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* NEWS: Record release date.

Removes extraneous parse-datetime.c generated during build

* src/stat.c (human_fstype): This file system is the user interface
for resource allocation in Intel's Resource Director Technology.

* doc/coreutils.texi (join invocation): s/preceeding/preceding/.

* src/local.mk [check-duplicate-no-install]: Depend on the
single-binary tr, or the system tr, as the edge case
where these are not available only result in the sanity
check being effectively ignored.

Switching to non-recursive makefiles broke the 'install-html' target:
The gettext plumbing requires an 'install-html' target in po/Makefile.
This was fixed in gettext v0.19.8.1-41-ge5a008a, but packages using
older gettext need to manually patch po/Makefile.in.in.
Reported (for 'sed') and suggested fix by Eric Blake in
https://bugs.gnu.org/25690 .

* bootstrap.conf (bootstrap_epilogue): Add 'install-{html,pdf,dvi,ps}'
  targets to po/Makefile.in.in (if needed).

* bootstrap.conf: s/4.13/6.1/ as versions previous to that
generated invalid html with interspersed <span> tags that
were visible to the user.  Version 6.1 is available for a
year now, and is available in most distros.

makeinfo issues the following:

  doc/coreutils.texi:6568: warning: @sc argument all uppercase,\
    thus no effect.

* doc/coreutils.texi (join invocation): Remove the @sc macro around
the all uppercase "GNU".

Fixes a test-lock failure on MacOS

* src/timeout.c (install_sigchld): A new function to
install the SIGCHLD handler using sigaction() rather
than signal(), because with the latter on solaris
the signal handler is reset to default and thus
sigsuspend() only returns for the first finished child.
Reported by Assaf Gordon.

* tests/misc/cut-huge-range.sh: Bump up the ulimit,
to avoid a false failure due hitting the previously
detected ulimit.
Reported by Assaf Gordon.

* src/libstdbuf.c: undef malloc so as libstdbuf is
not linked with gnulib, and anyway the replacement is
never needed since we never malloc(0).
Reported by Assaf Gordon.

* doc/coreutils.texi (join invocation): Expand section to
add examples and more details.
Suggested by Dan Jacobson in https://bugs.gnu.org/25870

* man/md5sum.x: Give a more direct warning againt the use
of this hash algorithm for security purposes.
* man/sha1sum.x: Likewise.
Suggested by Jim Meyering.

* src/expand-common (parse-tab-stops): Exit earlier upon overflow
so another warning isn't issued (on 32 bit) in add_tab_stop().
Flagged in https://hydra.nixos.org/build/49499970

* doc/coreutils.texi (sha1sum invocation): Given that a SHA-1
preimage attack has occurred as documented at http://shattered.io/,
document sha1sum as having the same limitations as md5sum.
(md5sum): Parameterize the warning for use in both cases.
* man/md5sum.x: Mention b2sum(1) as a more secure alternative.
* man/sha1sum.x: Give the same warning as done for md5sum(1).

* src/stty.c (sane_mode): Assert to inform the compiler
we know the pointer will be valid.

* doc/coreutils.texi (expand invocation): Document the feature.
(unexpand invocation): Likewise.
* src/expand-common.c (extend_size): A new global to use
when the last tab stop is prefixed by '/'.
(set_extend_size): A new function to validate and set
the new extend_size global.
(parse_tab_stops): Call set_extend_size() for '/' prefixes.
(finalize_tab_stops): Ensure a single specified '/' is
treated like a standard tabsize, but also ensure that
when '/' is specified with a single other entry that
we process as a list rather than a tab size.
(get_next_tab_stop): Use the tab size if set,
for items after the user specified tab position list.
* tests/misc/expand.pl: Add test cases
* NEWS: Mention the new feature.
Fixes http://bugs.gnu.org/25540

This comes from the latest gnulib.
Also handling of OMP_NUM_THREADS has been adjusted
to support comma separated values indicating a nesting level,
in which case the first value is taken.  Also OMP_NUM_THREADS=0
is now ignored instead of being treated as 1, to match
the behavior of libgomp.

* NEWS: Mention the OMP_THREAD_LIMIT improvement,
and OMP_NUM_THREADS now handling nested values.
* doc/coreutils.texi (nproc invocation): Describe OMP_THREAD_LIMIT
as a way to set the max value, with OMP_THREAD_LIMIT setting the min.
* tests/misc/nproc-override.sh: A new test to exercise the
updated gnulib code with all combinations of these OMP variables.
* tests/local.mk: Reference the new test.

* NEWS: Mention the avoidance of the gotcha with specifying
a hex constant like count=0x1000 etc. as that previously
was silently interpreted as 0.

* src/copy.c (set_process_security_ctx, set_file_security_ctx):
Export for use in cp.c.
* src/copy.h: Likewise.
* src/cp.c (make_dir_parents_private): Call the exported functions
to set the security context for new and updated directories.
* tests/cp/cp-a-selinux.sh: Add a test case.

Fixes http://bugs.gnu.org/25378

* .gitignore: placate sc_gitignore_redundant.
* po/POTFILES.in: placate sc_po_check.

Commit v8.26-38-g99deaff7 introduced this warning:

    MAKEINFO doc/coreutils.info
  ./doc/coreutils.texi:10268: \
    warning: `.' or `,' must follow @xref, not `@'.

* doc/coreutils.texi (readlink invocation): Add '.' after @xref macro.

* bootstrap.conf, src/base64.c, src/cat.c, src/cksum.c:
* src/head.c, src/md5sum.c, src/od.c, src/split.c, src/sum.c:
* src/tac.c, src/tail.c, src/tee.c, src/tr.c, src/wc.c:
Adjust to renaming of the xsetmode module to xbinary-io,
and of the xsetmode function to xset_binary_mode.

This fixes a bug noted by Eric Blake.  Code was using xfreopen to
change files to binary mode, but this fails for stdout when in
append mode.  Such code should use xsetmode instead.  This affects
only the port on platforms like MS-Windows which distiguish text
from binary I/O.
* bootstrap.conf (gnulib_modules):
Remove xfreopen and add xsetmode.  Sort.
* src/base64.c (main):
* src/cat.c (main):
* src/cksum.c (cksum):
* src/head.c (head_file, main):
* src/md5sum.c (digest_file):
* src/od.c (open_next_file):
* src/split.c (main):
* src/sum.c (bsd_sum_file, sysv_sum_file):
* src/tac.c (tac_file, main):
* src/tail.c (tail_file):
* src/tee.c (tee_files):
* src/tr.c (main):
* src/wc.c (wc_file): Use xsetmode, not xfreopen.

* src/force-link.h: Don't include headers already included by system.h
* src/force-link.c: Likewise.  Also include system.h and
explicitly mark extern functions as such.

If the file B already exists, commands like 'ln -f A B' and
'cp -fl A B' no longer remove B before creating the new link.
Instead, they arrange for the new link to replace B atomically.
This should fix a race condition reported by Mike Crowe (Bug#25680).
* NEWS, doc/coreutils.texi (cp invocation, ln invocation):
Document this.
* bootstrap.conf (gnulib_modules): Add symlinkat.
* src/copy.c, src/ln.c: Include force-link.h.
* src/copy.c (same_file_ok): It's also OK to remove a destination
symlink when creating symbolic links, or when the source and
destination are on the same file system and when creating hard links.
* src/copy.c (create_hard_link, copy_internal):
* src/ln.c (do_link):
Rewrite using force_linkat and force_symlinkat, to close a window
where the destination temporarily does not exist.
* src/cp.c (main): Do not set x.unlink_dest_before_opening
merely because we are in link-creation mode.
* src/force-link.c, src/force-link.h: New files.
* src/local.mk (copy_sources, src_ln_SOURCES): Add them.
* tests/cp/same-file.sh: Adjust test case to match fixed behavior.

The race is unlikely, as timeout(1) needs to receive a signal
in the few operations between waitpid() returning and exit().
Also the system needs to have reallocated the just released pid
in this time window.

Previously we never disabled the signal handler that sent
the termination signal to the "child" pid.  However once waitpid()
has reaped the child, the system is free to allocate that pid,
so we must ensure we don't process any further signals.

* build-aux/gen-lists-of-programs.sh: Build timeout(1) optionally...
* configure.ac: ...predicated on sigsuspend() being available.
* src/timeout.c (block_cleanup): A new function to ensure the
cleanup() handler is disabled after waitpid has returned.
(main): Use sigsuspend() to wait with cleanup() enabled but
disabled once it returns, and thus disabled for the waitpid() call.
(monitored_pid): Change to the more accurate pid_t.
* NEWS: Mention the fix.

Fixes http://bugs.gnu.org/25624

* doc/coreutils.texi (realpath invocation): Mention that realpath
is the preferred command for canonicalization.
(readlink invocation): Likewise.
* man/readlink.x: Likewise.

* src/tail.c (check_fspec): Only enable printing of the file header
if we've actually read some data and this is a new file.  Also
move printing of the file header to...
(dump_remainder): ...here, to allow printing only when data read.
* tests/tail-2/overlay-headers.sh: A new test for suspension
and resumption of tail.
* tests/local.mk: Reference the new test.
* NEWS: Mention the fix.
Fixes http://bugs.gnu.org/23539

* tests/tail-2/retry.sh: The replacement of the "missing" directory
is not atomic, and therefore tail(1) can take a different path,
especially if there is a delay between the rmdir(2) and creat(2).
This is noticeable for example with `make coverage` because in
that case the coverage files written by rmdir(1) on exit,
induce a significant delay thus triggering the issue.

* src/tail.c (recheck): Set f->ignore before we
use it to show the appropriate error.
* tests/tail-2/retry.sh: Ensure the "giving up" message
is not presented.

Remove old log files that have corresponding entries
in the source code repository.
This saves about 2.5MB uncompressed, 0.5M compressed.

* Makefile.am (gen-ChangeLog): Adjust to taking all
logs since a particular version (8.15 in this case).
Also mention in the truncated log where to get older entries.
(changelog_etc): Remove the no longer distributed files.
* build-aux/git-log-fix: Remove now unused entries.
* ChangeLog-200[5-8]: Delete.
* doc/ChangeLog-2007: Likewise.
* po/ChangeLog-2007: Likewise.
* old/*: Likewise.

* HACKING: s/make TEST=/make check TEST=/
The 'check' target was missing there since v8.20-57-geac397ef.

* src/copy.c (punch_hole): Work around an empty definition
of HAVE_FALLOCATE which leads to a build error of:
"error: #if with no expression"
That was triggered by the inclusion of <linux/fs.h> in
commit v8.25-68-g89e1fef9 with kernel-headers-2.6.18.
Reported by Nelson H. F. Beebe

* src/local.mk (cu_install_program): Replace @INSTALL_PROGRAM@
with @INSTALL@ when cross-compiling; missed in commit 477a1e8e.
Message-Id: <20170125163329.5690-1-manolis837@gmail.com>
Copyright-paperwork-exempt: Yes

* src/dircolors.hin: Match *.{wim,swm,dwn,esd}