Bruno Haible [Sun, 24 Jul 2011 10:20:41 +0000 (12:20 +0200)]
fsusage: Enable large volume support on AIX >= 5.2.
* m4/fsusage.m4 (gl_FILE_SYSTEM_USAGE): If 'struct statvfs64' has a
larger f_blocks field than 'struct statvfs', define STAT_STATVFS64
instead of STAT_STATVFS.
* lib/fsusage.c (get_fs_usage) [STAT_STATVFS64]: Use statvfs64.
Paul Eggert [Fri, 22 Jul 2011 17:07:18 +0000 (10:07 -0700)]
fsusage: port to MacOS X 10.7 with 4 TiB file systems
* m4/fsusage.m4 (gl_FILE_SYSTEM_USAGE): Reject statvfs
implementations that use only 32 bits to count blocks.
On typical hosts with 1024-byte blocks, this fails with file
systems as small as 4 TiB. Problem reported by Herb Wartens
<http://debbugs.gnu.org/9140> and this should also fix a similar
problem reported by Tim Spriggs <http://debbugs.gnu.org/7355>.
file-has-acl: use acl_extended_file_nofollow if available
* lib/acl-internal.h (HAVE_ACL_EXTENDED_FILE): New macro.
(acl_extended_file): New macro.
* lib/file-has-acl.c (file_has_acl): Use acl_extended_file_nofollow.
* m4/acl.m4 (gl_FUNC_ACL): Check for acl_extended_file_nofollow.
This addresses http://bugzilla.redhat.com/692823.
Bruno Haible [Thu, 21 Jul 2011 22:16:46 +0000 (00:16 +0200)]
Declare system functions in a way that works with C++.
* m4/fdopendir.m4 (gl_FUNC_FDOPENDIR) [C++]: In the test program,
declare fdopendir as extern "C".
* m4/frexpl.m4 (gl_FUNC_FREXPL_WORKS) [C++]: In the test program,
declare frexpl as extern "C".
* m4/getaddrinfo.m4 (gl_GETADDRINFO) [C++]: In the test program,
declare gai_strerror as extern "C".
* m4/getdomainname.m4 (gl_FUNC_GETDOMAINNAME) [C++]: In the test
programs, declare gai_strerror as extern "C".
* m4/getlogin_r.m4 (gl_FUNC_GETLOGIN_R) [C++]: In the test program,
declare getlogin_r as extern "C".
* m4/ioctl.m4 (gl_FUNC_IOCTL) [C++]: In the test program, declare ioctl
as extern "C".
* m4/ldexpl.m4 (gl_FUNC_LDEXPL_WORKS) [C++]: In the test program,
declare ldexpl as extern "C".
* m4/logb.m4 (gl_FUNC_LOGB) [C++]: In the test programs, declare logb
as extern "C".
* m4/ls-mntd-fs.m4 (gl_LIST_MOUNTED_FILE_SYSTEMS) [C++]: In the test
program, declare getmntinfo as extern "C".
* m4/stpncpy.m4 (gl_FUNC_STPNCPY) [C++]: In the test program, declare
stpncpy as extern "C".
* m4/strerror_r.m4 (gl_FUNC_STRERROR_R_WORKS) [C++]: In the test
program, declare __xpg_strerror_r as extern "C".
* m4/strndup.m4 (gl_FUNC_STRNDUP) [C++]: In the test program, declare
strndup as extern "C".
* m4/sys_select_h.m4 (gl_HEADER_SYS_SELECT) [C++]: In the test program,
declare memset and bzero as extern "C".
Reported by Sam Steingold <sds@gnu.org>.
timer-time: A new module to check for timer_settime()
* m4/timer_time.m4: Check for the POSIX function.
* modules/timer-time: Add the new module.
* MODULES.html.sh (Compat checks for POSIX:2008 functions):
Mention it.
* doc/posix-functions/timer_create.texi: Add timer-time as
the module, and update the platforms where unavailable.
* doc/posix-functions/timer_delete.texi: Likewise.
* doc/posix-functions/timer_gettime.texi: Likewise.
* doc/posix-functions/timer_settime.texi: Likewise.
Paul Eggert [Wed, 20 Jul 2011 00:57:20 +0000 (02:57 +0200)]
pthread_sigmask: assume POSIX threads if --avoid=threadlib
* m4/pthread_sigmask.m4 (gl_FUNC_PTHREAD_SIGMASK): If gl_THREADLIB is
not defined, assume POSIX threads and look for pthread_sigmask in
$LIBS, without changing $CPPFLAGS.
Bruno Haible [Tue, 19 Jul 2011 21:43:05 +0000 (23:43 +0200)]
strstr: Update cross-compilation guess.
* m4/strstr.m4 (gl_FUNC_STRSTR): On glibc > 2.12 with x86 or x86_64
CPUs, guess no, in view of glibc
BZ #12100 <http://sourceware.org/bugzilla/show_bug.cgi?id=12100>.
Suggested by Eric Blake. Reported by Reuben Thomas.
getopt-gnu: suppress core dumps from detection code
* m4/getopt.m4 (gl_GETOPT_CHECK_HEADERS): Use the nocrash module
to suppress core dumps that may well occur on glibc systems.
These core dumps might not be cleaned up automatically, or could
trigger some system core dump handling logic.
* modules/getopt-gnu: Depend on nocrash.
Paul Eggert [Sat, 16 Jul 2011 01:27:51 +0000 (18:27 -0700)]
doc: Document NonStop portability issues.
* doc/posix-functions/sigaction.texi (sigaction):
* doc/posix-headers/signal.texi (signal.h):
Document NonStop. See Joachim Schmitz in
http://lists.gnu.org/archive/html/bug-coreutils/2011-07/msg00062.html
Bruno Haible [Sat, 16 Jul 2011 00:36:07 +0000 (02:36 +0200)]
ffs: More tests.
* tests/test-ffs.c (NBITS): New macro.
(main): Add more tests.
* tests/test-ffsl.c (NBITS): New macro.
(main): Add more tests.
* tests/test-ffsll.c (NBITS): New macro.
(main): Add more tests.
Bruno Haible [Tue, 12 Jul 2011 09:41:24 +0000 (11:41 +0200)]
Rename module 'link-warning' to 'snippet/link-warning'.
* modules/snippet/link-warning: Renamed from modules/link-warning.
(Files, Makefile.am): Update.
* build-aux/snippet/link-warning.h: Renamed from
build-aux/link-warning.h.
* MODULES.html.sh (Support for building libraries and executables):
Update.
Paul Eggert [Tue, 12 Jul 2011 08:16:45 +0000 (01:16 -0700)]
modules/_Exit-tests: test _Noreturn too
* tests/test-_Exit.c (MTA, Charlie): New functions, taken from the
old tests/test-stdnoreturn.c. This tests the _Noreturn keyword a bit.
(main): Use them.
Paul Eggert [Tue, 12 Jul 2011 08:16:08 +0000 (01:16 -0700)]
stdnoreturn, stdnoreturn-tests: remove modules
They're not needed here and a bit premature for use elsewhere. See
<http://lists.gnu.org/archive/html/bug-gnulib/2011-07/msg00209.html>.
* m4/stdnoreturn.m4, modules/stdnoreturn, modules/stdnoreturn-tests:
* tests/test-stdnoreturn.c: Remove files.
* MODULES.html.sh (_Noreturn <stdnoreturn.h>): Remove section.
* lib/openat.h, lib/sigpipe-die.h, lib/xalloc.h, lib/xmemdup0.h:
* lib/xstrtol.h: Use _Noreturn rather than including <stdnoreturn.h>
and using noreturn.
* modules/openat, modules/sigpipe-die, modules/xalloc:
* modules/xmemdup0, modules/xstrtol:
Remove dependency on stdnoreturn.
Paul Eggert [Tue, 12 Jul 2011 08:14:47 +0000 (01:14 -0700)]
_Noreturn-tests: remove module
* modules/_Noreturn-tests: Remove.
* modules/stdnoreturn-tests (Files): Remove tests/test-_Noreturn.c.
* tests/test-_Noreturn.c: Remove.
* tests/test-stdnoreturn.c: Merge from the old
tests/test-_Noreturn.c, testing both noreturn and _Noreturn.
Paul Eggert [Tue, 12 Jul 2011 08:02:54 +0000 (01:02 -0700)]
stdlib: use _Noreturn
* lib/stdlib.in.h (_GL_ATTRIBUTE_NORETURN): Remove.
(_Exit): Use _Noreturn rather than _GL_ATTRIBUTE_NORETURN.
* modules/stdlib (Depends-on): Add _Noreturn.
(stdlib.h): Depend on $(_NORETURN_H), and copy it in.
Paul Eggert [Sat, 9 Jul 2011 21:56:56 +0000 (14:56 -0700)]
stdint: respect system's intmax_t if INTMAX_MAX
* lib/stdint.in.h (intmax_t, uintmax_t): If the system defines
INTMAX_MAX, assume its intmax_t is OK. Similarly for and
uintmax_t. This is for some Mac OS X builds, where intmax_t is
long but int64_t is long long, and where we will clash with the
system intmax_t if we override it. See
<http://lists.gnu.org/archive/html/bug-gnulib/2011-07/msg00160.html>.
(INTMAX_C, UINTMAX_C): For consistency, respect the system's
INTMAX_C if INTMAX_MAX and INTMAX_C are both defined, and
similarly for UINTMAX_C.
Bruno Haible [Fri, 8 Jul 2011 23:37:58 +0000 (01:37 +0200)]
pthread_sigmask: Work around IRIX bug.
* m4/pthread_sigmask.m4 (gl_FUNC_PTHREAD_SIGMASK): Test for the IRIX
bug.
* lib/pthread_sigmask.c (pthread_sigmask): usleep for some time when
there may be unblocked pending signals.
* doc/posix-functions/pthread_sigmask.texi: Mention the IRIX bug.
Bruno Haible [Fri, 8 Jul 2011 23:01:36 +0000 (01:01 +0200)]
pthread_sigmask: Work around Cygwin bug.
* m4/pthread_sigmask.m4 (gl_FUNC_PTHREAD_SIGMASK): Test for the Cygwin
bug.
* lib/pthread_sigmask.c (pthread_sigmask): Fix the return value from
the system's pthread_sigmask function.
* doc/posix-functions/pthread_sigmask.texi: Mention the Cygwin bug.
Bruno Haible [Fri, 8 Jul 2011 22:27:00 +0000 (00:27 +0200)]
pthread_sigmask: Work around bug in single-threaded implementation.
* m4/pthread_sigmask.m4 (gl_FUNC_PTHREAD_SIGMASK): Test for the
FreeBSD, HP-UX, Solaris bug.
(gl_PREREQ_PTHREAD_SIGMASK): New macro.
* lib/pthread_sigmask.c: Include <stddef.h>.
(pthread_sigmask): If HAVE_PTHREAD_SIGMASK, define as a wrapper around
the system's pthread_sigmask function.
* modules/pthread_sigmask (configure.ac): Invoke
gl_PREREQ_PTHREAD_SIGMASK.
* doc/posix-functions/pthread_sigmask.texi: Mention bug on FreeBSD,
HP-UX, Solaris.
Bruno Haible [Fri, 8 Jul 2011 17:12:14 +0000 (19:12 +0200)]
Tests for module 'pthread_sigmask'.
* modules/pthread_sigmask-tests: New file.
* tests/test-pthread_sigmask1.c: New file, based on
tests/test-sigprocmask.c.
* tests/test-pthread_sigmask2.c: New file.
Paul Eggert [Fri, 8 Jul 2011 17:49:07 +0000 (10:49 -0700)]
pthread_sigmask: Assume POSIX when not gl_THREADLIB.
* m4/pthread_sigmask.m4 (gl_FUNC_PTHREAD_SIGMASK):
When gl_THREADLIB is not in use, assume that the POSIX sematics
are desired. This is better for Emacs, which uses POSIX semantics
on GNUish and/or POSIXish platforms, and does not use threads at
all otherwise.
Eric Blake [Thu, 7 Jul 2011 17:37:37 +0000 (11:37 -0600)]
fts: introduce FTS_NOATIME
This gives clients the option to try a non-invasive traversal,
where merely visiting a directory does not update its timestamp,
where such is supported by the kernel.
Note that this is best-effort. FTS_NOATIME is silently ignored
on systems that lack O_NOATIME support - it is up to the caller
to decide whether to issue an error when the gnulib replacement
<fcntl.h> defined O_NOATIME to 0, and/or detect older Linux
kernels where O_NOATIME is defined to non-zero but has no effect.
Note that whiteout support and O_NOATIME support are currently
orthogonal: there is no way to get O_NOATIME behavior when using
__opendir2 to visit whiteouts on BSD systems. So far, I don't
know of any system with both __opendir2 and O_NOATIME; if such
a system exists, then fts_build() needs a tweak (then again,
such a system would probably add DTF_NOATIME for __opendir2).
* lib/fts_.h (FTS_NOATIME): New bit flag.
(FTS_OPTIONMASK): Adjust.
* lib/fts.c (diropen, fts_open, fts_build): Honor it.
(fd_ring_check): Debug code unconditionally uses O_NOATIME.
Needed for findutils bug http://savannah.gnu.org/bugs/?33724
Bruno Haible [Fri, 8 Jul 2011 02:13:53 +0000 (04:13 +0200)]
signal-c++-tests: Check declaration of pthread_sigmask.
* tests/test-signal-c++.cc: Check declaration of pthread_sigmask.
* modules/signal-c++-tests (Makefile.am): Link test-signal-c++ against
$(LIB_PTHREAD_SIGMASK).
Bruno Haible [Fri, 8 Jul 2011 02:05:45 +0000 (04:05 +0200)]
pthread_sigmask: Fix link requirements on OSF/1 5.1 and with pth.
* lib/signal.in.h (pthread_sigmask): Override if
REPLACE_PTHREAD_SIGMASK is 1.
* m4/signal_h.m4 (gl_SIGNAL_H_DEFAULTS): Initialize
REPLACE_PTHREAD_SIGMASK.
* m4/pthread_sigmask.m4 (gl_FUNC_PTHREAD_SIGMASK): Set also
REPLACE_PTHREAD_SIGMASK. Set and substitute LIB_PTHREAD_SIGMASK.
* modules/signal (Makefile.am): Substitute REPLACE_PTHREAD_SIGMASK.
* modules/pthread_sigmask (Depends-on, configure.ac): Update condition.
(Link): Set to $(LIB_PTHREAD_SIGMASK), not $(LIBMULTITHREAD).
Bruno Haible [Fri, 8 Jul 2011 00:08:15 +0000 (02:08 +0200)]
pthread_sigmask: Make declaration C++ safe.
* lib/signal.in.h: In two special conditions, just do an #include_next.
(pthread_sigmask): Test HAVE_PTHREAD_SIGMASK, not REPLACE_PTHREAD_MASK.
Invoke _GL_CXXALIAS_SYS and _GL_CXXALIASWARN.
* m4/signal_h.m4 (gl_SIGNAL_H_DEFAULTS): Initialize
HAVE_PTHREAD_SIGMASK, not REPLACE_PTHREAD_MASK.
* m4/pthread_sigmask.m4 (gl_PTHREAD_SIGMASK): Set HAVE_PTHREAD_SIGMASK,
not REPLACE_PTHREAD_MASK.
* modules/signal (Makefile.am): Substitute HAVE_PTHREAD_SIGMASK,
not REPLACE_PTHREAD_MASK.
* modules/pthread_sigmask (Depends-on, configure.ac): Update condition.
Eric Blake [Thu, 7 Jul 2011 17:02:23 +0000 (11:02 -0600)]
getopt: avoid compiler warning during configure
Some compilers (or warning settings within a compiler) rightfully
complain about assigning a string literal to a char *, since this
can lead to undefined behavior if those characters are modified.
Use the same casts as in the test file to avoid a spurious rejection
of a system getopt merely because of warnings.
* m4/getopt.m4 (gl_GETOPT_CHECK_HEADRS): Avoid problems with
assigning string literals to non-const pointer.