Merge branch 'upstream' into stable

update from texinfo

dup2: work around Haiku bug

dup2(n,n) must be a no-op, but on Haiku, it resets FD_CLOEXEC.
However, we must keep the Linux workaround for dup2(n,n)
returning (unsigned int)-EBADF.

* m4/dup2.m4 (gl_FUNC_DUP2): Test for bug.
* lib/dup2.c (rpl_dup2) [!WIN32]: Add workaround.
* doc/posix-functions/dup2.texi (dup2): Document the bug.
* tests/test-dup2.c (main): Enhance test.

Signed-off-by: Eric Blake <eblake@redhat.com>

doc: off_t is not available in eglibc 2.11.2 stdio.h.

* doc/posix-headers/stdio.texi (stdio.h): Mention that off_t isn't
declared by eglibc 2.11.2.
* lib/stdio.in.h: Likewise.

ignore-value: add missing test dependency

This reverts commit 13f769497814bf636c5d2a98f1b17cbf0d088be9.

* tests/test-ignore-value.c: Revert previous change; stdio.h
provides off_t.
* modules/ignore-value-tests (Depends-on): Add missing dependency.

Signed-off-by: Eric Blake <eblake@redhat.com>

mktime: clarify long_int width checking

* lib/mktime.c (long_int_is_wide_enough): Move this assertion to
the top level, to make it clearer that the assumption about
long_int width is being checked.  See
<http://lists.gnu.org/archive/html/bug-gnulib/2011-01/msg00554.html>.

ignore-value: Fix self-test.

* tests/test-ignore-value.c: Include sys/types.h for off_t.

TYPE_MAXIMUM: avoid theoretically undefined behavior

* lib/intprops.h (TYPE_MINIMUM, TYPE_MAXIMUM): Do not shift a
negative number, which the C Standard says has undefined behavior.
In practice this is not a problem, but might as well do it by the book.
Reported by Rich Felker and Eric Blake; see
<http://lists.gnu.org/archive/html/bug-gnulib/2011-01/msg00493.html>.
* lib/strtol.c (TYPE_MINIMUM, TYPE_MAXIMUM): Likewise.
* m4/mktime.m4 (AC_FUNC_MKTIME): Likewise.
* m4/nanosleep.m4 (gl_FUNC_NANOSLEEP): Likewise.
* m4/parse-datetime.m4 (gl_PARSE_DATETIME): Likewise.
* m4/stdint.m4 (gl_STDINT_H): Likewise.
* lib/mktime.c (TYPE_MAXIMUM): Redo slightly to match the others.

mktime: #undef mktime before #defining it

* lib/mktime.c (mktime) [DEBUG]: #undef mktime before #defining it.

mktime: systematically normalize tm_isdst comparisons

* lib/mktime.c (isdst_differ): New function.
(__mktime_internal): Use it systematically for all isdst comparisons.
This completes the fix for libc BZ #6723, and removes the need for
normalizing tm_isdst.  See
<http://sourceware.org/bugzilla/show_bug.cgi?id=6723>
(not_equal_tm) [DEBUG]: Use isdst_differ here, too.

mktime: fix some integer overflow issues and sidestep the rest

This was prompted by a bug report by Benjamin Lindner for MinGW
<http://lists.gnu.org/archive/html/bug-gnulib/2011-01/msg00472.html>.
His bug is due to signed integer overflow (0 - INT_MIN), and I
I scanned through mktime.c looking for other integer overflow
problems, fixing all the bugs I found.

Although the C Standard says the resulting code is still not safe
in the presence of integer overflow, in practice it should be good
enough for all real-world two's-complement implementations, except
for debugging environments that deliberately trap on integer
overflow (e.g., gcc -ftrapv).

* lib/mktime.c (WRAPV): New macro.
(SHR): Also check that long_int and time_t shift right in the
usual way, before using the fast-but-unportable method.
(TYPE_ONES_COMPLEMENT, TYPE_SIGNED_MAGNITUDE): Remove, no longer
used.  The code already assumed two's complement, so there's
no need to test for alternatives.  All uses removed.
(TYPE_MAXIMUM): Don't rely here on overflow behavior not defined by
the C standard.  Problem reported by Rich Felker in
<http://lists.gnu.org/archive/html/bug-gnulib/2011-01/msg00488.html>.
(twos_complement_arithmetic): Also check long_int and time_t.
(time_t_avg, time_t_add_ok, time_t_int_add_ok): New functions.
(guess_time_tm, ranged_convert, __mktime_internal): Use them.
(__mktime_internal): Avoid integer overflow with unary subtraction
in two instances where -1 - X is an adequate replacement for -X,
since the calculations are approximate.

mktime: avoid infinite loop

* m4/mktime.m4 (AC_FUNC_MKTIME): Avoid overflow on possibly-signed
type; behavior is still undefined but portable to all known targets.
Reported by Rich Felker.

Signed-off-by: Eric Blake <eblake@redhat.com>

rename, unlink, same-inode: Relicense.

* modules/rename (License): Relax from LGPLv3+ to LGPLv2+.
* modules/unlink (License): Likewise.
* modules/same-inode (License): Likewise.

mktime: avoid problems on NetBSD 5 / i386

* lib/mktime.c (long_int): New type.  This works around a problem
on NetBSD 5 / i386, where 'long int' and 'int' are both 32 bits
but time_t is 64 bits, and where I expect the existing code is
wrong in some cases.
(leapyear, ydhms_diff, guess_time_tm, __mktime_internal): Use it.
(ydhms_diff): Bring back the compile-time check for wide-enough
year and yday.

autoupdate

mktime: fix misspelling in comment

* lib/mktime.c (__mktime_internal): Fix misspelling in comment.
This merges all recent glibc changes of importance.

move-if-change: cope with concurrent mv of identical file.

* build-aux/move-if-change (CMPPROG): Accept environment
variable as an override for `cmp'.
(usage): Document CMPPROG.
Adjust comparison to drop stdout.  Cope with failure of mv if
the target file exists and is identical to the source, for
parallel builds.
Report from H.J. Lu against binutils in PR binutils/12283.

Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>

users.txt: Mention sharutils.

doc: Update users.txt

* users.txt: Mention OATH Toolkit.

Prepare for supporting FreeBSD 10.

* build-aux/config.libpath: Remove handling of freebsd1*.

Prepare for supporting FreeBSD 10.

* build-aux/config.rpath: Remove handling of freebsd1* which soon would
match FreeBSD 10.0.

vma-iter, get-rusage-as: Add OpenBSD support.

* modules/vma-iter (configure.ac): Test for mquery.
* lib/vma-iter.h (VMA_ITERATE_SUPPORTED): Define also on OpenBSD.
* lib/vma-iter.c: Include <sys/mman.h>.
(vma_iterate): Add an implementation based on mquery().
* lib/resource-ext.h (get_rusage_as): Update comments.
* lib/get-rusage-as.c: Likewise.
* lib/get-rusage-data.c: Likewise.

more make vars for makeinfo

regen

fcntl: work around Haiku F_DUPFD bugs

* m4/fcntl.m4 (gl_FUNC_FCNTL): Also catch Haiku errno bug.
* lib/fcntl.c (rpl_fcntl) [F_DUPFD]: Work around Haiku losing
cloexec bit on duplication.
* doc/posix-functions/fcntl.texi (fcntl): Document the bug.

Signed-off-by: Eric Blake <eblake@redhat.com>

autoupdate

Enable memory leak tests on AIX.

* tests/test-dprintf-posix2.c (main): Don't skip the test on AIX.
* tests/test-fprintf-posix3.c (main): Likewise.

Tests for module 'get-rusage-data'.

* modules/get-rusage-data-tests: New file.
* tests/test-get-rusage-data.c: New file.

New module 'get-rusage-data'.

* lib/resource-ext.h (get_rusage_data): New declaration.
* lib/get-rusage-data.c: New file.
* modules/get-rusage-data: New file.

get-rusage-as: Allow for easier testing.

* lib/resource-ext.h (get_rusage_as): Add comment.
* lib/get-rusage-as.c (get_rusage_as_via_setrlimit): Define always.
(main): New function for interactive testing.

vma-iter: Treat Haiku like BeOS.

* lib/vma-iter.h (VMA_ITERATE_SUPPORTED): Define on Haiku as well.
* lib/vma-iter.c (vma_iterate) [Haiku]: Use the BeOS API.

c-stack: fix regression on cygwin when libsigsegv is present

* lib/c-stack.c (die): Don't flatten error if sigsegv is present.

Signed-off-by: Eric Blake <eblake@redhat.com>

autoupdate

vma-iter: Avoid empty intervals.

* lib/vma-iter.c (vma_iterate) [IRIX, OSF/1]: Don't call the callback
on an empty interval.

u64: remove unnecessary #include

* lib/u64.h: Don't include <stddef.h>.  It was not used.

Allow the user to avoid the GNULIB_TEST_* macros.

* m4/gnulib-common.m4 (gl_ASSERT_NO_GNULIB_POSIXCHECK): New macro.

New module 'vma-iter'.

* lib/vma-iter.h: New file.
* lib/vma-iter.c: New file, based on lib/get-rusage-as.c.
* modules/vma-iter: New file.
* lib/get-rusage-as.c: Include vma-iter.h. Don't include system headers
for get_rusage_as_via_iterator.
(vma_iterate_callback): New function.
(get_rusage_as_via_iterator): Rewritten to use vma_iterate.
* modules/get-rusage-as (Depends-on): Add vma-iter.

uninorm: Tweak includes.

* lib/uninorm/normalize-internal.h: Don't include <stddef.h>.
Reported by Jim Meyering.

get-rusage-as: Improve on NetBSD.

* lib/get-rusage-as.c (get_rusage_as_via_iterator): On NetBSD, use
/proc, like on FreeBSD.

xreadlink.h: remove unnecessary #include

* lib/xreadlink.h: Don't include <stddef.h>.  It was not used.

maint.mk: add syntax-check rule: detect unnecessary #include <stddef.h>

* top/maint.mk (sc_prohibit_stddef_without_use): New rule.

get-rusage-as: Fix bug.

* lib/get-rusage-as.c (get_rusage_as_via_setrlimit): Restore the
original limit when aborting the first loop.

wctype: Ensure valid C syntax.

* m4/wctype_h.m4 (gl_WCTYPE_H): Invoke gl_CHECK_NEXT_HEADERS
unconditionally, instead of gl_NEXT_HEADERS conditionally.

wctype: Ensure valid C syntax.

* m4/wctype_h.m4 (gl_WCTYPE_H): Invoke gl_CHECK_NEXT_HEADERS
unconditionally, instead of gl_NEXT_HEADERS conditionally.

getopt: omit HAVE_OPTRESET, HAVE_GETOPT_CLIP from config.h

* m4/getopt.m4 (gl_GETOPT_CHECK_HEADERS): Do not put the
symbols HAVE_OPTRESET and HAVE_GETOPT_CLIP into config.h,
as they are needed only for configure's test case.
This removes two unnecessary symbols from config.h.

gl_CHECK_NEXT_HEADERS implies AC_CHECK_HEADERS_ONCE

* m4/include_next.m4 (gl_CHECK_HEXT_HEADERS): Document this.
* m4/getopt.m4 (gl_GETOPT_CHECK_HEADERS): Don't bother to invoke
AC_CHECK_HEADERS_ONCE on a header that we also invoke
gl_CHECK_NEXT_HEADERS on, since the latter invokes the former.
* m4/netdb_h.m4 (gl_HEADER_NETDB): Likewise.
* m4/pthread.m4 (gl_PTHREAD_CHECK): Likewise.
* m4/sched_h.m4 (gl_SCHED_H): Likewise.
* m4/search_h.m4 (gl_SEARCH_H): Likewise.
* m4/spawn_h.m4 (gl_SPAWN_H): Likewise.
* m4/sys_file_h.m4 (gl_HEADER_SYS_FILE_H): Likewise.
* m4/sys_select_h.m4 (gl_HEADER_SYS_SELECT): Likewise.
* m4/sys_times_h.m4 (gl_SYS_TIMES_H): Likewise.
* m4/sys_utsname_h.m4 (gl_SYS_UTSNAME_H): Likewise.
* m4/termios_h.m4 (gl_TERMIOS_H): Likewise.
* m4/unistd_h.m4 (gl_UNISTD_H): Likewise.
* m4/wchar_h.m4 (gl_WCHAR_H): Likewise.
* m4/wctype_h.m4 (gl_WCTYPE_H): Likewise.

maintainer-makefile: work with older git for submodule check

* top/maint.mk (public-submodule-commit): Rewrite to avoid
merge-base --independent, which Ubuntu 10.04 git 1.7.0.4 lacks.
Reported by Matthias Bolte.

Signed-off-by: Eric Blake <eblake@redhat.com>

bootstrap: minor portability fixes

* build-aux/bootstrap (me): Use $me instead of $0 in functions.
(usage): Omit leading capital and trailing . on help phrases, per
GNU Coding Standards.
(check_versions, top level): Prefix messages with script name.

Signed-off-by: Eric Blake <eblake@redhat.com>

bootstrap: support --no-git option

* build-aux/bootstrap: Add --no-git option, to be used when
--gnulib-srcdir points to the exact desired checkout.

Signed-off-by: Eric Blake <eblake@redhat.com>

strerror_r-posix: work with glibc 2.13

* lib/strerror_r.c (strerror_r): Fix return type.

Signed-off-by: Eric Blake <eblake@redhat.com>

uN_strstr: New unit tests.

* modules/unistr/u8-strstr-tests: New file.
* modules/unistr/u16-strstr-tests: New file.
* modules/unistr/u32-strstr-tests: New file.
* tests/unistr/test-u-strstr.h: New file, based on tests/test-strstr.c.
* tests/unistr/test-u8-strstr.c: New file.
* tests/unistr/test-u16-strstr.c: New file.
* tests/unistr/test-u32-strstr.c: New file.

Make uN_strstr functions O(n) worst-case.

* lib/unistr/u-strstr.h (FUNC): In the 8-bit case, use strstr. In the
16-bit and 32-bit unit cases, use the unibyte algorithm from
lib/mbsstr.c.
* lib/unistr/u8-strstr.c: Include <string.h>.
(UNIT_IS_UINT8_T): New macro.
* lib/unistr/u16-strstr.c: Include malloca.h and str-kmp.h.
(U_STRLEN, U_STRNLEN): New macros.
* lib/unistr/u32-strstr.c: Include malloca.h and str-kmp.h.
(U_STRLEN, U_STRNLEN): New macros.
* modules/unistr/u8-strstr (Depends-on): Add strstr.
(configure.ac): Update required libunistring version.
* modules/unistr/u16-strstr (Files): Add lib/str-kmp.h.
(Depends-on): Add unistr/u16-strlen, unistr/u16-strnlen, stdbool,
malloca.
(configure.ac): Update required libunistring version.
* modules/unistr/u32-strstr (Files): Add lib/str-kmp.h.
(Depends-on): Add unistr/u32-strlen, unistr/u32-strnlen, stdbool,
malloca.
(configure.ac): Update required libunistring version.

Prepare for faster uN_strstr functions.

* lib/str-kmp.h: Support definable UNITs.
(knuth_morris_pratt): Renamed from knuth_morris_pratt_unibyte. Add
needle_len argument.
* lib/mbsstr.c (mbsstr): Adjust for the changed str-kmp.h.
* lib/mbscasestr.c (mbscasestr): Likewise.

test-malloca: unset MALLOC_PERTURB_ to speed up test

* tests/test-malloca.c (main): Unset the environment variable
to greatly speed up the test.
* tests/init.sh: Don't say that MALLOC_PERTURB_ is cheap.
* modules/malloca-tests: Depend on unsetenv.

ignore-value: remove dependency on stdint

Since commit 939dedd9, 06-01-2011,
"ignore-value: support aggregate types"
we no longer need stdint (intptr_t).

* lib/ignore-value.h: Remove uneeded <stdint.h>.
* modules/ignore-value: Remove stdint dependency.

maint.mk: adjust variable name to be consistent with other gl_ vars

* top/maint.mk (gl_public_submodule_commit): Rename the variable
to be lower case.

ChangeLog: remove duplicate entry

Remove "bootstrap: avoid failure when there is no .gitmodules file"
Spotted by Bruno Haible.

maint.mk: make "check" depend on public-submodule-commit by default

* top/maint.mk (GL_PUBLIC_SUBMODULE_COMMIT): New overridable variable.

mbfile, mbiter: Complete change from 2008-12-21.

* m4/mbfile.m4 (gl_MBFILE): Don't require AC_FUNC_MBRTOWC.
* m4/mbiter.m4 (gl_MBITER): Likewise.

update from texinfo

update from texinfo

init.sh: insert space between each function name and "()"

* tests/init.sh: Make it a little easier to see that a function's
name is "warn_", and not "warn" when looking at the first part of
its definition: "warn_ ()".  Suggested by Ralf Wildenhues.

bootstrap: avoid failure when there is no .gitmodules file

": ${gnulib_path=gnulib}" fails to set $gnulib_path when that variable
has been assigned to, even when its value is the empty string.
* build-aux/bootstrap (gnulib_path): Test explicitly for an empty
"$gnulib_path", rather than using ${gnulib_path=gnulib}.
Reported by John W. Eaton <jwe@gnu.org>.

update from texinfo

mountlist: clean up code formatting

* lib/mountlist.c (read_file_system_list): Split a long line,
correct bracing style, use NULL in place of "(struct statfs *)0",
don't parenthesize return value, add spaces around "=" and after
";-in-for-stmt".

mountlist: add support for Interix

* lib/mountlist.c (read_file_system_list) [MOUNTED_INTERIX_STATVFS]:
Apply statvfs to all entries of /dev/fs.
* m4/ls-mntd-fs.m4 (gl_LIST_MOUNTED_FILE_SYSTEMS): Check for statvfs,
and if found, AC_DEFINE MOUNTED_INTERIX_STATVFS.

maint.mk: improve the public-submodule-commit rule

* top/maint.mk (public-submodule-commit): Prefix with $(AM_V_GEN),
to suppress printing of its commands... unless V=1.
Add git submodule's --quiet option to suppress printing of e.g.,
"Entering gnulib" output.
"cd" into $(srcdir) before running git submodule.

include_next: Fix bug introduced on 2011-01-18.

* m4/include_next.m4 (gl_NEXT_HEADERS_INTERNAL): New macro, extracted
from gl_CHECK_NEXT_HEADERS and gl_NEXT_HEADERS. Omit test of
ac_cv_header_... variable if the second argument is not 'check'.
(gl_CHECK_NEXT_HEADERS, gl_NEXT_HEADERS): Invoke
gl_NEXT_HEADERS_INTERNAL.

Allow the user to avoid the GNULIB_TEST_* macros.

* m4/gnulib-common.m4 (gl_ASSERT_NO_GNULIB_TESTS): New macro.
Suggested by Paul Eggert.

bootstrap: avoid failure when there is no .gitmodules file

": ${gnulib_path=gnulib}" fails to set $gnulib_path when that variable
has been assigned to, even when its value is the empty string.
* build-aux/bootstrap (gnulib_path): Test explicitly for an empty
"$gnulib_path", rather than using ${gnulib_path=gnulib}.
Reported by John W. Eaton <jwe@gnu.org>.

assume <ctype.h>, ..., <time.h> exist

For years gnulib has been assuming the existence of the headers
<ctime.h>, <errno.h>, <fcntl.h>, <locale.h>, <signal.h>,
<stdio.h>, <stdlib.h>, <string.h>, and <time.h>.  Omit checks for
them, since they don't appear to be needed.
* README (Portability guidelines): Document this.
* lib/flock.c: Assume <fcntl.h> exists.
* lib/regex_internal.h: Assume <locale.h> exists.
* m4/ctype.m4 (gl_CTYPE_H): Assume <ctype.h> exists.
* m4/errno_h.m4 (gl_HEADER_ERRNO_H): Assume <errno.h> exists.
* m4/fcntl_h.m4 (gl_FCNTL_H): Assume <fcntl.h> exists.
* m4/flock.m4 (gl_PREREQ_FLOCK): Likewise.
* m4/locale_h.m4 (gl_LOCALE_H): Assume <locale.h> exists.
* m4/regex.m4 (gl_REGEX): Likewise.
* m4/signal_h.m4 (gl_SIGNAL_H): Assume <signal.h> exists.
* m4/stdio_h.m4 (gl_STDIO_H): Assume <stdio.h> exists.
* m4/stdlib_h.m4 (gl_STDLIB_H): Assume <stdlib.h> exists.
* m4/string_h.m4 (gl_STRING_H): Assume <string.h> exists.
* tests/test-argp.c: Likewise.
* m4/time_h.m4 (gl_HEADER_TIME_H_BODY): Assume <time.h> exists.

multiarch: remove AA_APPLE_UNIVERSAL_BUILD

* m4/multiarch.m4 (gl_MULTIARCH): Don't AC_DEFINE
AA_APPLE_UNIVERSAL_BUILD.  See
<http://lists.gnu.org/archive/html/bug-gnulib/2011-01/msg00247.html>.
* NEWS: Document this.

c-stack: assume stack overflow if SA_SIGINFO unsupported

* lib/c-stack.c (SIGACTION_WORKS): Rename...
(SIGINFO_WORKS): ...since gnulib module guarantees that (most) of
sigaction will work.
(die): Assume stack overflow if siginfo doesn't work, to let Haiku
behavior match Linux.
* tests/test-c-stack.c (main): Prefer NULL for pointers.

Signed-off-by: Eric Blake <eblake@redhat.com>

stdbool-tests: accomodate Haiku

* tests/test-stdbool.c: Haiku's gcc 2.95 lacks native _Bool.

Signed-off-by: Eric Blake <eblake@redhat.com>

binary-io: fix O_TEXT on Haiku

* modules/binary-io (Depends-on): Add fcntl-h.
* lib/binary-io.h (O_TEXT): Rely on replacement <fcntl.h> rather
than blindly undefining O_TEXT.
Reported by Scott McCreary.

Signed-off-by: Eric Blake <eblake@redhat.com>

include_next: do not check for standard headers like stddef.h

I found this problem when modifying Emacs to use gnulib.
I noticed that it added HAVE_STDDEF_H to config.h, even though
gnulib always assumes <stddef.h> exists as per README and this
symbol is unnecessary.
* m4/include_next.m4 (gl_NEXT_HEADERS): New macro, which does not
use AC_CHECK_HEADERS_ONCE, but which otherwise contains what
gl_CHECK_NEXT_HEADERS used to contain.  This makes 'configure' run
faster for headers like stddef.h that are known to exist.
(gl_CHECK_NEXT_HEADERS): Use it.
* m4/float_h.m4 (gl_FLOAT_H): For float.h, use gl_NEXT_HEADERS
rather than gl_CHECK_NEXT_HEADERS.
* m4/stdarg.m4 (gl_STDARG_H): Likewise, for stdarg.h.
* m4/stddef_h.m4 (gl_STDDEF_H): Likewise, for stddef.h.

ansi-c++-opt: skip C++ dependency style if C++ is unused

* m4/ansi-c++.m4 (gl_PROG_ANSI_CXX): Avoid full-blown dependency
tests when we know C++ compilation is not desired.
Reported by Scott McCreary.

Signed-off-by: Eric Blake <eblake@redhat.com>

*printf-posix: Avoid test failures. Make tests work on MacOS X, Cygwin.

* tests/test-fprintf-posix3.c: Include "resource-ext.h".
(main): Perform test also when getrlimit and setrlimit don't exist or
when setrlimit of RLIMIT_DATA fails (like on Cygwin). Instead of
limiting the address space size using setrlimit, compare the address
space size before and after the the test.
* tests/test-dprintf-posix2.c: Likewise.
* tests/test-fprintf-posix3.sh: Update skip messages.
* tests/test-dprintf-posix2.sh: Likewise.
* modules/fprintf-posix-tests (Depends-on): Add get-rusage-as.
* modules/dprintf-posix-tests (Depends-on): Likewise.
Reported by Bruce Korb <bkorb@gnu.org> and
Gary V. Vaughan <gary@gnu.org>.

get-rusage-as: Improvement for Cygwin.

* lib/get-rusage-as.c (get_rusage_as_via_iterator): On Windows, ignore
areas that are merely reserved.

strftime: remove dependencies on multibyte modules

strftime depended on mbrlen, mbsinit, and wchar, but these modules
are needed only if ! MULTIBYTE_IS_FORMAT_SAFE, and that is true
only if __osf__ is defined, and I suspect OSF doesn't need these
other modules.  If my guess is wrong, we'll need to come up with a
variant of strftime that doesn't need the multibyte modules.

I discovered this problem when attempting modify Emacs to use the
strftime module.  With the previous gnulib, this caused Emacs to
need 31 new files, ranging from lib/config.charset to
m4/wint_t.m4.  This was overkill and I expect would be offputting
to the Emacs maintainers.  After this change, only 6 new files are
needed, namely strftime.[ch], srtftime.m4, stdbool.in.h,
stdbool.m4, and tm_gmtoff.m4.

* lib/strftime.c (MULTIBYTE_IS_FORMAT_SAFE): Define to 1 always.
Suggested by Bruno Haible in
<http://lists.gnu.org/archive/html/bug-gnulib/2011-01/msg00238.html>.
* m4/strftime.m4 (gl_FUNC_STRFTIME): Do not require AC_TYPE_MBSTATE_T,
and do not check for wchar.h.
* modules/strftime (Files): Remove m4/mbstate_t.m4.
(Depends-on): Remove mbrlen, mbsinit, wchar.

Tests for module 'get-rusage-as'.

* modules/get-rusage-as-tests: New file.
* tests/test-get-rusage-as.c: New file.

New module 'get-rusage-as'.

* modules/get-rusage-as: New file.
* lib/resource-ext.h: New file.
* lib/get-rusage-as.c: New file.

sigaction: relax license from LGPLv3+ to LGPLv2+

* modules/sigaction (License): Relax to LGPLv2+.

Signed-off-by: Eric Blake <eblake@redhat.com>

update from texinfo

autoupdate

filemode: Make function declarations usable in C++ mode.

* lib/filemode.h: Enclose function declarations in extern "C" block.
Reported by John W. Eaton <jwe@gnu.org>.

save-cwd: no longer include "xgetcwd.h"

* lib/save-cwd.c: Don't include "xgetcwd.h"; it's no longer used.
This avoids a compilation failure in projects that use save-cwd
without also using the xgetcwd module.

ftoastr: split into 3 modules ftoastr, dtoastr, ldtoastr

This is so that a program like Emacs, which needs only dtoastr,
does not have to bother with distributing and compiling ftoastr
and ldtoastr.
* MODULES.html.sh: Document these modules (ftoastr wasn't documented).
* modules/dtoastr, modules/ldtoastr: New files.
* modules/ftoastr: Now works just for 'float'.
(Files): Remove lib/dtoastr.c, lib/ldtoastr.c.
(Makefile.am): Remove ftoastr.h (not needed and no effect),
dtoastr.c, ldtoastr.c.

save-cwd: remove #if-!HAVE_FCHDIR'd code; use the fchdir module

There is no need to work around the lack of the fchdir function,
since gnulib can now provide a replacement when required.
* lib/save-cwd.c: Remove #if !HAVE_FCHDIR...#endif code.
* modules/save-cwd (Depends-on): Add fchdir.

openat, save-cwd: avoid xmalloc

This removes a direct (but undocumented) dependency of openat on
xalloc, along with an indirect dependency via save-cwd.  It also
removes a dependency of save-cwd on xgetcwd, and thereby
indirectly on xalloc.  This change causes the openat substitute
to fall back on save_cwd when memory is tight, and for save_cwd to
fail instead of dying when memory is tight, but that's good enough.

* lib/openat-proc.c: Include stdlib.h (for malloc), not
xalloc.h (for xmalloc).
(openat_proc_name): Use malloc, not xmalloc.
* lib/save-cwd.c (save_cwd): Use getcwd, not xgetcwd.
* modules/save-cwd (Files): Depend on getcwd, not xgetcwd.

openat: Increase OPENAT_BUFFER_SIZE from 512 to at least 1024

This avoids heap allocation for file names whose lengths are in
the range 512..1023, with the upper bound increasing to at most
4031 depending on the platform's PATH_MAX.  (We do not want
pathmax.h here as it might supply a non-constant PATH_MAX.)
* lib/openat-priv.h (SAFER_ALLOCA_MAX, SAFER_ALLOCA): New macros.
Perhaps they should be moved to malloca.h?
(OPENAT_BUFFER_SIZE): Use them.

doc: Update users.txt.

* users.txt: Add recutils.

missing @item

document configmake in the manual instead of the source

Update to Unicode 6.0.0.

* lib/gen-uni-tables.c (symbolic_width): Fix bounds of planes.
(get_lbp): Update for Unicode 6.0.0.
* lib/uniwidth/width.c (nonspacing_table_data): Add U+065F,
U+0859..U+085B, U+093A, U+0956..U+0957, U+0F8D..U+0F8F, U+135D..U+135E,
U+1BE6, U+1BE8..U+1BE9, U+1BED, U+1BEF..U+1BF1, U+1DFC, U+2D7F,
U+11001, U+11038..U+11046. Remove U+06DE.
(uc_width): Fix bounds of planes.
* tests/uniwidth/test-uc_width2.sh: Same updates as in
lib/uniwidth/width.c.
* tests/unigbrk/GraphemeBreakTest.txt: Copied from Unicode 6.0.0, with
trailing whitespace removed.
* tests/uninorm/NormalizationTest.txt: Update from Unicode 6.0.0,
without comments, but with the original copyright notice.
* lib/unicase/cased.h: Regenerated for Unicode 6.0.0.
* lib/unicase/ignorable.h: Likewise.
* lib/unicase/tocasefold.h: Likewise.
* lib/unicase/tolower.h: Likewise.
* lib/unicase/totitle.h: Likewise.
* lib/unicase/toupper.h: Likewise.
* lib/unictype/bidi_of.h: Likewise.
* lib/unictype/blocks.h: Likewise.
* lib/unictype/categ_C.h: Likewise.
* lib/unictype/categ_Cn.h: Likewise.
* lib/unictype/categ_L.h: Likewise.
* lib/unictype/categ_Ll.h: Likewise.
* lib/unictype/categ_Lm.h: Likewise.
* lib/unictype/categ_Lo.h: Likewise.
* lib/unictype/categ_Lu.h: Likewise.
* lib/unictype/categ_M.h: Likewise.
* lib/unictype/categ_Mc.h: Likewise.
* lib/unictype/categ_Me.h: Likewise.
* lib/unictype/categ_Mn.h: Likewise.
* lib/unictype/categ_N.h: Likewise.
* lib/unictype/categ_Nd.h: Likewise.
* lib/unictype/categ_No.h: Likewise.
* lib/unictype/categ_P.h: Likewise.
* lib/unictype/categ_Po.h: Likewise.
* lib/unictype/categ_S.h: Likewise.
* lib/unictype/categ_Sc.h: Likewise.
* lib/unictype/categ_Sk.h: Likewise.
* lib/unictype/categ_Sm.h: Likewise.
* lib/unictype/categ_So.h: Likewise.
* lib/unictype/categ_of.h: Likewise.
* lib/unictype/combining.h: Likewise.
* lib/unictype/ctype_alnum.h: Likewise.
* lib/unictype/ctype_alpha.h: Likewise.
* lib/unictype/ctype_graph.h: Likewise.
* lib/unictype/ctype_lower.h: Likewise.
* lib/unictype/ctype_print.h: Likewise.
* lib/unictype/ctype_punct.h: Likewise.
* lib/unictype/ctype_upper.h: Likewise.
* lib/unictype/decdigit.h: Likewise.
* lib/unictype/digit.h: Likewise.
* lib/unictype/numeric.h: Likewise.
* lib/unictype/pr_alphabetic.h: Likewise.
* lib/unictype/pr_bidi_arabic_digit.h: Likewise.
* lib/unictype/pr_bidi_arabic_right_to_left.h: Likewise.
* lib/unictype/pr_bidi_boundary_neutral.h: Likewise.
* lib/unictype/pr_bidi_eur_num_terminator.h: Likewise.
* lib/unictype/pr_bidi_hebrew_right_to_left.h: Likewise.
* lib/unictype/pr_bidi_left_to_right.h: Likewise.
* lib/unictype/pr_bidi_non_spacing_mark.h: Likewise.
* lib/unictype/pr_bidi_other_neutral.h: Likewise.
* lib/unictype/pr_case_ignorable.h: Likewise.
* lib/unictype/pr_cased.h: Likewise.
* lib/unictype/pr_changes_when_casefolded.h: Likewise.
* lib/unictype/pr_changes_when_casemapped.h: Likewise.
* lib/unictype/pr_changes_when_lowercased.h: Likewise.
* lib/unictype/pr_changes_when_titlecased.h: Likewise.
* lib/unictype/pr_changes_when_uppercased.h: Likewise.
* lib/unictype/pr_combining.h: Likewise.
* lib/unictype/pr_composite.h: Likewise.
* lib/unictype/pr_currency_symbol.h: Likewise.
* lib/unictype/pr_decimal_digit.h: Likewise.
* lib/unictype/pr_deprecated.h: Likewise.
* lib/unictype/pr_format_control.h: Likewise.
* lib/unictype/pr_grapheme_base.h: Likewise.
* lib/unictype/pr_grapheme_extend.h: Likewise.
* lib/unictype/pr_grapheme_link.h: Likewise.
* lib/unictype/pr_id_continue.h: Likewise.
* lib/unictype/pr_id_start.h: Likewise.
* lib/unictype/pr_ideographic.h: Likewise.
* lib/unictype/pr_lowercase.h: Likewise.
* lib/unictype/pr_math.h: Likewise.
* lib/unictype/pr_numeric.h: Likewise.
* lib/unictype/pr_other_alphabetic.h: Likewise.
* lib/unictype/pr_other_id_continue.h: Likewise.
* lib/unictype/pr_other_math.h: Likewise.
* lib/unictype/pr_punctuation.h: Likewise.
* lib/unictype/pr_sentence_terminal.h: Likewise.
* lib/unictype/pr_terminal_punctuation.h: Likewise.
* lib/unictype/pr_unassigned_code_value.h: Likewise.
* lib/unictype/pr_unified_ideograph.h: Likewise.
* lib/unictype/pr_uppercase.h: Likewise.
* lib/unictype/pr_xid_continue.h: Likewise.
* lib/unictype/pr_xid_start.h: Likewise.
* lib/unictype/scripts.h: Likewise.
* lib/unictype/scripts_byname.gperf: Likewise.
* lib/unictype/sy_java_ident.h: Likewise.
* lib/unigbrk/gbrkprop.h: Likewise.
* lib/unilbrk/lbrkprop1.h: Likewise.
* lib/unilbrk/lbrkprop2.h: Likewise.
* lib/uninorm/decomposition-table2.h: Likewise.
* lib/uniwbrk/wbrkprop.h: Likewise.
* tests/unicase/test-cased.c: Likewise.
* tests/unicase/test-ignorable.c: Likewise.
* tests/unicase/test-uc_tolower.c: Likewise.
* tests/unicase/test-uc_totitle.c: Likewise.
* tests/unicase/test-uc_toupper.c: Likewise.
* tests/unictype/test-categ_C.c: Likewise.
* tests/unictype/test-categ_Cn.c: Likewise.
* tests/unictype/test-categ_L.c: Likewise.
* tests/unictype/test-categ_Ll.c: Likewise.
* tests/unictype/test-categ_Lm.c: Likewise.
* tests/unictype/test-categ_Lo.c: Likewise.
* tests/unictype/test-categ_Lu.c: Likewise.
* tests/unictype/test-categ_M.c: Likewise.
* tests/unictype/test-categ_Mc.c: Likewise.
* tests/unictype/test-categ_Me.c: Likewise.
* tests/unictype/test-categ_Mn.c: Likewise.
* tests/unictype/test-categ_N.c: Likewise.
* tests/unictype/test-categ_Nd.c: Likewise.
* tests/unictype/test-categ_No.c: Likewise.
* tests/unictype/test-categ_P.c: Likewise.
* tests/unictype/test-categ_Po.c: Likewise.
* tests/unictype/test-categ_S.c: Likewise.
* tests/unictype/test-categ_Sc.c: Likewise.
* tests/unictype/test-categ_Sk.c: Likewise.
* tests/unictype/test-categ_Sm.c: Likewise.
* tests/unictype/test-categ_So.c: Likewise.
* tests/unictype/test-ctype_alnum.c: Likewise.
* tests/unictype/test-ctype_alpha.c: Likewise.
* tests/unictype/test-ctype_graph.c: Likewise.
* tests/unictype/test-ctype_lower.c: Likewise.
* tests/unictype/test-ctype_print.c: Likewise.
* tests/unictype/test-ctype_punct.c: Likewise.
* tests/unictype/test-ctype_upper.c: Likewise.
* tests/unictype/test-decdigit.h: Likewise.
* tests/unictype/test-digit.h: Likewise.
* tests/unictype/test-numeric.h: Likewise.
* tests/unictype/test-pr_alphabetic.c: Likewise.
* tests/unictype/test-pr_bidi_arabic_digit.c: Likewise.
* tests/unictype/test-pr_bidi_arabic_right_to_left.c: Likewise.
* tests/unictype/test-pr_bidi_boundary_neutral.c: Likewise.
* tests/unictype/test-pr_bidi_eur_num_terminator.c: Likewise.
* tests/unictype/test-pr_bidi_hebrew_right_to_left.c: Likewise.
* tests/unictype/test-pr_bidi_left_to_right.c: Likewise.
* tests/unictype/test-pr_bidi_non_spacing_mark.c: Likewise.
* tests/unictype/test-pr_bidi_other_neutral.c: Likewise.
* tests/unictype/test-pr_case_ignorable.c: Likewise.
* tests/unictype/test-pr_cased.c: Likewise.
* tests/unictype/test-pr_changes_when_casefolded.c: Likewise.
* tests/unictype/test-pr_changes_when_casemapped.c: Likewise.
* tests/unictype/test-pr_changes_when_lowercased.c: Likewise.
* tests/unictype/test-pr_changes_when_titlecased.c: Likewise.
* tests/unictype/test-pr_changes_when_uppercased.c: Likewise.
* tests/unictype/test-pr_combining.c: Likewise.
* tests/unictype/test-pr_composite.c: Likewise.
* tests/unictype/test-pr_currency_symbol.c: Likewise.
* tests/unictype/test-pr_decimal_digit.c: Likewise.
* tests/unictype/test-pr_deprecated.c: Likewise.
* tests/unictype/test-pr_format_control.c: Likewise.
* tests/unictype/test-pr_grapheme_base.c: Likewise.
* tests/unictype/test-pr_grapheme_extend.c: Likewise.
* tests/unictype/test-pr_grapheme_link.c: Likewise.
* tests/unictype/test-pr_id_continue.c: Likewise.
* tests/unictype/test-pr_id_start.c: Likewise.
* tests/unictype/test-pr_ideographic.c: Likewise.
* tests/unictype/test-pr_lowercase.c: Likewise.
* tests/unictype/test-pr_math.c: Likewise.
* tests/unictype/test-pr_numeric.c: Likewise.
* tests/unictype/test-pr_other_alphabetic.c: Likewise.
* tests/unictype/test-pr_other_id_continue.c: Likewise.
* tests/unictype/test-pr_other_math.c: Likewise.
* tests/unictype/test-pr_punctuation.c: Likewise.
* tests/unictype/test-pr_sentence_terminal.c: Likewise.
* tests/unictype/test-pr_terminal_punctuation.c: Likewise.
* tests/unictype/test-pr_unassigned_code_value.c: Likewise.
* tests/unictype/test-pr_unified_ideograph.c: Likewise.
* tests/unictype/test-pr_uppercase.c: Likewise.
* tests/unictype/test-pr_xid_continue.c: Likewise.
* tests/unictype/test-pr_xid_start.c: Likewise.
* tests/unigbrk/test-uc-gbrk-prop.h: Likewise.
* lib/unicase/special-casing-table.gperf: Regenerated; only comment
changes.
* lib/unictype/categ_Cc.h: Likewise.
* lib/unictype/categ_Cf.h: Likewise.
* lib/unictype/categ_Co.h: Likewise.
* lib/unictype/categ_Cs.h: Likewise.
* lib/unictype/categ_Lt.h: Likewise.
* lib/unictype/categ_Nl.h: Likewise.
* lib/unictype/categ_Pc.h: Likewise.
* lib/unictype/categ_Pd.h: Likewise.
* lib/unictype/categ_Pe.h: Likewise.
* lib/unictype/categ_Pf.h: Likewise.
* lib/unictype/categ_Pi.h: Likewise.
* lib/unictype/categ_Ps.h: Likewise.
* lib/unictype/categ_Z.h: Likewise.
* lib/unictype/categ_Zl.h: Likewise.
* lib/unictype/categ_Zp.h: Likewise.
* lib/unictype/categ_Zs.h: Likewise.
* lib/unictype/ctype_blank.h: Likewise.
* lib/unictype/ctype_cntrl.h: Likewise.
* lib/unictype/ctype_digit.h: Likewise.
* lib/unictype/ctype_space.h: Likewise.
* lib/unictype/ctype_xdigit.h: Likewise.
* lib/unictype/mirror.h: Likewise.
* lib/unictype/pr_ascii_hex_digit.h: Likewise.
* lib/unictype/pr_bidi_block_separator.h: Likewise.
* lib/unictype/pr_bidi_common_separator.h: Likewise.
* lib/unictype/pr_bidi_control.h: Likewise.
* lib/unictype/pr_bidi_embedding_or_override.h: Likewise.
* lib/unictype/pr_bidi_eur_num_separator.h: Likewise.
* lib/unictype/pr_bidi_european_digit.h: Likewise.
* lib/unictype/pr_bidi_pdf.h: Likewise.
* lib/unictype/pr_bidi_segment_separator.h: Likewise.
* lib/unictype/pr_bidi_whitespace.h: Likewise.
* lib/unictype/pr_dash.h: Likewise.
* lib/unictype/pr_default_ignorable_code_point.h: Likewise.
* lib/unictype/pr_diacritic.h: Likewise.
* lib/unictype/pr_extender.h: Likewise.
* lib/unictype/pr_hex_digit.h: Likewise.
* lib/unictype/pr_hyphen.h: Likewise.
* lib/unictype/pr_ids_binary_operator.h: Likewise.
* lib/unictype/pr_ids_trinary_operator.h: Likewise.
* lib/unictype/pr_ignorable_control.h: Likewise.
* lib/unictype/pr_iso_control.h: Likewise.
* lib/unictype/pr_join_control.h: Likewise.
* lib/unictype/pr_left_of_pair.h: Likewise.
* lib/unictype/pr_line_separator.h: Likewise.
* lib/unictype/pr_logical_order_exception.h: Likewise.
* lib/unictype/pr_non_break.h: Likewise.
* lib/unictype/pr_not_a_character.h: Likewise.
* lib/unictype/pr_other_default_ignorable_code_point.h: Likewise.
* lib/unictype/pr_other_grapheme_extend.h: Likewise.
* lib/unictype/pr_other_id_start.h: Likewise.
* lib/unictype/pr_other_lowercase.h: Likewise.
* lib/unictype/pr_other_uppercase.h: Likewise.
* lib/unictype/pr_paired_punctuation.h: Likewise.
* lib/unictype/pr_paragraph_separator.h: Likewise.
* lib/unictype/pr_pattern_syntax.h: Likewise.
* lib/unictype/pr_pattern_white_space.h: Likewise.
* lib/unictype/pr_private_use.h: Likewise.
* lib/unictype/pr_quotation_mark.h: Likewise.
* lib/unictype/pr_radical.h: Likewise.
* lib/unictype/pr_soft_dotted.h: Likewise.
* lib/unictype/pr_space.h: Likewise.
* lib/unictype/pr_titlecase.h: Likewise.
* lib/unictype/pr_variation_selector.h: Likewise.
* lib/unictype/pr_white_space.h: Likewise.
* lib/unictype/pr_zero_width.h: Likewise.
* lib/unictype/sy_c_ident.h: Likewise.
* lib/unictype/sy_c_whitespace.h: Likewise.
* lib/unictype/sy_java_whitespace.h: Likewise.
* lib/uninorm/composition-table.gperf: Likewise.
* lib/uninorm/decomposition-table1.h: Likewise.
* tests/unilbrk/test-u8-possible-linebreaks.c (main): Add test for rule
LB8.
* tests/unilbrk/test-u16-possible-linebreaks.c (main): Likewise.
* tests/unilbrk/test-u32-possible-linebreaks.c (main): Likewise.
* modules/unictype/*: Bump version number of expected libunistring
version.

Update to Unicode 5.2.0.

* tests/unigbrk/GraphemeBreakTest.txt: Copied from Unicode 5.2.0, with
trailing whitespace removed.

New Unicode character properties, from Unicode 5.2.0.

* lib/unictype.in.h (UC_PROPERTY_CASED, UC_PROPERTY_CASE_IGNORABLE,
UC_PROPERTY_CHANGES_WHEN_LOWERCASED,
UC_PROPERTY_CHANGES_WHEN_UPPERCASED,
UC_PROPERTY_CHANGES_WHEN_TITLECASED,
UC_PROPERTY_CHANGES_WHEN_CASEFOLDED,
UC_PROPERTY_CHANGES_WHEN_CASEMAPPED,
uc_is_property_cased, uc_is_property_case_ignorable,
uc_is_property_changes_when_lowercased,
uc_is_property_changes_when_uppercased,
uc_is_property_changes_when_titlecased,
uc_is_property_changes_when_casefolded,
uc_is_property_changes_when_casemapped): New declarations.
* lib/unictype/pr_byname.gperf: Add the new properties.
* modules/unictype/property-byname (Depends-on): Depend on the new
properties modules.
* modules/unictype/property-all (Depends-on): Likewise.
* MODULES.html.sh (Unicode string functions): Add
unictype/property-case-ignorable, unictype/property-cased,
unictype/property-changes-when-casefolded,
unictype/property-changes-when-casemapped,
unictype/property-changes-when-lowercased,
unictype/property-changes-when-titlecased,
unictype/property-changes-when-uppercased.

New module 'unictype/property-changes-when-casemapped'.

* modules/unictype/property-changes-when-casemapped: New file.
* lib/unictype/pr_changes_when_casemapped.c: New file.
* lib/unictype/pr_changes_when_casemapped.h: New file, automatically
generated by gen-uni-tables.
* modules/unictype/property-changes-when-casemapped-tests: New file.
* tests/unictype/test-pr_changes_when_casemapped.c: New file,
automatically generated by gen-uni-tables.

New module 'unictype/property-changes-when-casefolded'.

* modules/unictype/property-changes-when-casefolded: New file.
* lib/unictype/pr_changes_when_casefolded.c: New file.
* lib/unictype/pr_changes_when_casefolded.h: New file, automatically
generated by gen-uni-tables.
* modules/unictype/property-changes-when-casefolded-tests: New file.
* tests/unictype/test-pr_changes_when_casefolded.c: New file,
automatically generated by gen-uni-tables.

New module 'unictype/property-changes-when-titlecased'.

* modules/unictype/property-changes-when-titlecased: New file.
* lib/unictype/pr_changes_when_titlecased.c: New file.
* lib/unictype/pr_changes_when_titlecased.h: New file, automatically
generated by gen-uni-tables.
* modules/unictype/property-changes-when-titlecased-tests: New file.
* tests/unictype/test-pr_changes_when_titlecased.c: New file,
automatically generated by gen-uni-tables.