bug#22900: new snapshot available: gzip-1.6.42-d6d4

[Jim Meyering]

It has been over 2.5 years since the release of gzip-1.6,
so we're a bit overdue. I would like to make the 1.7
release in the next couple of weeks, so any testing
you can do with this snapshot would be most welcome.

Tarballs:
=======================
gzip snapshot:
  http://meyering.net/gzip/gzip-ss.tar.xz      744 KB
  http://meyering.net/gzip/gzip-ss.tar.xz.sig
  http://meyering.net/gzip/gzip-1.6.42-d6d4.tar.xz

Here are the current NEWS entries:
===============================
** Changes in behavior

  The GZIP environment variable is now obsolescent; gzip now warns if
  it is used, and rejects attempts to use dangerous options or operands.
  You can use an alias or script instead.

** New features

  gzip now accepts the --synchronous option, which causes it to use
  fsync and similar primitives to transfer output data to the output
  file's storage device when the file system supports this.  Although
  this option makes gzip safer in the presence of system crashes, it
  can make gzip considerably slower.

  gzip now accepts the --rsyncable option. This option is accepted in
  all modes, but has effect only when compressing: it makes the resulting
  output more amenable to efficient use of rsync.  For example, when a
  large input file gets a small change, a gzip --rsyncable image of
  that file will remain largely unchanged, too.  Without --rsyncable,
  even a tiny change in the input could result in a totally different
  gzip-compressed output file.

** Bug fixes

  gzip -k -v no longer reports that files are replaced.
  [bug present since the beginning]

Detailed changes, by committer:
===========================
Changes in gzip since v1.6:

Jason Leschnik (1):
      doc: correct a diagnostic in man page to match actual

Jim Meyering (17):
      maint: post-release administrivia
      maint: update gnulib to latest and adapt streamsavedir usage
      maint: update copyright year range in gzip.texi
      maint: udpate all copyright notices via "make update-copyright"
      gnulib+bootstrap: update to latest
      maint: avoid false positive match in check for double semicolon
      maint: enable more syntax checks
      maint: move new NEWS entry into block for upcoming release
      maint: update copyright year ranges to include 2015; update gnulib
      gnulib: update to latest
      maint: ensure that --version's copyright date is current
      maint: remove dead code
      build: avoid -Wshift-negative-value warning
      maint: adjust copyright notices in *.in files to be consistent
      maint: avoid three warnings from the very latest gcc-built-from-git
      maint: update copyright year, bootstrap, init.sh
      maint: dist-check.mk: remove .deps dirs before comparing

Paul Eggert (23):
      maint: port to platforms lacking SIGPIPE
      doc: zgrep exit status, unsupported options
      tests: zgrep-context assumes grep knows context
      gzip: port util.c to Compaq C V6.5-303
      zgrep: usage should say which grep options are not supported
      tests: zgrep-signal race condition fix
      Fix spelling typo in newly-added comment.
      znew: avoid denial-of-service issue
      gzip: fix permissions issue on Solaris-like systems
      zless: improve gzip failure checking, and port to new -V format
      maint: update .gitignore files
      doc: use UTF-8 in the manual
      zgrep: exit with status 0 if a file matches and there's no trouble
      gzip: fix --suffix=z bug (Bug#18239)
      tests: use local dir for output
      gzip: adjust -v output when -k is also specified
      maint: adjust to recent gnulib
      gzip: make the GZIP env var obsolescent
      fsync output file before closing
      gzip: fdatasync output dir before unlinking
      gzip: use constants, not fileno
      gzip: new option --synchronous
      misc: update --version copyright

Rusty Russell (1):
      gzip: support the --rsyncable option

Changes in gnulib since v1.6:

* gnulib 9be0b54...271dfe3 (763):
  > autoupdate
  > tests: for compare_(), use cmp -s where available
  > version-etc: new year
  > human: fix output buffer overrun by 1
  > autoupdate
  > maint: add missing ChangeLog entry for previous commit
  > maint: fix operator precedence in mbrtowc test
  > autoupdate
  > regexprops-generic: update from regex.h
  > strftime-tests: avoid false failure on OS X
  > update from texinfo
  > fts: ensure leaf optimization is used for NFS
  > fts: enable leaf optimization for XFS
  > non-recursive-gnulib-prefix-hack: preserve V_GPERF lines
  > intprops: comment fix
  > update from texinfo
  > intprops-test: work around GCC bug 68971
  > autoupdate
  > gnulib-tool: allow multiple --local-dir usage
  > fix freadptr to work with ungetc on all uClibc configs
  > update from texinfo
  > autoupdate
  > parse-datetime: relax license to LGPLv2+, for OSTree
  > update from texinfo
  > autoupdate
  > autoupdate
  > update from texinfo
  > xalloc-oversized: improve performance with GCC 5
  > intprops: new public macro EXPR_SIGNED
  > intprops: fix typo in clang port
  > test-timespec: fix typo in previous change
  > timespec-sub: fix overflow bug; add tests
  > intprops-test: suppress -Woverlength-strings
  > maint: add missing ChangeLog entry for previous commit
  > quotearg: add quotearg_n_style_colon()
  > intprops: revise _WRAPV macros, revert _OVERFLOW
  > intprops: add parentheses for when OP has precedence lower than "-"
  > quotearg: constify get_quoting_style parameters
  > quotearg: add support for $'' shell escaping
  > maint: use a more standard return from mbrtowc test
  > intprops: add WRAPV and const flavors for GCC 5
  > doc: use extended timezone format in iso-8601 example
  > update from texinfo
  > update from texinfo
  > update from texinfo
  > stdalign: port to Sun C 5.9
  > autoupdate
  > update from texinfo
  > autoupdate
  > time_rz: fix comment about tzalloc
  > update from texinfo
  > stdalign: work around pre-4.9 GCC x86 bug
  > maint.mk: sc_tight_scope: remove extraneous expressions
  > time_rz: return NULL if localtime_r fails
  > fts: port to C11 alignof
  > time_rz: avoid warning from bleeding-edge gcc's -Wnonnull
  > maint.mk: _gl_TS_function_match: fix "extern" name extracting regexp
  > maint.mk: sc_tight_scope: factor and support OS X
  > ChangeLog: fix typo: s/cound/count/
  > safe-alloc-tests: fix typo in license header
  > copy-file: fix mem leak in error case
  > localename: control langinfo.h inclusion
  > update from texinfo
  > binary-io, math, pthread, sys_socket, u64, unistd: port to strict C
  > accept4-tests: fix to avoid non portable flags
  > update from texinfo
  > update from texinfo
  > gnulib-tool: fix tests of 'extensions' module
  > unicase/locale-language: fix typo in utf-8 cookie
  > autoupdate
  > xalloc: do not worry about GCC 5 warning on 32 bit
  > xalloc: avoid GCC 5.1 warning on 32 bit
  > uniname/uniname-tests: avoid compiler warnings
  > autoupdate
  > mountlist: clean up of variable duplication
  > c-ctype: do not worry about EBCDIC + char signed
  > c-ctype: port better to z/OS EBCDIC
  > gnulib-common.m4: fix gl_PROG_AR_RANLIB/AM_PROG_AR clash
  > sockets: MS Windows initalization fixes
  > gc: fix detection of installed libgcrypt version
  > c-ctype: rewrite to use inline functions
  > fnmatch: add one more coding cookie
  > maint: add coding cookies to non-ASCII sources
  > gitlog-to-changelog: trim only trailing whitespaces
  > Test that c_iscntrl agrees with iscntrl, etc.
  > c-ctype: improve c_isascii testing
  > Fix ChangeLog typo
  > savewd: remove SAVEWD_CHDIR_READABLE
  > Update ChangeLog to match previous patch.
  > c-ctype: support EBCDIC-style c_isascii
  > c-ctype: assume EBCDIC 1047 for c_iscntrl
  > * modules/c-ctype (Depends-on): Add verify.
  > c-ctype: port better to EBCDIC
  > nanosleep: fix return code for interrupted replacement
  > autoupdate
  > Diagnose ERE '()|\1'
  > Revert previous patch, as it did not fix the bug after all.
  > regex: fix dangling-backreference bug
  > regex: merge patches from libc
  > autoupdate
  > autoupdate
  > autoupdate
  > autoupdate
  > ceill: detect buggy OpenBSD implementation
  > mountlist: add me_mntroot field on Linux machines
  > doc: Describe to use multiple instances of gnulib
  > autoupdate
  > autoupdate
  > base32: mark function as __attribute__ const
  > autoupdate
  > autoupdate
  > gnulib-tool: don't transform binary files with sed
  > autoupdate
  > autoupdate
  > autoupdate
  > autoupdate
  > gperf: respect silent rules
  > Improve port of stdalign to C++11
  > pmccabe2html: fix gawk regex escaping
  > update from texinfo
  > time_rz: port to pedantic memcpy
  > autoupdate
  > time_rz: port better to MinGW
  > time: port __need_time_t to MinGW
  > strftime: fix newly-introduced bug on Solaris
  > test-strftime: test for Solaris bug
  > time_rz: port to Solaris etc.
  > time_rz: now LGPL
  > time_rz: make a constant 'const'
  > time_rz: fix off-by-one typo
  > autoupdate
  > fprintftime, strftime: use timezone_t args
  > time_rz: new module
  > flexmember: license is now unlimited
  > autoupdate
  > maint: update copyright paper procedures
  > autoupdate
  > autoupdate
  > localename: fix link error on Illumos
  > unistr/uN-strtok-tests: avoid a trivial leak
  > acl-permissions: Document FreeBSD ACL_TYPE_NFS4 acls
  > acl-permissions: Fix on FreeBSD
  > file-has-acl, acl-permissions: fix some more HP-UX typos
  > file-has-acl, acl-permissions: fix HP-UX typos
  > regex: match current GNU grep behavior
  > set-permissions.c: adjust acl_from_mode's cpp guard
  > autoupdate
  > tests: restrict shells to those that support 'local'
  > fix mistakes in ChangeLog entries
  > unistr/uN-strtok: handle multibyte delimiters
  > update-copyright: fix test failure with perl >= 5.22
  > u{16,32}-strstr-tests: relax timeout condition
  > gnulib-common.m4: change the ARFLAGS default to 'cr'
  > update from texinfo
  > autoupdate
  > selinux-h: avoid double free after *getfilecon()
  > fix pty related tests issues on Windows
  > acl: fix definition of acl_from_mode on FreeBSD
  > readutmp: port to FreeBSD >= 9
  > mgetgroups: port to strict OS X
  > mgetgroups: fix port to strict OS X
  > linkat: fix invalid definition of LINKAT_SYMLINK_NOTSUP on OS X
  > mgetgroups: port to strict OS X
  > mountlist: avoid an unused-label warning on OS X
  > error.c: correct printf-style format: %d -> %u
  > fts: avoid reading beyond the heap allocation
  > savedir: avoid undefined behavior in qsort call
  > userspec: avoid undefined behavior in gettext call
  > update from texinfo
  > gitlog-to-changelog: improve gitmerge.el commits
  > wchar: fix MinGW compilation warnings
  > uniname/uniname-tests: use pristine data files
  > linked-list, linkedhash-list: avoid compiler warnings
  > libunistring: bump minimum version to 0.9.6
  > uniname/uniname: update to Unicode 8.0.0
  > * lib/gen-uni-tables.c: Style fixes.
  > libunistring: update to Unicode 8.0.0
  > gnu-web-doc-update: add --mirror to remove stale files
  > * lib/set-permissions.c: Spelling fix.
  > update from texinfo
  > acl-permissions: pacify -Wsuggest-attribute=const
  > fsync: document AIX misbehavior
  > acl-permissions: more porting to AIX
  > stdio: Don't redefine gets when using C++
  > acl-permissions: add a cast to port to older AIX
  > acl-permissions: port to older AIX, C89 HP-UX
  > update from texinfo
  > vasprintf-posix: avoid compiling vasnprintf where possible
  > file-has-acl: fix build on Mac OS X 10
  > prefix-gnulib-mk: remove no longer needed special case
  > acl: don't depend on the deprecated qacl module
  > gnulib-tool: concatenate lib_SOURCES to a single line
  > pthread_sigmask: discount system version if a simple macro
  > readlinkat: avoid OS X 10.10 trailing slash bug
  > acl-permissions: Fix build on Mac OS X and older AIX (Bug#20681)
  > acl-permissions: Fix build on Solaris and Cygwin
  > linkat: avoid OS X 10.10 trailing slash with symlink bug
  > unlinkat: handle ignoring of ".." on Darwin 14
  > qacl: split into qcopy-acl and qset-acl
  > gitlog-to-changelog: new option --ignore-line
  > qacl: Reimplement qset_acl and qcopy_acl (Bug#20666)
  > file-has-acl: Split feature tests again (Bug#20667)
  > string: fix build failure on BSD/OSX with FORTIFY_SOURCE
  > stdio: limit __gnu_printf__ witness to gcc 4.4+
  > error: use correct printf attributes on mingw
  > update from texinfo
  > inttypes: force correct mingw PRIdMAX even without <stdio.h>
  > stdio: fix probe on mingw under gcc 5.1
  > autoupdate
  > gitlog-to-changelog: parse "Tiny-change"
  > update from texinfo
  > doc: document glibc posix_fallocate() issues
  > gendocs.sh: document new htmlarg default
  > extern-inline: no need for workaround in GCC 5.1
  > update from texinfo
  > eealloc, pagealign_alloc, xalloc: avoid clang warnings
  > tests: pacify GCC 5.1's stricter printf checking
  > fts: port to GCC 5.1 with --enable-gcc-warnings
  > file-has-acl: port to CentOS 6
  > file-has-acl: always return false when ACLs aren't supported
  > gettext: propagate po/Makefile.in.in too
  > file-has-acl: new module, split from acl
  > manywarnings: add GCC 5.1 warnings
  > autoupdate
  > doc: update FDL template to match FDL examples.
  > lstat: fix cross-compilation 'ln -s' problem
  > gendocs.sh: default to a common CSS style sheet for HTML output
  > gnulib-tool: output bold attribute more portably
  > qacl: Simplify HP-UX acl_nontrivial check
  > acl: On Linux, check for acls without libacl
  > acl, qacl: split off shared functions into separate object file
  > git-version-gen: revert "detect untagged revisions"
  > tempname: avoid unused parameter warnings
  > git-version-gen: detect untagged revisions
  > fseeko: fix build failure on NetBSD >= 6
  > gitlog-to-changelog: port to MS-Windows
  > gendocs: new option --tex for texi2dvi options
  > sync gettext .m4 files from gettext
  > uniname/uniname-tests: fix failure due to alias
  > hash: remove deprecated hash_insert0 function
  > mountlist: remove dependency on libmount
  > stddef: port to pre-C11 GCC on x86
  > quotearg-simple-tests: add missing gl_FUNC_MMAP_ANON dependency
  > yesno: make EOL optional in ENABLE_NLS case also
  > fdopendir-tests: test it does not close its arg
  > gitlog-to-changelog: trim trailing white space
  > gitlog-to-changelog: new option --ignore-matching
  > fdopendir: port better to MinGW
  > fdopendir: fix typo in comment
  > error: document all entry points provided
  > autoupdate
  > autoupdate
  > autoupdate
  > vasnprintf: pacify clang 3.5.0
  > glob, etc.: port to MSVC v18 on MS-Windows 8.1
  > poll: port to MSVC v18 on MS-Windows 8.1
  > tests: support stderr verification with returns_()
  > passfd: avoid valgrind uninitalised data warning
  > uniwbrk/u32-wordbreaks-tests: fix copyright
  > dup2: doc and test for Android bug
  > Replace dup2() on Android
  > Android doesn't define RLIM_SAVED_*
  > autoupdate
  > vasnprintf-posix-tests: use consistent test
  > printf, isinf, etc.: noncanonical != NaN
  > fts: remove redundant close() (trivial)
  > getdtablesize: port better for Android
  > poll: fixes for large fds
  > fcntl: Fix cross compiling
  > dup2, fcntl: cross-compiler better for Android
  > getopt: give accurate ambiguity diagnostic on mem exhaustion
  > getopt: don't crash on memory exhaustion
  > tempname: allow compilation with C++ (trivial)
  > dup2, fcntl: port to AIX
  > getdtablesize, dup2, fcntl: port to Android
  > localename: Implement gl_locale_name_thread_unsafe for Android
  > More changelog fixes
  > fts: avoid crash when a cycle is added while traversing
  > uniname/uniname: support character alias
  > Fix ChangeLog botches in my recent commits
  > duplocale: Fix Android build of duplocale-tests
  > signal_h: Fix Android build
  > net_if: Handle content-free <net/if.h> system headers
  > linkat_nofollow: Add fallback case for cross compiling
  > euidaccess: Fix Android build
  > getugroups: Fix Android build
  > localename: Fix Android build
  > getdtablesize: Fix Android build
  > Assume unbroken ungetc() on Android
  > Fix FILE struct compatibility with Android API level >= 21
  > tests: avoid recent -Werror=unused-variable regression in test-locale
  > maint: various whitespace cleanups in tempname
  > tests: provide returns_() to simplify exit status checking
  > mountlist: only use libmount when specified
  > uniname/unimame-tests: don't link with -lunistring
  > fstrcmp: don't assume strlen < INT_MAX
  > diffseq: prefer ptrdiff_t to ssize_t
  > xalloc: fix typo that suppressed warnings
  > full-read: fix license notice typo
  > crypto/gc: fix a -Wswitch warning
  > autoupdate
  > update from texinfo
  > tempname: new try_tempname function
  > gnulib-tool: fix handling of patch(1) diagnostics
  > bootstrap: exit immediately upon gnulib-tool failure
  > symlinkat: include all required header files
  > update from texinfo
  > update from texinfo
  > update from texinfo
  > localename: support Solaris 12 and illumos
  > locale: fix tests on illumos
  > unictype: avoid undefined left-shift behavior
  > libunistring: bump version of unitypes dependants
  > unictype/category-none: fix link with libunistring
  > unitypes: fix build with installed libunistring
  > time: port to MinGW32 3.21
  > update-copyright: apply to self
  > libunistring: update to Unicode 7.0.0
  > libunistring: update to Unicode 6.3.0
  > libunistring: update to Unicode 6.2.0
  > libunistring: update to Unicode 6.1.0
  > uniwbrk/u32-wordbreaks-tests: add conformance test
  > uniwbrk: ignore Extended/Format characters at BOL
  > test-strstr.c: avoid a trivial leak
  > update-copyright: recognize groff's \(co marker
  > maint.mk: fix compatibility with OS X nm
  > localcharset: improve charset detection on OS/2
  > count-leading-zeros: use 64-bit intrinsics on 32-bit Windows
  > count-leading-zeros: fix pragma typos
  > autoupdate
  > count-leading-zeros: avoid 64-bit intrinsics on 32-bit Windows
  > uniname/uniname: update to Unicode 7.0.0
  > doc: update INSTALL from autoconf
  > stdio: fix use of PRIdMAX on modern mingw
  > Fix check for pthreads.h pollution on Mingw64
  > lib-symbol-versions: cache script check
  > maint: fix grammar nits in propername
  > gendocs: Update bug-report address and URLs to Gnulib's.
  > gendocs: Add 'doc/gendocs_template_min'.
  > gendocs: Change maintainer.
  > gendocs: copyright date and version fix
  > derived INSTALL
  > revert copyright updates in slaved files
  > version-etc: new year
  > autoupdate
  > autoupdate
  > xstrtol: ensure errno is reset
  > utimens: fix dependency typo
  > autoupdate
  > docs: mention why libgen.h is bad
  > autoupdate
  > assure: new module
  > autoupdate
  > stdalign: port better to HP compilers
  > stdalign: work around Apple GCC 4.0 bug
  > gendocs.sh and templates now maintained in gnulib
  > getcwd: fix test failure on OS X 10.9
  > parse-datetime: avoid a compiler warning with byacc
  > unicase/locale-language-tests: fix LOCALE_FR test
  > autoupdate
  > update from texinfo
  > stddef: support C11's max_align_t
  > unistd: fix iOS check conditional
  > posixtm: avoid compiler warning in a better way
  > relocatable: support UNIXROOT in relocate() on EMX
  > freopen: workaround freopen() on OS/2 kLIBC
  > get_shared_library_fullname: port to EMX
  > find_executable: port to EMX
  > sched: check struct sched_param in spawn.h as well
  > support GNU format printf and scanf on mingw
  > bootstrap: Allow perl modules in $buildreq
  > apply _GL_ATTRIBUTE_PURE to some inline functions
  > vasnprintf: fix potential incorrect errno
  > vasnprintf: fix potential use after free
  > autoupdate
  > filevercmp, posixtm: avoid compiler warnings with -O3
  > Fix LDBL80_WORDS macro on big endian platforms.
  > autoupdate
  > git-version-gen: do not print new line characters
  > gnulib-tool: recognize x:* as an absolute path
  > argp: avoid extraneous translation and mem leak with empty pre doc
  > autoupdate
  > doc: mention that _BSD_SOURCE is deprecated for _DEFAULT_SOURCE
  > uniname/uniname-tests: skip if system's libunistring is used
  > printf: fix configure check on big endian systems
  > pipe-filter-gi, pipe-filter-ii: port to AIX
  > gitlog-to-changelog: add --until
  > update from texinfo
  > extern-inline: update commentary about GCC bugs
  > gen-uni-tables: untabify
  > gen-uni-tables: check out-of-range values added to 3-level tables
  > gen-uni-tables: utilize 'assert'
  > gen-uni-tables: cosmetic improvements
  > fcntl-h-tests: port to PA-RISC GNU/Linux
  > fts: port to C89
  > unistd: port to iOS
  > obstack: do not reject malloc-style obstack_chunkfun, obstack_freefun
  > autoupdate
  > update from texinfo
  > obstack: avoid potentially-nonportable function casts
  > obstack: fix macro return values
  > obstack: do not assume system-supplied obstack is size_t safe
  > obstack: port to platforms that #define __alignof__
  > linkat: don't unconditionally replace on GNU/Linux
  > linkat: wrap to handle symlinks on OS X 10.10
  > open, openat: document nonstandard FreeBSD, NetBSD O_NOFOLLOW errno
  > obstack: add NEWS entry for recent incompatible changes
  > mountlist: don't use libmount to decide on dummy/remote
  > maint: add missing ChangeLog entries for Modra's obstack changes
  > obstack: prefer __alignof__ to alignof
  > obstack: prefer alignof to calculating alignments by hand
  > obstack: use size_t alignments and check for overflow
  > obstack: 64-bit obstack support, part 3
  > obstack: 64-bit obstack support, part 2
  > obstack: 64-bit obstack support, part 1
  > obstack: tidy part 2
  > obstack: tidy part 1
  > socketlib, sockets, sys_socket: Use AC_REQUIRE to pacify autoconf.
  > iconv: avoid false detection of non-working iconv
  > bootstrap: print more diagnostics for missing programs
  > bootstrap: only update the gnulib submodule
  > symlinkat: port to AIX 7.1
  > readlinkat: port to AIX 7.1
  > remove spurious {
  > modules/fcntl: fix error reporting by dupfd
  > basename, dirname: Improve documentation.
  > exclude: declare exclude_patopts static
  > autoupdate
  > dirname: support compilation with C++
  > qsort_r: include <config.h>
  > avltree-list: avoid compiler warnings
  > qsort_r: new module, for GNU-style qsort_r
  > strerror_r-posix: support compilation with C++
  > fcntl-h: fix compilation with Intel C++ compiler
  > autoupdate
  > mountlist: use /proc/self/mountinfo when available
  > users.txt: add cmogstored
  > gnulib-tool: Sync with build-aux/bootstrap options
  > gnulib-tool: Fallback to wget when rsync fails
  > maintainer-makefile: add syntax check for useless ';;'
  > pthread, pthread_sigmask, threadlib: port to Ubuntu 14.04
  > error: drop spurious semicolon
  > gnulib-common.m4: port to GCC 4.2.1 and Sun Studio 12 C++
  > manywarnings: add GCC 4.9 warnings
  > vasnprintf: fix bugs in width computation
  > vasnprintf: Avoid signed/unsigned comparison warning.
  > parse-datetime: Avoid signed/unsigned comparison warning
  > qsort_r: new module, for GNU-style qsort_r
  > vla: new module
  > localename: make gl_locale_name_thread really thread-safe on Windows
  > getpass: don't assume struct termios
  > getdtablesize: fall back on sysconf (_SC_OPEN_MAX)
  > vararrays: modernize AC_C_VARARRAYS for C11
  > relocatable-prog-wrapper: port gettext to OS X 10.8 + GCC 4.8.1
  > sys_select: fix FD_ZERO problem on Solaris 10
  > accept: document Solaris 10 type glitch
  > extern-inline: port to FreeBSD, DragonFly
  > autoupdate
  > Use consistent style to check DEBUG macro in regex_internal.c
  > openat-die: use _Noreturn markup
  > test-open: port to cygwin, which lacks Fortify
  > localename: Enforce declarations before statements.
  > test-userspec: don't look up numeric user names
  > localcharset, localename: MS-Windows support for non-default locales
  > announce-gen: avoid failure when Digest::SHA is installed
  > gettext: revert "update macros to version 0.19"
  > regex: don't deref NULL upon heap allocation failure
  > maint.mk: give projects more flexibilty in set_prog_name arguments
  > regex: fix memory leak in compiler
  > announce-gen: avoid perl warnings
  > localename: avoid -Wsuggest-attribute={const,pure} warnings
  > nl_langinfo: Fix last change.
  > Define macros for glibc
  > Sync up error.c with glibc
  > nl_langinfo: fix build under mingw
  > mountlist: do not classify a bind-mounted dir entry as "dummy"
  > maint.mk: less syntax-check noise when SIGPIPE is ignored
  > nl_langinfo: CODESET on MS-Windows and more items from localeconv
  > Bruno Haible has stepped down as maintainer.
  > mktime: merge #if/#ifdef usage from glibc
  > git-version-gen: improve option descriptions
  > regex: fix memory leak in compiler
  > regex: merge patch from libc
  > acl: port to gcc -Wredundant-decls
  > parse-duration: eliminate 68-year duration limit
  > pthread: don't assume AC_CANONICAL_HOST, port better to Solaris, etc.
  > pthread: define thread-safe macros on some platforms
  > regex: don't be multithreaded if USE_UNLOCKED_IO.
  > gettext: update macros to version 0.19
  > select,poll: fix console handle check on windows 8
  > select: fix waiting on anonymous pipes on MS-Windows
  > times: fix to return non constant value on MS-Windows
  > isatty: fix to work on windows 8
  > maint: fix typo in fdl.texi
  > mountlist: avoid hasmntopt const type warning on solaris
  > maintainer-makefile: delete obsolete code
  > maintainer-makefile: avoid spurious error messages
  > rename: avoid unused-but-set-variable compiler warning
  > maint: add ChangeLog entry missing in previous commit
  > rename: mark a label as potentially unused
  > gnulib-common.m4: Fix typo in _GL_UNUSED_LABEL.
  > acl: apply pure attribute to two functions
  > gnulib-common.m4: add _GL_UNUSED_LABEL
  > dup2, fcntl, fcntl-h: port to AIX 7.1
  > printf, config.rpath: Port to FreeBSD 10.
  > ftoastr: work around compiler bug in IBM xlc 12.1
  > valgrind-tests: fixed misleading help message
  > isfinite, isinf, isnan tests: fix for little-endian PowerPC
  > exclude-tests: port to AIX 7.1
  > pthread_sigmask, timer-time: use gl_THREADLIB only if needed
  > gnulib-tool: wget translations using --no-verbose rather than --quiet
  > gnulib-tool: adjust translation wget to avoid a https redirection
  > getlogin_r-tests: check return value rather than errno
  > getlogin_r-tests: fix various issues in recent change
  > fchdir: port 'open' and 'close' redefinitions to AIX 7.1
  > update from texinfo
  > xalloc: don't potentially generate invalid code for xmemdup calls
  > getlogin_r-tests: avoid false failure under sudo/ssh etc.
  > getlogin-tests: avoid false failure under cron
  > mbrtowc.m4: fix a comment typo
  > mbrlen, mbrtowc: fix bug with empty input
  > doc: document mbrtowc and mbrlen problem with empty input
  > doc: document exec* = spawn+exit bug with non-Cygwin Windows platforms
  > autoupdate
  > getlogin-tests: avoid false failure under sudo/ssh etc.
  > mbsstr, quotearg, xstrtol: pacify IRIX 6.5 cc
  > update from texinfo
  > autoupdate
  > autoupdate
  > autoupdate
  > gitlog-to-changelog: revert inclusion of git-log-fix file
  > maint.mk: Relax the copyright check to cater for non FSF projects
  > physmem: use sysinfo if _SC_PHYS_PAGES unavailable
  > exclude: port to strict C99
  > regex: do not depend on malloc-gnu
  > autoupdate
  > expl: avoid incorrect expl(small_value) on OpenBSD 5.4
  > xalloc: allow x2nrealloc (P, PN, S) where P && !*PN
  > fts: avoid unnecessary strlen calls
  > fts: avoid unnecessary strlen calls
  > fts: avoid unnecessary strlen calls
  > autoupdate
  > autoupdate
  > obstack: Remove ancient NeXTSTEP gcc support conditional
  > obstack: merge with glibc changes
  > strftime: wrap macros in "do {...} while(0)"
  > modechange: avoid memory leaks for invalid octal modes
  > autoupdate
  > gitlog-to-changelog: include a dummy git-log-fix file
  > autoupdate
  > update from texinfo
  > gitlog-to-changelog: also include the file, git-log-fix
  > autoupdate
  > regex: port to OS X 10.8.5 en_US.UTF-8 locale
  > maint: fix ChangeLog to match commit record
  > stdint, read-file: fix missing SIZE_MAX on Android (tiny change)
  > parse-datetime: fix crash or infloop in TZ="" parsing
  > * NEWS: Recent changes are not that important.
  > savedir: new symbol for fast-read version
  > unistd: port readlink to Mac OS X 10.3.9
  > * NEWS: Document recent change to diffseq.
  > diffseq: remove TOO_EXPENSIVE heuristic
  > savedir: simplify by using stpcpy
  > spawn: fix link error on uclibc
  > m4: fix gl_TIMER_TIME() detection of threads on uClibc
  > maintainer-makefiles: provide AC_PROG_SED for older autoconf
  > exclude: add support for posix regexps
  > maintainer-makefiles: use $(SED) for syntax check
  > update from texinfo
  > savedir: add sorting arg to savedir, streamsavedir; remove fdsavedir
  > autoupdate
  > update from texinfo
  > update from texinfo
  > file-type: add support for doors and other less-common file types
  > update from texinfo
  > autoupdate
  > pthread: work around winpthread header pollution on mingw
  > qacl: check for fchmod
  > Fix typo in ChangeLog.
  > fdopen-tests: port to Tru64
  > stdalign: port to HP-UX compilers
  > strtoimax: port to platforms lacking 'long long'
  > update from texinfo
  > relocatable-maint.texi: escape braces
  > maint: remove duplicate ChangeLog entry
  > maint.mk: adapt openat.h-include-without-use test
  > relocatable-perl: like relocatable-script, but for Perl scripts
  > relocatable-shell: Update suggested usage in maintainer documentation.
  > tests: fix export bug in previous patch
  > tests: simplify porting to Solaris 10 /bin/sh
  > update from texinfo
  > md5, sha1, sha256, sha512: support older autoconf
  > include_next: port to autoconf 2.63
  > maint: add a gnulib-local rule to keep non-ascii out of .texi files
  > freadable, fwritable, fwriting: declare with the "pure" attribute
  > maint.mk: adapt openat.h-include-without-use test
  > doc: use ASCII in .texi files where UTF-8 isn't needed
  > freading: declare with attribute "pure"
  > manywarnings: remove -Wmudflap
  > autoupdate
  > relocatable-script: remove unused code
  > maint: fix public-submodule-commit to work with newer git
  > autoupdate
  > doc: update main copyright year
  > maint: update copyright
  > version-etc: new year
  > autoupdate
  > passfd: give nicer error for recvfd at eof
  > autoupdate
  > gettimeofday: port recent C++ fix to Emacs
  > gettimeofday: fix C++ crosscompilation
  > qacl: port to Windows better
  > md5, sha1, sha256, sha512: fix compile error in c++ mode
  > open-tests: fix build failure with -Werror=old-style-declaration
  > md5, sha1, sha256, sha512: fix link error with partial libcrypto
  > md5, sha1, sha256, sha512: add gl_SET_CRYPTO_CHECK_DEFAULT
  > md5, sha1, sha256, sha512: add 'auto', and a way to specify default
  > autoupdate
  > bootstrap: warn about BSD toolchain snafu
  > open-tests: port to glibc with _FORTIFY_SOURCE and -O1
  > autoupdate
  > obstack: Remove ancient NeXTSTEP gcc support conditional
  > obstack: merge with glibc changes
  > strftime: wrap macros in "do {...} while(0)"
  > modechange: avoid memory leaks for invalid octal modes
  > autoupdate
  > gitlog-to-changelog: include a dummy git-log-fix file
  > autoupdate
  > update from texinfo
  > gitlog-to-changelog: also include the file, git-log-fix
  > autoupdate
  > regex: port to OS X 10.8.5 en_US.UTF-8 locale
  > maint: fix ChangeLog to match commit record
  > stdint, read-file: fix missing SIZE_MAX on Android (tiny change)
  > parse-datetime: fix crash or infloop in TZ="" parsing
  > * NEWS: Recent changes are not that important.
  > savedir: new symbol for fast-read version
  > unistd: port readlink to Mac OS X 10.3.9
  > * NEWS: Document recent change to diffseq.
  > diffseq: remove TOO_EXPENSIVE heuristic
  > savedir: simplify by using stpcpy
  > spawn: fix link error on uclibc
  > m4: fix gl_TIMER_TIME() detection of threads on uClibc
  > maintainer-makefiles: provide AC_PROG_SED for older autoconf
  > exclude: add support for posix regexps
  > maintainer-makefiles: use $(SED) for syntax check
  > update from texinfo
  > savedir: add sorting arg to savedir, streamsavedir; remove fdsavedir
  > autoupdate
  > update from texinfo
  > update from texinfo
  > file-type: add support for doors and other less-common file types
  > update from texinfo
  > autoupdate
  > pthread: work around winpthread header pollution on mingw
  > qacl: check for fchmod
  > Fix typo in ChangeLog.
  > fdopen-tests: port to Tru64
  > stdalign: port to HP-UX compilers
  > strtoimax: port to platforms lacking 'long long'
  > update from texinfo
  > relocatable-maint.texi: escape braces
  > maint: remove duplicate ChangeLog entry
  > maint.mk: adapt openat.h-include-without-use test
  > relocatable-perl: like relocatable-script, but for Perl scripts
  > relocatable-shell: Update suggested usage in maintainer documentation.
  > tests: fix export bug in previous patch
  > tests: simplify porting to Solaris 10 /bin/sh
  > update from texinfo
  > md5, sha1, sha256, sha512: support older autoconf
  > include_next: port to autoconf 2.63
  > maint: add a gnulib-local rule to keep non-ascii out of .texi files
  > freadable, fwritable, fwriting: declare with the "pure" attribute
  > maint.mk: adapt openat.h-include-without-use test
  > doc: use ASCII in .texi files where UTF-8 isn't needed
  > freading: declare with attribute "pure"
  > manywarnings: remove -Wmudflap
  > autoupdate
  > relocatable-script: remove unused code
  > maint: fix public-submodule-commit to work with newer git
  > autoupdate
  > doc: update main copyright year
  > maint: update copyright
  > version-etc: new year
  > autoupdate
  > passfd: give nicer error for recvfd at eof
  > autoupdate
  > gettimeofday: port recent C++ fix to Emacs
  > gettimeofday: fix C++ crosscompilation
  > qacl: port to Windows better
  > md5, sha1, sha256, sha512: fix compile error in c++ mode
  > open-tests: fix build failure with -Werror=old-style-declaration
  > md5, sha1, sha256, sha512: fix link error with partial libcrypto
  > md5, sha1, sha256, sha512: add gl_SET_CRYPTO_CHECK_DEFAULT
  > md5, sha1, sha256, sha512: add 'auto', and a way to specify default
  > autoupdate
  > bootstrap: warn about BSD toolchain snafu
  > open-tests: port to glibc with _FORTIFY_SOURCE and -O1
  > include_next: minimize code duplication
  > getcwd: fix compile error in configure check
  > regex: suppress core dumps from detection code
  > md5, sha1, sha256, sha512: support mandating use of openssl
  > test-xvasprintf: disable some -Wformat-security diagnostics
  > regex: avoid glibc deadlock during configure
  > md5, sha1, sha256, sha512: use openssl routines if available
  > base64: fix recent compilation regression on some compilers
  > autoupdate
  > autoupdate
  > ignore-value: revert previous code change
  > selinux-h: improve stub types and add more stub functions
  > ignore-value: prefer GCC version back through 2.0
  > pty: Activate the signature wrapper of forkpty.
  > maint: fix gendocs.sh permissions
  > autoupdate
  > quotearg: don't attempt to store 1 << 31 into an "int"
  > error: depend on stdio
  > doc: Improve wording in relocatable-maint.texi.
  > Fix indentation in previous patch.
  > * lib/getgroups.c (posix_getgroups, getgroups) [__APPLE__]:
  > base64: provide a fast path for encoding well sized buffers
  > extern-inline: port better to OS X 10.9
  > fpending: fix typo
  > fpending: fix regression on DragonFly BSD
  > hash: relax license to LGPLv2+, for libguestfs
  > intprops: port to Oracle Studio c99
  > obstack: pacify HP C
  > maint.mk: prefer gpgv2 over gpgv
  > isnan: port to VAX
  > gnulib-tool: protect against CDPATH
  > maint.mk: restore functionality removed by recent change
  > Revert "error: make the module depend on vfprintf-posix"
  > maint.mk: fix "release" target to build _version
  > maint.mk: get current gnulib revision correctly.
  > install-reloc: Support multi-binary installation.
  > selinux-h: really build without selinux when library is missing
  > regex: also remove dependency on HAVE_WCSCOLL
  > xfreopen: fix typo: s/frepoen/freopen/
  > regex: don't depend on wcscoll
  > error: add the printf attribute to a static function
  > error: make the module depend on vfprintf-posix
  > fpending, obstack, strerror-override: use pure+const function attrs
  > extern-inline: make safe for -Wundef usage
  > mkfifo-tests, etc.: allow HP-UX 11.11 bug
  > acl: allow cross-compilation to Gentoo
  > mgetgroups: remove dependency on realloc-gnu
  > regex-tests: port to HP-UX 11.11
  > verify: document some 'assume' pitfalls
  > strtoumax: fix another typo in previous commit
  > strtoumax: fix typo in previous commit.
  > strtoumax: port to Solaris 8
  > autoupdate
  > strtoimax, strtoumax: port to HP-UX 11.11
  > strtoimax: port to HP-UX 11.11
  > New module 'count-trailing-zeros'.
  > count-leading-zeros: port to MSC; support types wider than 64 bits
  > count-one-bits: port to MSC; support types wider than 64 bits
  > mountlist: fix resource leak with MOUNTED_INTERIX_STATVFS
  > tests: improve diagnostic when an assertion fails
  > verify: new macro 'assume'
  > autoupdate
  > dup2, dup3: work around another cygwin crasher
  > getdtablesize: work around cygwin issue
  > pmccabe2html: escaping of special characters
  > manywarnings: enable nicer gcc warning messages
  > timespec: use the new TIMESPEC_RESOLUTION in a few more places
  > warnings: port --enable-gcc-warnings to Solaris Studio 12.3
  > configmake: support new --runstatedir option
  > ctype, string: depend on extern-inline
  > userspec: support optional parameters to parse_user_spec()
  > timespec: new function make_timespec, and new constants
  > stdio: OS X port of putc_unlocked + extern inline
  > signal: OS X port of sigaddset etc. + extern inline
  > extern-inline: do not always suppress extern inline on OS X
  > extern-inline: document fixes for ctype and wctype macros
  > fflush, freadahead, fseeko: Fix for Android
  > pmccabe2html: fix portability issues
  > getgroups: statement without effect
  > autoupdate
  > update from texinfo
  > update from texinfo
  > glob: fix compilation
  > glob: fix build for platforms without __THROW
  > autoupdate
  > regex-quote: fix buffer access out of bounds
  > glob: avoid -Wattribute warnings on glibc
  > headers: check that _GL_INLINE_HEADER_BEGIN is defined
  > bootstrap: remove the --version requirement from ancillary tools
  > gc: support HMAC-SHA256 and HMAC-SHA512.
  > gettext: update to version 0.18.3.1
  > selinux-at: omit unnecessary include
  > autoupdate
  > d-ino: avoid false negative on symlink
  > update from texinfo
  > autoupdate
  > bootstrap: port to OpenBSD sed
  > warnings: minor optimization
  > warnings: check -Wfoo rather than -Wno-foo
  > accept doclicense option
  > accept doclicense option
  > xvasprintf-tests: port to GCC with hardening flags
  > fpending: port to recent Cygwin change to stdio_ext.h
  > no need for tendentious comment
  > regenerate
  > autoupdate
  > sys_time: port to OpenBSD
  > autoupdate
  > bootstrap: support checksum utils without a --status option
  > update from texinfo
  > Fix ChangeLog typo.
  > autoupdate
  > regex: port to non-glibc/lock-using systems
  > update from texinfo
  > autoupdate
  > localecharset: make locale_charset thread-safe on Mac OS X
  > gettext: update to version 0.18.3
  > autoupdate
  > bootstrap: use correct source when copying build-aux files
  > tmpdir: fix bug in VMS port
  > tmpdir: fix typo in previous change
  > * lib/tmpdir.c: Simplify code to add slash; no need for a loop.
  > tmpdir: port to VMS, to // != /, and to long dirs
  > regex: port to --with-included-regex --enable-gcc-warnings non-threaded
  > accept4, dup3, pipe2: port to Cygwin
  > mountlist: add support for deallocating returned list entries
  > stdalign, verify: port to FreeBSD 9.1, to C11, and to C++11
  > fnmatch: don't goto over declaration
  > pipe2: decouple from binary-io a bit
  > mgetgroups: relax license to LGPLv2+
  > xalloc-oversized: relax license to LGPLv2+
  > nproc: relax license to LGPLv2+
  > bootstrap: honor --no-git
  > update from texinfo
  > ignore-value: port to gcc -pedantic
  > extern-inline: port to gcc -std=c89
  > doc: document extern-inline
  > doc: chatter less
  > fflush, fseeko: port to musl cross-compiles
  > msvc-inval: port to mingw-w64
  > getcwd-lgpl: port to Tru64
  > autoupdate
  > tests: port large-fd POSIX spawn tests to OS X