
at the end of the file. So that when <fcntl.h> includes <sys/stat.h>,
the declarations of readlink() and readlinkat() on native Windows are
already present.
* lib/issymlink.c: New file.
* lib/issymlinkat.c: New file.
* m4/sys_stat_h.m4 (gl_SYS_STAT_H_REQUIRE_DEFAULTS): Initialize
GNULIB_ISSYMLINK, GNULIB_ISSYMLINKAT.
* modules/sys_stat-h (Depends-on): Add extern-inline.
(Makefile.am): Substitute GNULIB_ISSYMLINK, GNULIB_ISSYMLINKAT.
* modules/issymlink: New file.
* modules/issymlinkat: New file.
To test for a symlink, use readlink, not lstat+S_ISLNK,
when the lstat is used only for the symlink test.
This avoids EOVERFLOW issues.
* lib/lchown.c (rpl_lchown) [CHOWN_CHANGE_TIME_BUG]:
* lib/rename.c (rpl_rename):
[!(_WIN32 && !__CYGWIN__) && (RENAME_TRAILING_SLASH_SOURCE_BUG
|| RENAME_DEST_EXISTS_BUG || RENAME_HARD_LINK_BUG)]:
* lib/renameatu.c (renameatu):
[HAVE_RENAMEAT && RENAME_TRAILING_SLASH_SOURCE_BUG]:
* lib/unlink.c (rpl_unlink):
* lib/unlinkat.c (rpl_unlinkat):
* lib/utimens.c (lutimens) [!HAVE_LUTIMENS]:
Prefer readlink to lstat+S_ISLNK.
* modules/lchown, modules/rename, modules/unlink, modules/utimens:
(Depends-on): Add readlink.
* modules/unlinkat (Depends-on): Add fstatat, readlinkat.
Problem reported by Leah Neukirchen <https://bugs.gnu.org/79139>.
* lib/copy-file-range.c: Include sys-limits.h.
(copy_file_range) [glibc 2.42 and earlier]:
Copy at most SYS_BUFSIZE_MAX bytes.
* m4/copy-file-range.m4 (gl_FUNC_COPY_FILE_RANGE):
Replace on glibc platforms, as well as on Linux platforms.
* modules/copy-file-range (Files): Add lib/sys-limits.h.
* lib/copy-file-range.c [__linux__ && HAVE_COPY_FILE_RANGE]:
Include <linux/version.h>. Include <sys/utsname.h>
only for kernel 5.2 and earlier.
(CHECK_LINUX_KERNEL_VERSION): New macro.
(copy_file_range) [__linux__ && HAVE_COPY_FILE_RANGE]:
Call utsname only when built for kernel 5.2 and earlier.
(copy_file_range) [!__linux__ && HAVE_COPY_FILE_RANGE]:
Use underlying copy_file_range. This doesn’t change
behavior since the code is not compiled in this case,
but it makes the code a bit cleaner.
* modules/copy-file-range (Depends-on): Add bool.
Suggested by Collin Funk.
* modules/nstrftime-limited: New file, based on modules/nstrftime.
* modules/nstrftime (Depends-on): Add nstrftime-limited.
Add localename-unsafe. Remove localename-unsafe-limited.
(configure.ac): Invoke gl_MODULE_INDICATOR.
(Makefile.am): Don't add nstrftime.c to lib_SOURCES; this would conflict
with modules/nstrftime-limited.
(Link): Add $(LIBTHREAD).
* lib/strftime.c (SUPPORT_NON_GREG_CALENDARS_IN_STRFTIME): Don't force
to false if GNULIB_NSTRFTIME is defined.
* modules/nstrftime-tests (Makefile.am): Link test-nstrftime,
test-nstrftime-?? with $(LIBTHREAD).
* lib/git-merge-changelog.c: Suggest to pass %Y as 4th parameter.
Include <errno.h>, spawn-pipe.h, wait-process.h, xvasprintf.h,
c-ctype.h.
(_): New macro.
(execute_and_read_line): New function, from lib/javacomp.c.
(is_all_hex_digits): New function.
(long_options): Moved into 'main'.
(usage): Document the --debug option.
(main): Accept a --debug option and turn on debugging at runtime instead
of compile-time. Accept an optional other_conflict_label parameter.
Improve 'downstream' determination using two heuristics.
* modules/git-merge-changelog (Depends-on): Add spawn-pipe,
wait-process, xvasprintf, c-ctype.
* lib/calendars.h: New file.
* lib/calendar-thai.h: New file.
* lib/calendar-persian.h: New file.
* lib/calendar-ethiopian.h: New file.
* lib/strftime.h (nstrftime): Document which directives don't work with
non-Gregorian calendars.
* lib/strftime.c (SUPPORT_NON_GREG_CALENDARS_IN_STRFTIME): New macro.
Include localcharset.h, localename.h, calendars.h.
(CAL_ARGS): New macro.
(my_strftime): Recognize locales with non-Gregorian calendars. Pass cal
and caldate down to __strftime_internal.
(__strftime_internal): Accept additional parameters cal, caldate.
Remove rejection of modifier 'O' for directive 'Y' and allow a non-ASCII
alternate digits base. Produce calendar-aware output for the directives
'b', 'h', 'B', 'x', 'd', 'e', 'm', 'Y'.
* modules/nstrftime (Files): Add the calendar files.
(Depends-on): Add localcharset.
(Link): New section.
* modules/fprintftime (Link): New section.
* tests/test-nstrftime-DE.c: New file.
* tests/test-nstrftime-TH.c: New file.
* tests/test-nstrftime-IR.c: New file.
* tests/test-nstrftime-ET.c: New file.
* modules/nstrftime-tests (Files): Add them.
(Depends-on): Add localcharset, setenv.
(Makefile.am): Link test-nstrftime with $(INTL_MACOSX_LIBS). Arrange to
compile and run test-nstrftime-DE, test-nstrftime-TH, test-nstrftime-IR,
test-nstrftime-ET.
* lib/localename-unsafe.c: Include windows-mutex.h instead of
glthread/lock.h.
(get_lcid_lock): Change type to glwthread_mutex_t.
(get_lcid): Use glwthread_mutex_* functions.
* modules/localename-unsafe (Depends-on): Add windows-mutex. Remove
lock.
Problem reported by Vivien Kraus in:
https://lists.gnu.org/r/bug-gnulib/2025-07/msg00073.html
This module never caught on.
* lib/safe-alloc.h (REALLOC_N): Remove.
* modules/safe-alloc: Now obsolete.
* tests/test-safe-alloc.c (main): Remove REALLOC_N test.
Also, fix a too-low LDBL_MAX on this platform, a problem that
contributed to LDBL_NORM_MAX test failures with C23 PowerPC GCC
with ibmlongdouble.
* lib/float.c (gl_LDBL_MAX): On PowerPC with ibmlongdouble, the
correct value is 2**1024 - 2**918, not 2**1024 - 2**971. Also,
use C99 hex double notation for the divisor, as it’s clearer and
should work nowadays.
* lib/float.in.h: Simplify by not worring whether it’s AIX or
GNU/Linux when redefining LDBL_* macros on PowerPC GCC with
ibmlongdouble, as the problem seems to be universal then.
(LDBL_NORM_MAX): On PowerPC GCC with ibmlongdouble, define to be
LDBL_MAX, so that it’s 2**1024 - 2**918, doubling GCC’s value
if supplied.
* modules/float-h-tests (Depends-on): Remove floorl, ldexpl.
Add truncl.
(test_float_h_LDADD): Likewise for libraries.
* tests/test-float-h.c (test_isfinitel): New static function,
so that we need not rely on isfinitel.
(normalize_long_double): Work even if X is negative or not finite.
Do not rely on frexpl or ldexpl. Use truncl instead of floorl
so that the negative results are consistent with positive.
Defend against fritzy PowerPC long double arithmetic.
Problem reported by C. Neidhal
<https://lists.gnu.org/r/bug-gnulib/2025-07/msg00021.html>.
* modules/float-h-tests (Depends-on): Add floorl, frexpl, ldexpl.
(test_float_h_LDADD): Link the resulting libms too.
* tests/test-float-h.c: Include math.h.
(normalize_long_double): New function.
(test_long_double): Use it.
* lib/kwset.h: New file, from GNU grep.
* lib/kwset.c: New file, from GNU grep.
Include <limits.h>, minmax.h. Don't include system.h.
(IGNORE_DUPLICATE_BRANCH_WARNING): New macro, from grep/src/system.h.
(NCHAR): New enum value, from grep/src/system.h.
(to_uchar): New function, from grep/src/system.h.
* modules/kwset: New file.
Reported by Alejandro Colomar <alx@kernel.org>.
* lib/stdcountof.in.h (countof): Parenthesize better.
* modules/stdcountof-h (Description): To appear in C2y, not C23.
* tests/test-stdcountof-h.c: New file.
* tests/test-stdcountof-h-c++.cc: New file.
* modules/stdcountof-h-tests: New file.
* modules/stdcountof-h-c++-tests: New file.
* m4/stddef_h.m4 (gl_STDDEF_H): Set and substitute HAVE_C_UNREACHABLE.
Don't test for unreachable in <stddef.h> in C++. Set
GL_GENERATE_STDDEF_H to true always.
* lib/stddef.in.h (gl_unreachable): Renamed from _gl_unreachable. Test
HAVE_C_UNREACHABLE.
(unreachable): Don't define in C++ mode. Don't define if
HAVE_C_UNREACHABLE is 1.
* modules/stddef-h (Makefile.am): Substitute HAVE_C_UNREACHABLE.
* tests/test-stddef-h.c (test_unreachable_optimization,
test_unreachable_noreturn): Don't define in C++ mode.
(test_gl_unreachable_optimization, test_gl_unreachable_noreturn): New
functions.
* tests/test-stddef-h-c++3.cc (test_cxx_unreachable_1): Test
gl_unreachable instead of unreachable.
* lib/error.in.h (__gl_error_call1): Use gl_unreachable instead of
unreachable.
* modules/fcntl-safer-tests (Depends-on): Add mkfifo.
(configure.ac) Check for alarm decl.
* tests/test-fcntl-safer.c:
Include sys/stat.h, for mkfifo.
[HAVE_DECL_ALARM]: Include signal.h, for alarm.
On deficient platforms where we must check for directories
ourselves when opening files, check before opening as well as after.
This prevents a hang when trying to open a special file like a
fifo in a context where a directory is required. Although there
is still a race so we could still hang in a perverse situation,
it’s the best we can do and it is better than hanging in the
more-common case.
* lib/open.c (lstatif): New static function.
(open) [REPLACE_FCHDIR]: Also inspect O_CREAT.
* lib/open.c (open), lib/openat.c (rpl_openat):
When checking for directories, also do this before opening.
Also, respect O_NOFOLLOW when checking for directories.
* lib/openat.c: Remove a few more unnecessary differences from open.c.
* modules/open (Depends-on): Depend on lstat.
* modules/openat (Depends-on): Add fstatat.
* modules/open-tests, modules/openat-tests:
(configure.ac) Check for alarm decl.
* tests/test-open.c, tests/test-openat.c:
Include sys/stat.h, for mkfifo.
[HAVE_DECL_ALARM]: Include signal.h, for alarm.
* tests/test-open.h (test_open): Fail if test takes too long
because we tried to open a fifo. Test opening /dev/null,
/dev/tty and a fifo, with a trailing "/" and with O_DIRECTORY.
Reported by Pierre Ossman <ossman@cendio.se>
at <https://savannah.gnu.org/bugs/?67152>.
* m4/stddef_h.m4 (gl_STDDEF_H): Also test whether unreachable is defined
by <stddef.h> in C++ mode.
* lib/stddef.in.h: In C++ mode, include <utility> and either import
'unreachable' from the std namespace or define it as an inline function.
* tests/test-stddef-h.c: Disable some tests in C++ mode.
* tests/test-stddef-h-c++.cc: Perform nearly the same tests in C++ mode
as in C mode.
* tests/test-stddef-h-c++2.cc: Rename some variables. Disable the NULL
test with clang on Windows.
* tests/test-stddef-h-c++3.cc: New file.
* modules/stddef-h-c++-tests (Files): Include it.
(Makefile.am): Link test-stddef-h-c++ with test-stddef-h-c++3.o.
Suggested by Paul Eggert in:
<https://lists.gnu.org/archive/html/bug-gnulib/2025-05/msg00216.html>.
* m4/stdckdint_h.m4: New file.
* modules/stdckdint-h (Files): Add m4/stdckdint_h.m4.
(configure.ac): Remove checks and just invoke gl_STDCKDINT_H.
(Makefile.am): Replace variables set by ./configure.
* lib/stdckdint.in.h: Include the compilers header if it exists. Add
comment mentioning expected future standardization in C++26.
(ckd_add, ckd_sub, ckd_mul): Only define if the compilers definitions do
not work.
