+2018-12-29 Jim Meyering <meyering@fb.com>
+
+ version 1.10
+ * NEWS: Record release date.
+
+2018-12-23 Paul Eggert <eggert@cs.ucla.edu>
+
+ build: enable -Wunreachable-code
+ * configure.ac (nw): Remove -Wunreachable-code from the list of
+ disabled warnings, now that all offending statements have been removed.
+
+ maint: remove unreachable code
+ Problem reported by Oracle Developer Studio 12.6.
+ In the old days we needed a return statement at the end of
+ the gzip main function to pacify traditional 'lint', but
+ lint checkers nowadays are smarter.
+ * gzip.c (main):
+ * zip.c (file_read): Remove unreachable code.
+
+2018-12-23 Jim Meyering <meyering@fb.com>
+
+ maint: use a slightly cleaner expression
+ * gzip.c (do_list): Simplify an expression:
+ - int positive_off_t_width = INT_BUFSIZE_BOUND (off_t) - 2;
+ + int positive_off_t_width = INT_STRLEN_BOUND (off_t) - 1;
+
+2018-12-22 Jim Meyering <meyering@fb.com>
+
+ build: avoid build failure with --enable-gcc-warnings and latest gcc
+ * gzip.c (do_list): There was a loop to compute the maximum width
+ of a decimal positive off_t value. Replace it with assignment to a
+ constant. Noticed because gcc 9.0.0 20181219 warned about its use
+ as a printf format-width value.
+ (OFF_T_MAX): Remove now-unused definition.
+
+2018-12-21 Jim Meyering <meyering@fb.com>
+
+ maint: improve a comment
+ * trees.c (flush_block): Fix grammar/spelling in a comment.
+
+ maint: update gnulib to latest; also update bootstrap and init.sh
+
+ build: make the autoconf-2.63 requirement explicit
+ * configure.ac: AC_PREREQ: Require 2.63, not 2.59.
+ Autoconf-2.63 has been required for some time via gnulib.
+ This merely makes it explicit.
+
+2018-11-30 Paul Eggert <eggert@cs.ucla.edu>
+
+ gzip: fix use of uninitialized memory
+ Problem reported by Hanno Böck (Bug#33501).
+ * NEWS: Mention this.
+ * inflate.c (inflate_dynamic): Return if code is invalid.
+ Fix by Mark Adler.
+ * tests/hufts: Add test case for the bug.
+
+2018-08-19 Paul Eggert <eggert@cs.ucla.edu>
+
+ * gzip.c (remove_output_file): Fix typo.
+
+ gzip: fix bug in signal-handling fix
+ Problem reported by Johannes Przybilla (Bug#32375#26).
+ * gzip.c (volatile_strcpy): Source is now pointer-to-volatile too.
+ (remove_output_file): Copy remove_ofname to a private nonvolatile
+ copy so that it can be passed to xunlink safely.
+
+2018-08-06 Paul Eggert <eggert@cs.ucla.edu>
+
+ Fix some theoretical races in signal handling
+ Problem reported by Johannes Przybilla (Bug#32375).
+ * NEWS: Mention this.
+ * bootstrap.conf (gnulib_modules): Add sigaction.
+ * gzip.c (SA_NOCLDSTOP, sigprocmask, sigset_t)
+ (siginterrupt) [!SA_NOCLDSTOP]: Remove; Gnulib not supplies these.
+ (remove_ofname): New var.
+ (volatile_strcpy): New function.
+ (create_outfile): Use it.
+ (install_signal_handlers, abort_gzip_signal): Assume sigaction.
+ (remove_output_file): New arg SIGNALS_ALREADY_BLOCKED.
+ All uses changed. Avoid unnecessary (and racy) call
+ to sigprocmask if this new arg is set.
+ (abort_gzip_signal): Assume C89 or better for signal handler type.
+ * gzip.h (RETSIGTYPE): Remove.
+ * lib/.gitignore, m4/.gitignore:
+ Add files brought in by Gnulib sigaction module. Sort.
+
+2018-08-04 Paul Eggert <eggert@cs.ucla.edu>
+
+ gzip: port better to mingw again
+ Problem reported by Bdale Garbee (Bug#32305#8).
+ * gzip.c (do_chown): Use HAVE_FCHOWN || HAVE_CHOWN,
+ which is configured, instead of DO_CHOWN, which is not.
+
+2018-08-02 Paul Eggert <eggert@cs.ucla.edu>
+
+ gzip: make the output more reproducible
+ Problem reported by Bernhard M. Wiedemann (Bug#32342).
+ * NEWS: Mention this.
+ * doc/gzip.texi (Overview, Invoking gzip): Document this.
+ * gzip.c (get_input_size_and_time): New function,
+ which implements the change.
+ (treat_stdin, treat_file): Use it.
+ * tests/reproducible: New test.
+ * tests/Makefile.am (TESTS): Add it.
+
+2018-07-29 Paul Eggert <eggert@cs.ucla.edu>
+
+ gzip: port better to mingw
+ Problem reported by Bdale Garbee for Debian
+ * gzip.c (do_chown): Don't assume uid_t and gid_t.
+
+2018-07-01 Jim Meyering <meyering@fb.com>
+
+ maint: update gnulib to latest; also update bootstrap and init.sh
+
+2018-06-30 Jim Meyering <meyering@fb.com>
+
+ build: remove -Wformat-truncation=2 to avoid avoid false-positive
+ * configure.ac (GNULIB_WARN_CFLAGS): Add -Wformat-truncation=2,
+ to disable it when building gnulib with --enable-gcc-warnings.
+ This avoids what looks like a false positive from GCC 9:
+ strerror_r.c: In function 'rpl_strerror_r':
+ strerror_r.c:453:35: error: 'Unknown error ' directive output \
+ truncated writing 14 bytes into a region of size 2 \
+ [-Werror=format-truncation=]
+ snprintf (buf, buflen, "Unknown error %d", errnum);
+ ~~^~~~~~~~~~~~
+ In file included from /usr/include/stdio.h:862,
+ from ./stdio.h:43,
+ from strerror_r.c:29:
+ /usr/include/bits/stdio2.h:64:10: note: '__builtin___snprintf_chk' \
+ output between 16 and 26 bytes into a destination of size 2
+ return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
+
+2018-01-15 Paul Eggert <eggert@cs.ucla.edu>
+
+ misc: update --version copyright
+ * gunzip.in, gzexe.in, gzip.c, zcat.in, zdiff.in, zforce.in, zgrep.in:
+ * zless.in, zmore.in, znew.in:
+ Update copyright year in --version output to 2018.
+ This part of the year-number update isn’t automated yet.
+
+2018-01-07 Jim Meyering <meyering@fb.com>
+
+ maint: post-release administrivia
+ * NEWS: Add header line for next release.
+ * .prev-version: Record previous version.
+ * cfg.mk (old_NEWS_hash): Auto-update.
+
+ version 1.9
+ * NEWS: Record release date.
+
+2018-01-06 Paul Eggert <eggert@cs.ucla.edu>
+
+ gzexe: port to macOS mktemp
+ Problem reported by Jeffrey Walton (Bug#30000).
+ * gzexe.in, zdiff.in, zgrep.in:
+ Don’t assume that mktemp works when given no arguments,
+ as this is not true for macOS. Instead, use a syntax
+ that should work with coreutils, NetBSD, and macOS.
+ While we’re in the neighborhood, be more consistent about how program
+ names are used in temporary file names. Also, watch out for TMPDIR
+ values that are not absolute file names, since they can cause problems
+ (e.g., leading "-").
+
+2018-01-03 Jim Meyering <meyering@fb.com>
+
+ maint: update gnulib and copyright dates for 2018
+ * gnulib: Update to latest.
+ * bootstrap: Update from gnulib.
+ * all files: Run "make update-copyright".
+
+2017-12-16 Jim Meyering <meyering@fb.com>
+
+ build: update gnulib to latest
+
+2017-11-24 Paul Eggert <eggert@cs.ucla.edu>
+
+ maint: zforce and zmore exit status cleanup
+ Problem reported by Nelson H. F. Beebe.
+ * zforce.in, zmore.in: On failure, exit with status 1 instead of
+ with whatever failing status that printf or mv exited with.
+
+2017-11-23 Paul Eggert <eggert@cs.ucla.edu>
+
+ gzexe: ensure file always exists
+ * gzexe.in: When in a filesystem that does not support symlinks,
+ use rm+cp rather than mv to make backups, so that the argument
+ file always exists.
+
+2017-11-23 Jim Meyering <meyering@fb.com>
+
+ build: update gnulib to latest
+
+2017-11-16 Jim Meyering <meyering@fb.com>
+
+ gzexe: work even without the ability to make a hard link
+ * gzexe.in: When ln -f fails to create a "~"-style backup,
+ fall back to using mv -f.
+ Reported by Bruno Haible in http://debbugs.gnu.org/29266
+
+2017-11-15 Jim Meyering <meyering@fb.com>
+
+ build: make each generated script unwritable
+ * Makefile.am (.in): Ensure that each generated script is unwritable.
+ This makes it less likely that someone (even me) will mistakenly
+ modify one of those generated files.
+
+2017-11-13 Jim Meyering <meyering@fb.com>
+
+ zless, znew: exit 1 upon --help or --version write failure
+ * zless.in: Exit 1 upon --help or --version write error.
+ * znew.in: Likewise.
+
+2017-11-12 Paul Eggert <eggert@cs.ucla.edu>
+
+ maint: script diagnostics status cleanup
+ Problem reported by Bruno Haible (Bug#29266#20).
+ * NEWS: Mention this.
+ * gunzip.in, gzexe.in, zcat.in, zcmp.in, zdiff.in, zforce.in:
+ * zgrep.in, zless.in, zmore.in, znew.in:
+ Use printf instead of echo if the argument might contain ‘\’, at
+ least in theory. Don’t assume printf exits with status 1 on
+ failure; it might be some other positive status.
+ * gzexe.in: Use printf consistently instead of echo, and
+ proscribe it instead of echo.
+
+ tests: don’t be so strict about timestamps
+ * tests/timestamp: We’ve had many false alarms about timestamps
+ that are not gzip problems, but instead are problems with ‘touch’.
+ Attempt to work around them by not trusting ‘touch’ so much.
+ Problems and parts of solutions proposed by Bruno Haible.
+
+2017-11-10 Paul Eggert <eggert@cs.ucla.edu>
+
+ build: update gnulib submodule to latest
+
+2017-11-09 Jim Meyering <meyering@fb.com>
+
+ gnulib: update to latest
+
+ maint: use noreturn, not ATTRIBUTE_NORETURN
+ Use gnulib's stdnoreturn module so we can include
+ <stdnoreturn.h> and the "noreturn" helper macro, thus
+ replacing the definition and uses of ATTRIBUTE_NORETURN.
+ * bootstrap.conf (gnulib_modules): Add stdnoreturn.
+ * gzip.h (ATTRIBUTE_NORETURN): Remove definition.
+ Include stdnoreturn.h and use "noreturn" for each
+ ATTRIBUTE_NORETURN-adorned function declaration.
+ * gzip.c (do_exit, try_help): Use "noreturn".
+
+ tests: unpack-invalid: correct and clean up a test
+ * tests/unpack-invalid: There was a logic error that would have
+ caused this test to ignore a failure if first iteration of the
+ loop set fail=1 and the second one reset it to 0. Also, use
+ "returns_ 1 ...", to require an exit status of 1.
+
+2017-11-07 Paul Eggert <eggert@cs.ucla.edu>
+
+ gzip: diagnose out-of-range MTIME
+ This seems to be the problem reported by Bruno Haible for GNU/Hurd
+ i386 with touch 8.26 and glibc 2.24 (Bug#29033#20).
+ * NEWS: Document this.
+ * gzip.c (get_method): If MTIME is out of range for
+ this platform, warn and substitute the nearest in-range
+ value, instead of silently ignoring it.
+ (do_list): Remove no-longer-needed test for unknown time stamp.
+
+2017-11-06 Paul Eggert <eggert@cs.ucla.edu>
+
+ misc: diagnose year-2038 configuration problems
+ * bootstrap.conf (gnulib_modules): Add year2038.
+ * m4/.gitignore: Add year2038.m4[
+
+ maint: remove IMPORT_FROM_GETTEXT
+ * bootstrap.conf (IMPORT_FROM_GETTEXT): Remove.
+ This is a relic from older Gnulib, and has no effect now.
+
+2017-10-29 Jim Meyering <meyering@fb.com>
+
+ tests/unpack-valid: port to printf that do not grok hex
+ Many versions of printf do not handle hexadecimal in a format string,
+ so this test would fail.
+ * tests/init.cfg (hex_printf_): Copied from grep's tests/init.cfg.
+ * tests/unpack-valid: Use hex_printf_.
+ Reported by Bruno Haible in https://bugs.gnu.org/29033#26
+
+ gnulib: update to latest; also update tests/init.sh from gnulib
+
+ gzip: fix bug with any upper case custom ('-S'-specified) suffix
+ Any user-specified suffix with an upper case
+ letter would fail to match desired file.
+ * gzip.c (get_suffix): First, arrange to have only one return
+ point rather than two. Put a lower-cased (just-malloc'd) copy
+ of z_suffix in the suffix vector, and free it before returning.
+ * tests/upper-suffix: New file.
+ * tests/Makefile.am (TESTS): Add it.
+ * NEWS: Mention it.
+ Reported by meo@xenialab.it in https://bugs.gnu.org/29006
+
+2017-10-16 Paul Eggert <eggert@cs.ucla.edu>
+
+ gzip: fix bug in unpack EOB check
+ Problem reported by Vidar Holen (Bug#28861).
+ * NEWS: Mention fix.
+ * tests/unpack-valid: New test.
+ * tests/Makefile.am (TESTS): Add it.
+ * unpack.c (build_tree): Report an error if Huffman tree has
+ too few leaves.
+ * unpack.c (unpack): Fix check for EOB.
+ Remove now-unnecessary check for code out of range.
+
+2017-09-19 Jim Meyering <meyering@fb.com>
+
+ maint: fix "make syntax-check": remove useless HAVE_UTIME_H definitions
+ * tailor.h: Don't define HAVE_UTIME_H.
+
+ maint: avoid "make syntax-check" failure due to old-NEWS modification
+ * cfg.mk (old_NEWS_hash): Update, to reflect recent NEWS correction.
+
+2017-09-19 Paul Eggert <eggert@cs.ucla.edu>
+
+ gzexe: improve usage diagnostic
+ * gzexe.in (usage): Reword for clarity (Bug#28514).
+
+ misc: update --version copyright
+ * gunzip.in, gzexe.in, gzip.c, zcat.in, zdiff.in, zforce.in, zgrep.in:
+ * zless.in, zmore.in, znew.in: Update copyright year in --version
+ output to 2017.
+
+ maint: prefer HTTPS to HTTP, FTP in URLs
+
+ maint: copy bootstrap from Gnulib
+
+ maint: port to GCC 7.2
+ * configure.ac (WERROR_CFLAGS): Avoid -Wduplicated-branches.
+ * tailor.h (FALLTHROUGH): New macro, taken from Emacs.
+ * gzip.c (main): Use it.
+
+ maint: update .gitignore for recent Gnulib
+
+ build: update gnulib submodule to latest
+
+2017-05-07 Jim Meyering <meyering@fb.com>
+
+ maint: also distribute a zip-compressed tarball
+ * configure.ac (AM_INIT_AUTOMAKE): Add dist-zip, for
+ those lacking gzip, 7zip, etc. Suggested by Karl Berry in
+ https://bugs.gnu.org/25538.
+
+2017-03-13 Paul Eggert <eggert@cs.ucla.edu>
+
+ gzip: port zdiff, zless to Busybox
+ Problem reported by Denys Zagorui (Bug#26088).
+ * tests/zdiff: Check that diff uses POSIX-format output.
+ * zless.in (less_version): Don't exit merely because 'less -V'
+ fails; instead, assume 'less' is compatible with an old version of
+ the original 'less'. Busybox 'less -V' fails, but apparently its
+ 'less' works anyway somehow.
+
+2017-02-06 Jim Meyering <meyering@fb.com>
+
+ tests: avoid failure when running with no tty
+ * tests/help-version (zcat_setup): Export TERM=dumb, to avoid zless
+ malfunction. Reported by Assaf Gordon in https://bugs.gnu.org/25636#8
+
+ gnulib: update to latest; and tests/init.sh and bootstrap
+
+ maint: change "time stamp" to "timestamp" globally
+ This avoids a new syntax-check failure.
+ * ChangeLog-2007: Perform that change.
+ * NEWS: Likewise.
+ * algorithm.doc: Likewise.
+ * doc/gzip.texi: Likewise.
+ * gunzip.in: Likewise.
+ * gzip.1: Likewise.
+ * gzip.c: Likewise.
+ * gzip.h: Likewise.
+ * m4/.gitignore: Likewise.
+ * sample/ztouch: Likewise.
+ * tests/timestamp: Likewise.
+ * unzip.c: Likewise.
+ * zip.c: Likewise.
+ * znew.1: Likewise.
+ * cfg.mk: Update the old news hash accordingly.
+
+2017-01-01 Jim Meyering <meyering@fb.com>
+
+ maint: tweak a distcheck rule
+ * dist-check.mk (my-distcheck): Don't use --disable-nls.
+ That option is now unrecognized.
+
+ maint: update gnulib and copyright dates for 2017
+ * gnulib: Update to latest.
+ * all files: Run "make update-copyright".
+
+2016-11-08 Jim Meyering <meyering@fb.com>
+
+ maint: use "returns_" rather than explicit comparison with "$?"
+ * tests/zdiff: Use "returns_ 1" rather than testing $? = 1.
+ * tests/hufts: Likewise.
+ * tests/timestamp: Likewise, but s/1/2/.
+
+2016-11-04 Paul Eggert <eggert@cs.ucla.edu>
+
+ gzip: minor time stamp cleanups
+ * NEWS: Document this.
+ * gzip.c (get_method): Do not warn about MTIME out of range.
+ This should avoid useless chatter on hosts with 32-bit time_t
+ after the year 2038 (!).
+ (do_list): Do not pass junk time stamp to localtime.
+ (copy_stat): Do not report "time stamp restored" if restoration
+ fails.
+
+ gzip: --no-time cleanup
+ Problem reported by Jim Meyering (Bug#24826).
+ * gzip.c (longopts): Remove non-working no-time entry.
+ (help) [UNDOCUMENTED]: Don't document it.
+
+ gzip --no-name: avoid spurious warning
+ Problem reported by Jim Meyering (Bug#24826).
+ * tests/timestamp: Add a test from Jim Meyering to exercise the fix
+ * zip.c (zip): Treat unknown time stamps as 0.
+
+2016-10-24 Jim Meyering <meyering@fb.com>
+
+ maint: update .gitignore files to ignore more generated files
+
+2016-10-02 Jim Meyering <meyering@fb.com>
+
+ maint: avoid unwarranted "make syntax-check" failure
+ * tests/timestamp: Reorder "rm" arguments so the doubled-word
+ syntax-check rule does not detect a false positive "in in" here.
+
+ gnulib: update to latest
+
+2016-09-07 Paul Eggert <eggert@cs.ucla.edu>
+
+ * doc/gzip.texi: Fix off-by-one timestamp.
+
+2016-09-06 Paul Eggert <eggert@cs.ucla.edu>
+
+ gzip: fix some Y2038 etc. bugs
+ * NEWS: Document this.
+ * gzip.c (get_method): Warn about out-of-range MTIME,
+ and ignore it instead of relying on possibly-undefined behavior.
+ * tests/Makefile.am (TESTS): Add timestamp.
+ * tests/timestamp: New test.
+ * zip.c (zip): Warn about out-of-range file time stamp.
+
+2016-08-29 Jim Meyering <meyering@fb.com>
+
+ maint: fix gzip-specific syntax-check rule
+ * cfg.mk (sc_gzip_copyright_check): This rule had two problems.
+ It was failing erroneously (the copyright date in gzip.c is fine),
+ yet it was complaining. The first problem is that the rule's
+ diagnostic mentioned the wrong file: lib/version-etc.c, rather than
+ ./gzip.c. The second problem is that it specified this file name
+ via "in_files" rather than the "in_vc_files" variable.
+
+2016-06-12 Paul Eggert <eggert@penguin.cs.ucla.edu>
+
+ gzip: fix port to Atari by not defining ASMV
+ Problem reported by Helmut Karlowski in: http://bugs.gnu.org/23751
+ * tailor.h (ASMV) [ATARI || atarist]: Do not define.
+
+2016-06-12 Paul Eggert <eggert@cs.ucla.edu>
+
+ gzip: drop mentions of Amiga, VMS
+ These platforms were not supported anyway, and their code was
+ suffering from bitrot. This patch may also fix some file name
+ glitches on MS-Windowsish platforms.
+ * bootstrap.conf (gnulib_modules): Add dosname.
+ * gzip.c: Include dosname.h.
+ (shorten_name, treat_dir): Use last_component rather than looking
+ at path separators by hand.
+ * tailor.h: Remove sections on porting to VMS and to Amiga,
+ since dosname.h doesn't support these platforms anyway.
+ (PATH_SEP2, PATH_SEP3, STDC_HEADERS, SUFFIX_SEP, RECORD_IO)
+ (HAVE_CHOWN, HAVE_LSTAT, HAVE_SYS_DIR_H, direct): Remove. All
+ uses removed. Many uses replaced by calls to ISSLASH and/or
+ last_component.
+
+2016-04-29 Jim Meyering <meyering@fb.com>
+
+ maint: arrange for better URLs in generated announcement message
+ * cfg.mk (url_dir_list): Define. I had been correcting the generated
+ URLs by hand, just before the announcement. This is better.
+
+2016-04-26 Jim Meyering <meyering@fb.com>
+
+ maint: post-release administrivia
+ * NEWS: Add header line for next release.
+ * .prev-version: Record previous version.
+ * cfg.mk (old_NEWS_hash): Auto-update.
+
+ version 1.8
+ * NEWS: Record release date.
+
+ gnulib: update to latest
+
+2016-04-19 Paul Eggert <eggert@cs.ucla.edu>
+
+ gzip: simplify by closing ourselves
+ This simplifies the previous fix, by avoiding the use of the
+ closein module. That module was problematic, as gzip normally
+ does not use stdio for output and never uses it for input.
+ Also, it is a heavyweight module, as it drags many files into lib
+ (c-ctype.c, c-ctype.h, closein.c, closein.h, closeout.c, closeout.h,
+ close-stream.c, close-stream.h, config.charset, c-strcasecmp.c,
+ c-strcaseeq.h, c-strcase.h, c-strncasecmp.c, fpending.c, fpending.h,
+ freadahead.c, freadahead.h, localcharset.c, localcharset.h, mbrtowc.c,
+ mbsinit.c, quotearg.c, quotearg.h, quote.h, ref-add.sin, ref-del.sin,
+ streq.h, wctype-h.c, wctype.in.h) and into m4 (closein.m4, closeout.m4,
+ close-stream.m4, codeset.m4, configmake.m4, fpending.m4, freadahead.m4,
+ glibc21.m4, localcharset.m4, locale-fr.m4, locale-ja.m4, locale-zh.m4,
+ mbrtowc.m4, mbsinit.m4, mbstate_t.m4, quotearg.m4, wctype_h.m4),
+ and these files are thus no longer needed.
+ * bootstrap.conf (gnulib_modules): Remove closein.
+ * gzip.c: Don't include closein.h.
+ (stdin_was_read): New static var.
+ (main): Don't use close_stdin.
+ Invoke finish_out to exit after outputting via stdio's stdout.
+ Close stdin after reading it.
+ Restore previous way of closing stdout.
+ (treat_stdin): Record that stdin was read.
+ (finish_out): New function.
+
+ gzip: fix bug with -l output to pipes
+ Problem reported by Christian Franke via Eric Blake in:
+ http://bugs.gnu.org/23314
+ * NEWS: Mention this.
+ * gzip.c (main): Do not close stdout twice when given -l.
+ Instead, -l now just fflushes stdout, so that fdatasync
+ can synchronize it if --synchronize is also specified.
+ * tests/list: New test case.
+ * tests/Makefile.am (TESTS): Add it.
+
+2016-03-28 Paul Eggert <eggert@cs.ucla.edu>
+
+ Port to Oracle Solaris Studio 12.4
+ Problem reported by Kiyoshi KANAZAWA in: http://bugs.gnu.org/23133
+ * NEWS: Document this.
+ * configure.ac (ASMV): Do not define if NO_ASM is
+ anywhere in DEFS; it doesn't need to be surrounded by white space.
+ * lib/match.c: Do not use x86 version if __x86_64__ is defined.
+
+2016-03-27 Jim Meyering <meyering@fb.com>
+
+ maint: post-release administrivia
+ * NEWS: Add header line for next release.
+ * .prev-version: Record previous version.
+ * cfg.mk (old_NEWS_hash): Auto-update.
+
+ version 1.7
+ * NEWS: Record release date.
+
+2016-03-26 Paul Eggert <eggert@cs.ucla.edu>
+
+ Port to NetBSD 7.0
+ Problem reported by Assaf Gordon in: http://bugs.gnu.org/23107#13
+ * gzexe.in, zdiff.in, zgrep.in: Don't rely on mktemp -t,
+ as it has a different meaning in NetBSD.
+
+ * tests/init.sh: Sync from Gnulib.
+
+ Port to Alpine Linux which uses Busybox
+ * Makefile.am (check-local): Use plain diff rather than
+
+2016-03-24 Jim Meyering <meyering@fb.com>
+
+ gzip: also honor GZIP=--rsyncable
+ * gzip.c (main): Also accept --rsyncable when it is specified
+ via the GZIP environment variable.
+ I noticed this when gzip's "make dist" failed because maint.mk
+ detected that gzip now honors --rsyncable, yet when it set GZIP_ENV
+ to include that, and that propagated via automake-generated code
+ to the GZIP setting used in the "make dist" rule, there, it was not
+ honored, and caused "make dist" to fail.
+
+2016-03-21 Paul Eggert <eggert@cs.ucla.edu>
+
+ Fix typo in previous patch
+
+ Port to Solaris 11 /bin/sh
+ * m4/shell.m4 (AC_PROG_SHELL): Reject Solaris 11 /bin/sh.
+ A problem was reported by Nelson H. F. Beebe for OpenIndiana.
+ I reproduced a problem with different symptoms on Solaris 11.
+ Switching to Bash fixed it, and I hope this fixes it for
+ OpenIndiana too, since both problems appear to be shell-related.
+
+2016-03-18 Paul Eggert <eggert@cs.ucla.edu>
+
+ zgrep: with -f SPECIAL, read SPECIAL just once
+ Problem reported by Fulvio Scapin in: http://bugs.gnu.org/22945
+ * NEWS: Document this.
+ * tests/zgrep-f: Add a test.
+ Adjust a test to cover the case of more than one line in -f's input.
+ * zgrep.in (with_filename): With -f FILE, if FILE is stdin or not
+ a regular file, copy it into a temporary and use the temporary.
+
+2016-03-15 Paul Eggert <eggert@cs.ucla.edu>
+
+ gzip: port to AIX 7.1 + xlc V12.1
+ * inflate.c, unlzw.c, util.c: Include tailor.h after including any
+ system include file that might in turn include signal.h for the
+ first time, so that SIGPIPE is not #defined to 0 prematurely,
+ which clashes with signal.h's SIGPIPE.
+
+2016-03-15 Jim Meyering <meyering@fb.com>
+
+ gnulib: update to latest
+
+ maint: don't ignore gitlog-to-changelog failure
+ * Makefile.am (gen-ChangeLog): Don't ignore failure of
+ gitlog-to-changelog. This syncs to coreutils' copy of this rule.
+
+2016-03-06 Paul Eggert <eggert@cs.ucla.edu>
+
+ gzip: pacify clang
+ * gzip.c (do_list): Use 2D array of char for month abbreviations,
+ as this is clearer anyway, and it pacifies Clang. Problem reported
+ by Assaf Gordon in: http://bugs.gnu.org/22900#40
+
+2016-03-06 Jim Meyering <meyering@fb.com>
+
+ tests: port to systems for which ":" is not the PATH separator
+ * Makefile.am (new_path): New variable.
+ (check-local): Use $(PATH_SEPARATOR) rather than a literal ":",
+ to avoid "make syntax-check" failure.
+
+2016-03-06 Paul Eggert <eggert@cs.ucla.edu>
+
+ doc: minor --rsyncable doc fixes
+ * doc/gzip.texi (Sample): Mention --rsyncable.
+ * gzip.c (help): Sort and do not capitalize the new --rsyncable
+ help string.
+
+ gzip: minor zgrep cleanup
+ * zgrep.in: Simplify previous change.
+
+ gzip: port zgrep to Solaris 11.2
+ Problem reported by Assaf Gordon in: http://bugs.gnu.org/22900#11
+ * zgrep.in: Port to Solaris 11.2 /bin/sh (ksh 93u 2011-02-08),
+ where $? is 256+SIG when a process was killed with signal SIG, and
+ where 'exit 257' is equivalent to 'exit 1'. Apparently some other
+ sh implementations use 256+128+SIG. So, instead of using plain
+ 'exit $?', use the equivalent of 'exit ((128 * (128 <= $?)) + $? %
+ 128)' within the script, and use the equivalent of 'kill -$($? %
+ 128)' at the top level if the exit status is 128 or more.
+
+ gzip: remove --__bindir
+ * NEWS: Document this.
+ * gzexe.in, gunzip.in, zcat.in, zcmp.in, zdiff.in, zegrep.in:
+ * zfgrep.in, zforce.in, zgrep.in, zless.in, zmore.in, znew.in:
+ Remove support for undocumented --__bindir option. Callers can
+ set PATH instead; that's less error-prone. This fixes some
+ 'make check' failures on my Solaris 11 box, which occurred
+ because the test scripts were mistakenly testing the installed
+ gzip rather than the gzip in the working directory.
+ * Makefile.am (.in): Don't replace bindir.
+ (check-local): Set PATH instead of using --__bindir.
+ * tests/help-version (gunzip_setuphelp, gzexe_setuphelp)
+ (zcat_setuphelp, zcmp_setuphelp, zdiff_setuphelp)
+ (zegrep_setuphelp, zfgrep_setuphelp, zforce_setuphelp)
+ (zgrep_setuphelp, zless_setuphelp, zmore_setuphelp)
+ (znew_setuphelp): Remove. All uses removed.
+ (lbracket_setup): Default args to empty.
+
+2016-03-04 Jim Meyering <meyering@fb.com>
+
+ tests: fix "make check" failure on AIX 7.1
+ * tests/Makefile.am (TESTS_ENVIRONMENT): Modernize:
+ remove unused shell_or_perl_ function, and use an
+ export_with_values function as grep does, to remove
+ a lot of duplication.
+ Reported by Assaf Gordon in http://debbugs.gnu.org/22900
+
+2016-03-02 Rusty Russell <rusty@rustcorp.com.au>
+
+ gzip: support the --rsyncable option
+ * deflate.c: Include verify.h.
+ (RSYNC_WIN, RSYNC_SUM_MATCH): Define.
+ (rsync_sum, rsync_chunk_end): Declare file-scoped globals.
+ (lm_init): Initialize globals.
+ (fill_window): Update rsync_chunk_end.
+ (rsync_roll): New function.
+ (RSYNC_ROLL): New macro.
+ (FLUSH_BLOCK): Update for new "pad" parameter.
+ (deflate_fast): Use RSYNC_ROLL and flush/pad.
+ (deflate): Likewise.
+ * trees.c (flush_block): Add "pad" parameter.
+ * gzip.c (rsync): New global.
+ (RSYNCABLE_OPTION, longopts, help): Add the option.
+ (main): Set the new global.
+ * gzip.h (rsync): Declare new global.
+ (flush_block): Update prototype.
+ * doc/gzip.texi: Document it.
+ * gzip.1: Likewise.
+ * bootstrap.conf: Use verify module.
+ * NEWS (New feature): Mention it.
+ * Makefile.am (check-local): Add tests and use AM_V__* command-
+ hiding opions. Reported against Debian here:
+ https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=118118
+
+2016-02-28 Jim Meyering <meyering@fb.com>
+
+ maint: dist-check.mk: remove .deps dirs before comparing
+ "make distcheck" with automake-from-trunk would fail like this:
+ ...
+ Only in /gz/tests/torture/gzip/test/gzip-1.6.42-9d47.old: .deps
+ Only in /gz/tests/torture/gzip/test/gzip-1.6.42-9d47.old/lib: .deps
+ Only in /gz/tests/torture/gzip/test/gzip-1.6.42-9d47.old/lib/glthread: .deps
+ * dist-check.mk (my-distcheck): Remove all .deps directories before
+ comparing the two hierarchies.
+
+2016-02-28 Paul Eggert <eggert@cs.ucla.edu>
+
+ misc: update --version copyright
+ * gunzip.in, gzexe.in, zcat.in, zdiff.in, zforce.in, zgrep.in:
+ * zless.in, zmore.in, znew.in: Update copyright year in --version
+ output to 2016.
+
+ gzip: new option --synchronous
+ This follows up on the earlier patch to avoid data loss near the
+ system crashes. It makes the new behavior optional, with the
+ default off. See: http://bugs.gnu.org/22768
+ * NEWS, doc/gzip.texi (Sample, Invoking gzip), gunzip.in (usage):
+ * gzip.1, zcat.in (usage):
+ Document this.
+ * gzip.c (synchronous): New static var.
+ (SYNCHRONOUS_OPTION): New constant.
+ (longopts, help, main, treat_file): Add support for --synchronous.
+
+ gzip: use constants, not fileno
+ * gzip.c (main, treat_stdin, treat_file, get_method)
+ (check_ofname): Prefer STDIN_FILENO to fileno (stdin),
+ and similarly for STDOUT_FILENO.
+
+ gzip: fdatasync output dir before unlinking
+ This follows up on the earlier patch to avoid data loss near
+ the system crashes. See: http://bugs.gnu.org/22768
+ * bootstrap.conf (gnulib_modules): Add dirname-lgpl, fdatasync,
+ openat-safer, unistd-safer, unlinkat.
+ * gzip.c: Include stddef.h, dirname.h.
+ Include fcntl--.h instead of fcntl-safer.h.
+ (RW_USER): Remove; no longer needed.
+ (dfname, dfd): New static vars.
+ (dot): New static const.
+ (atdir_eq, atdir_set): New functions.
+ (treat_file): Also fdatasync the output directory, if !keep.
+ (treat_file, create_outfile, open_and_stat):
+ Use dir fd for unlinkat and openat, if possible.
+ (open_and_stat): Omit mode argument, since it was always the
+ same. All callers changed.
+ * lib/.gitignore, m4/.gitignore: Add new gnulib files.
+ * tailor.h (PROTO, NO_STDIN_FSTAT, OPEN): Remove. Remove MACOS
+ section, as this stuff would not work anyway now, and circa 2001
+ Apple stopped supporting Mac OS 9 and earlier.
+ * zip.c: Do not include unistd.h and fcntl.h, as this file does
+ not directly use any symbols defined by those headers.
+
+2016-02-22 Paul Eggert <eggert@cs.ucla.edu>
+
+ fsync output file before closing
+ Problem reported by Yanyan Jiang 蒋炎岩 in: http://bugs.gnu.org/22768
+ * NEWS: Document this.
+ * bootstrap.conf (gnulib_modules): Add fsync.
+ * gzip.c (treat_file): Call fsync just before closing the output.
+ * lib/.gitignore, m4/.gitignore: Add fsync-related gnulib files.
+
+2016-01-22 Jason Leschnik <jason@leschnik.me>
+
+ doc: correct a diagnostic in man page to match actual
+ * gzip.1: s/no change/unchanged/
+ This addresses http://debbugs.gnu.org/22413
+
+2016-01-01 Jim Meyering <meyering@fb.com>
+
+ maint: update copyright year, bootstrap, init.sh
+ Run "make update-copyright" and then...
+
+ * gzip.c: Transform the copyright notice via s/2015/2016/.
+ * gnulib: Update to latest.
+ * tests/init.sh: Update from gnulib.
+ * bootstrap: Likewise.
+
+2015-11-01 Jim Meyering <meyering@fb.com>
+
+ maint: avoid three warnings from the very latest gcc-built-from-git
+ * unzip.c (unzip): Correct two format strings to match the types of the corresponding arguments.
+ * unlzw.c (unlzw): Cast an "int" to unsigned to match expected type of %x.
+
+2015-08-24 Jim Meyering <meyering@fb.com>
+
+ maint: adjust copyright notices in *.in files to be consistent
+ The copyright year ranges in *.in files were not being updated,
+ because of a missing ", Inc." suffix. Add that, run
+ run "make udpate-copyright", and ensure 2010..2015 year
+ ranges are covered.
+ * gunzip.in: Update copyright notice and year ranges.
+ * gzexe.in: Likewise.
+ * zcat.in: Likewise.
+ * zdiff.in: Likewise.
+ * zforce.in: Likewise.
+ * zgrep.in: Likewise.
+ * zless.in: Likewise.
+ * zmore.in: Likewise.
+ * znew.in: Likewise.
+
+2015-08-24 Jim Meyering <meyering@fb.com>
+
+ build: avoid -Wshift-negative-value warning
+ Configured with --enable-gcc-warnings, a gcc-6.x build would fail with this:
+
+ gzip.c:118:32: error: left shift of negative value
+ #define OFF_T_MIN (~ (off_t) 0 << (sizeof (off_t) * CHAR_BIT - 1))
+
+ * gzip.c [OFF_T_MAX]: Define in terms of TYPE_MAXIMUM, not OFF_T_MIN.
+ [OFF_T_MIN]: Remove now-unused definition.
+ Include "intprops.h" for definiton of TYPE_MAXIMUM.
+ * bootstrap.conf (gnulib_modules): Add intprops.
+
+2015-07-30 Jim Meyering <meyering@fb.com>
+
+ maint: remove dead code
+ This package has not been compilable with -DCRYPT
+ since commit v1.4-82-g9d1b943. Remove final vestiges.
+ * bits.c (copy_block) [CRYPT]: Remove #ifdef'd code.
+ * inflate.c (NEXTBYTE) [CRYPT]: Likewise.
+ Prompted by a report from Flávio Medeiros
+ that HEADER and T might be used uninitialized.
+
+2015-03-17 Paul Eggert <eggert@cs.ucla.edu>
+
+ gzip: make the GZIP env var obsolescent
+ * NEWS, gzip.1:
+ * doc/gzip.texi (Environment, Tapes): Document this.
+ * gzip.c (args): Remove static var; no longer needed now that
+ 'main' frees it. All uses removed.
+ (ENV_OPTION, shortopts): New constants.
+ (main): Warn about nontrivial uses of GZIP. Reject dangerous uses.
+ * tests/gzip-env: New test case.
+ * tests/Makefile.am (TESTS): Add it.
+ * util.c (add_envopt): Create new vector instead of adding to old
+ one. Only use changed.
+
+2015-03-13 Paul Eggert <eggert@cs.ucla.edu>
+
+ maint: adjust to recent gnulib
+ * doc/.gitignore: Add gendocs_template_min.
+ * lib/.gitignore: Add assure.h.
+
+2015-02-08 Jim Meyering <meyering@fb.com>
+
+ maint: ensure that --version's copyright date is current
+ * cfg.mk (sc_gzip_copyright_check): Ensure we keep this copyright
+ year number up to date. Reported by Paul Eggert.
+ * gzip.c (license_msg): Include only the current year number,
+ as is done in nearly every other program.
+
+ gnulib: update to latest
+
+2015-01-01 Jim Meyering <meyering@fb.com>
+
+ maint: update copyright year ranges to include 2015; update gnulib
+
+2014-11-10 Jim Meyering <meyering@fb.com>
+
+ maint: move new NEWS entry into block for upcoming release
+ * NEWS: Move the latest NEWS entry from the block for gzip-1.6
+ into the block for the upcoming release.
+
+2014-11-10 Paul Eggert <eggert@cs.ucla.edu>
+
+ gzip: adjust -v output when -k is also specified
+ Problem reported by Eric Benoit in: http://bugs.gnu.org/16401
+ * gzip.c (treat_file): When keeping a file, don't say it's replaced.
+ * NEWS: Document this.
+ * tests/keep: Test this.
+
+2014-11-10 Jim Meyering <meyering@fb.com>
+
+ maint: enable more syntax checks
+ * cfg.mk (local-checks-to-skip): Remove several rule names from this
+ list, thus enabling the corresponding checks. To fix some, I made
+ syntactic changes to source files. In other cases, I exempted certain
+ files from the checks.
+ Add exemptions for these:
+ sc_prohibit_atoi_atof = ^(gzip|sample/sub)\.c$$
+ sc_space_tab = ^lib/match\.c$$
+ sc_useless_cpp_parens = ^(lib/match\.c|tailor\.h)$$
+ * configure.ac: Add quotes to fix under-quoting.
+ * deflate.c: Remove unnecessary cpp parentheses.
+ * tests/Makefile.am (TEST_ENVIRONMENT): Remove space-before-TAB.
+ * unlzw.c: Change some TABs to spaces.
+
+ maint: avoid false positive match in check for double semicolon
+ * cfg.mk (exclude_file_name_regexp--sc_prohibit_double_semicolon):
+ Exempt the file, lib/match.c, from gnulib's new double-semicolon
+ check.
+
+ gnulib+bootstrap: update to latest
+ * gnulib: Update the submodule.
+ * bootstrap: Update from gnulib.
+
+2014-10-10 Paul Eggert <eggert@cs.ucla.edu>
+
+ tests: use local dir for output
+ Reported by Kiyoshi KANAZAWA in: http://bugs.gnu.org/18679
+ * tests/unpack-invalid: Use local directory, not /tmp, for output.
+
+2014-08-10 Paul Eggert <eggert@cs.ucla.edu>
+
+ gzip: fix --suffix=z bug (Bug#18239)
+ * gzip.c (get_suffix): Put --suffix string at the end
+ of the list of suffixes if it is a suffix of one one them.
+ * tests/z-suffix: New file.
+ * tests/Makefile.am (TESTS): Add it.
+
+2014-06-12 Paul Eggert <eggert@cs.ucla.edu>
+
+ zgrep: exit with status 0 if a file matches and there's no trouble
+ Reported by Pavel Raiskup in: http://bugs.gnu.org/17760
+ * zgrep.in (res): Treat exit status 0 to be greater than 1.
+ Also, exit immediately on software configuration error.
+
+2014-06-07 Paul Eggert <eggert@cs.ucla.edu>
+
+ doc: use UTF-8 in the manual
+ * doc/gzip.texi: Switch to UTF-8 encoding. Fix ASCIIisms.
+ Don't use @sc; plain caps are fine for GNU manuals.
+
+ maint: update .gitignore files
+ * lib/.gitignore, m4/.gitignore: Adjust to match current sources.
+ Also, sort.
+
+2014-06-07 Jim Meyering <meyering@fb.com>
+
+ maint: udpate all copyright notices via "make update-copyright"
+
+ maint: update copyright year range in gzip.texi
+ * doc/gzip.texi: Update copyright date.
+
+ maint: update gnulib to latest and adapt streamsavedir usage
+ * gnulib: Update module to latest.
+ * gzip.c (treat_dir): Gnulib's streamsavedir API has changed:
+ call it with a new argument, SAVEDIR_SORT_NONE, to retain the
+ preceding behavior.
+
+2014-03-06 Paul Eggert <eggert@cs.ucla.edu>
+
+ zless: improve gzip failure checking, and port to new -V format
+ Problem reported by Jaroslaw Weglinski, and LESSOPEN change
+ suggested by Mark Nudelman, in: http://bugs.gnu.org/16951
+ This doesn't fix bug 16951 entirely, as 'less' needs to be changed
+ too, but it's a start.
+ * zless.in (check_exit_status): New var.
+ (LESSOPEN): Use it.
+ (use_input_pipe_on_stdin): Adjust to output format on Fedora 20,
+ where 'less -V' outputs "less 458 (POSIX regular expressions)"
+ on the first line.
+
+2013-10-24 Paul Eggert <eggert@cs.ucla.edu>
+
+ gzip: fix permissions issue on Solaris-like systems
+ I.e., on systems that let users give files away.
+ * gzip.c (do_chown): New function.
+ (copy_stat): Use it, to change the group, then the permissions,
+ then the owner. Idea suggested by Vladimir Marek in
+ <http://bugs.gnu.org/15672#11>
+
+2013-10-03 Paul Eggert <eggert@cs.ucla.edu>
+
+ znew: avoid denial-of-service issue
+ Reported by Rich Burridge in <http://bugs.gnu.org/15522>.
+ * znew.in: Rewrite to avoid the need for a temporary file in /tmp.
+ That way, we avoid the need for set -C
+ and worrying about denial of service.
+ Use touch -r and chmod --reference rather than cpmod.
+ Assume cp -p works, as it's now universal.
+ Quote 'echo' args better, while we're at it.
+ (warn, tmp, cpmod, cpmodarg): Remove.
+ (GZIP): Unset, so that we needn't test for gzip extension.
+ (ext): Now always '.gz'.
+ * znew.1: Document the change of implementation assumptions.
+
+2013-06-19 Paul Eggert <eggert@cs.ucla.edu>
+
+ Fix spelling typo in newly-added comment.
+
+ tests: zgrep-signal race condition fix
+ * tests/zgrep-signal: Check that Perl supports dup2.
+ (exec_with_SIGPIPE_SIGDFL): Remove.
+ (write_to_dangling_pipe): Simplify by moving more of it into Perl.
+ Fix race condition, where subcommand writes to a pipe before the ":"
+ command exits. Problem reported by Thorsten Glaser in
+ <http://lists.gnu.org/archive/html/bug-gzip/2013-06/msg00028.html>.
+
+2013-06-12 Paul Eggert <eggert@cs.ucla.edu>
+
+ zgrep: usage should say which grep options are not supported
+ * zgrep.in (usage): Document which grep options are not supported.
+ Problem reported by Liron Paryente in
+ <http://lists.gnu.org/archive/html/bug-grep/2013-06/msg00005.html>.
+
+2013-06-11 Paul Eggert <eggert@cs.ucla.edu>
+
+ gzip: port util.c to Compaq C V6.5-303
+ * util.c (crc_32_tab): Move definition to front, since this
+ compiler doesn't allow declarations of static arrays with
+ incomplete types. Problem reported by Steven M. Schweda in
+ <http://lists.gnu.org/archive/html/bug-gzip/2013-06/msg00010.html>.
+
+ tests: zgrep-context assumes grep knows context
+ * tests/Makefile.am (TESTS_ENVIRONMENT): Pass GREP too.
+ * tests/zgrep-context: Check that the underlying grep supports
+ context options. Problem reported by Steven M. Schweda in
+ <http://lists.gnu.org/archive/html/bug-gzip/2013-06/msg00010.html>.
+
+ doc: zgrep exit status, unsupported options
+ * zgrep.1 (EXIT STATUS, BUGS): New sections.
+ Problem reported by Bdale Garbee in
+ <http://lists.gnu.org/archive/html/bug-gzip/2013-06/msg00007.html>.
+
+ maint: port to platforms lacking SIGPIPE
+ * tailor.h (SIGPIPE): Define to 0 if not defined. This fixes a
+ porting bug introduced as part of 2012-11-16 syntax-check cleanup.
+ Problem reported by Bdale Garbee in
+ <http://lists.gnu.org/archive/html/bug-gzip/2013-06/msg00006.html>.
+
+2013-06-09 Jim Meyering <meyering@fb.com>
+
+ maint: post-release administrivia
+ * NEWS: Add header line for next release.
+ * .prev-version: Record previous version.
+ * cfg.mk (old_NEWS_hash): Auto-update.
+
+ version 1.6
+ * NEWS: Record release date.
+
+ build: avoid automake warning that suggests use of subdir-objects
+ * configure.ac (AM_INIT_AUTOMAKE): Use the subdir-objects option.
+
+ build: avoid warning about deprecated use of automake's ACLOCAL_AMFLAGS
+ * Makefile.am (ACLOCAL_AMFLAGS): Don't use this deprecated variable.
+ * configure.ac: Do this instead: AC_CONFIG_MACRO_DIR([m4]).
+
+ build: use more portable shell syntax in search of working shell
+ * m4/shell.m4: Adjust sh/case syntax not to evoke a syntax
+ error from Solaris 10's /bin/sh.
+
+ build: update gnulib to latest, and bootstrap
+
+2013-05-28 Jim Meyering <meyering@fb.com>
+
+ tests: exercise the new --keep option
+ * tests/keep: New file.
+ * tests/Makefile.am (TESTS): Add it.
+
+2013-05-28 Rodrigo Campos <rodrigo@sdfg.com.ar>
+
+ gzip: add "--keep" option to retain (don't delete) input files
+ gzip now accepts the --keep (-k) option, for consistency with tools
+ like xz, lzip and bzip2. With this option, gzip no longer removes
+ named input files when compressing and decompressing.
+ * doc/gzip.texi: Document it.
+ * gzip.1: Likewise.
+ * gunzip.in: Likewise.
+ * NEWS: Likewise.
+ * gzip.c: Add support for "--keep".
+
+2013-04-15 Paul Eggert <eggert@cs.ucla.edu>
+
+ tests: redo patch for non-GNU gzip installed in /usr/local/bin
+ Problem with previous patch reported by Antonio Diaz Diaz in
+ <http://lists.gnu.org/archive/html/bug-gzip/2013-04/msg00011.html>.
+ * tests/help-version (gunzip_setuphelp, gzexe_setuphelp)
+ (zcat_setuphelp, zcmp_setuphelp, zdiff_setuphelp)
+ (zegrep_setuphelp, zfgrep_setuphelp, zforce_setuphelp)
+ (zgrep_setuphelp, zless_setuphelp, zmore_setuphelp)
+ (znew_setuphelp): New functions, used when testing even --help.
+ (zdiff_setup, zcat_setup, znew_setup, zgrep_setup, gzexe_setup):
+ Use gzip_setuphelp to set --__bindir.
+
+2013-04-10 Paul Eggert <eggert@cs.ucla.edu>
+
+ tests: work even if non-GNU gzip is installed in /usr/local/bin
+ Problem reported by Antonio Diaz Diaz in
+ <http://lists.gnu.org/archive/html/bug-gzip/2013-04/msg00004.html>.
+ * tests/help-version (zdiff_setup, zcat_setup, znew_setup, zgrep_setup)
+ (gzexe_setup): Pass --__bindir so that subsidiary programs are our
+ own's, not /usr/local/bin's. This requires using 'eval' on the result.
+ (zcmp_setup, gunzip_setup, zmore_setup, zless_setup, zforce_setup)
+ (zegrep_setup, zfgrep_setup): Invoke one of the other setup functions,
+ to make the patterns more obvious and simplify future maintenance.
+ * zcmp.in, zegrep.in, zfgrep.in: Pass __bindir to subsidiary program.
+
+ maint: adjust to Gnulib, Automake changes
+ * .gitignore: Add *.trs.
+ * lib/.gitignore: Add unused-parameter.h.
+
+ tests: port to Solaris 10 /bin/sh
+ * tests/Makefile.am (TESTS_ENVIRONMENT):
+ Use "FOO=val; export FOO" rather than "export FOO=val",
+ as the latter form doesn't work with Solaris /bin/sh.
+
+2013-02-25 Paul Eggert <eggert@cs.ucla.edu>
+
+ gzip: port to DMF file systems
+ * util.c (read_buffer): When reading a file with O_NONBLOCK, if
+ the read fails with errno==EAGAIN, clear O_NONBLOCK and try again.
+ Problem reported by Vitezslav Cizek in
+ <http://lists.gnu.org/archive/html/bug-gzip/2013-02/msg00030.html>.
+
+2013-02-05 Paul Eggert <eggert@cs.ucla.edu>
+
+ gzip: fix bug where you say "n" and gzip acts as if you said "y"
+ Problem reported for GCC 4.7 x86-64 -O2 by Allan McRae in
+ <http://lists.gnu.org/archive/html/bug-gzip/2013-02/msg00000.html>.
+ * NEWS: Document this. Use consistent format in earlier note.
+ * gzip.c: Include yesno.h.
+ * gzip.h (yesno): Remove decl; that's yesno.h's job.
+
+2013-01-06 Paul Eggert <eggert@cs.ucla.edu>
+
+ maint: adjust to Gnulib changes
+ * lib/.gitignore: Add glthread, math.c, unistd.c, wctype-h.c.
+ * m4/.gitignore: Remove inline.m4.
+
+2013-01-04 Jim Meyering <jim@meyering.net>
+
+ maint: update all copyright year number ranges
+ Run "make update-copyright".
+
+ build: update gnulib submodule to latest
+
+2012-12-10 Paul Eggert <eggert@cs.ucla.edu>
+
+ diagnose unexpected EOF and zero lengths in packed data
+ Problem reported by Aki Helin.
+ * NEWS: Mention Aki's reports.
+ * tests/unpack-invalid: New file,
+ with test data suggested by Aki.
+ * tests/Makefile.am (TESTS): Add it.
+ * unpack.c (read_byte): New function.
+ (look_bits, read_tree): Use it.
+ (read_tree): Check against zero bit length Huffman code.
+
+ gzip: diagnose invalid code in packed data
+ * unpack.c (unpack): When encountering a code out of range, report
+ it and fail rather than charging ahead with randomish output.
+ Problem reported by Aki Helin.
+
+2012-11-16 Jim Meyering <jim@meyering.net>
+
+ maint: avoid new syntax-check failures
+ * cfg.mk (_gl_TS_unmarked_extern_vars): Append nice_match, to avoid
+ false-positive syntax-check failure on i686.
+ * gzip.c (SIGPIPE): Remove definition. Now always provided via gnulib.
+ * lib/.gitignore: xsize.c, added by gnulib-tool.
+
+2012-11-16 Paul Eggert <eggert@cs.ucla.edu>
+
+ gzip: fix debugging/porting typo
+ * unlzw.c (unlzw) [DEBUG]: Don't assume 'long' can be printed with %d.
+
+ maint: merge build improvements from coreutils
+ * configure.ac: Invoke gl_ASSERT_NO_GNULIB_POSIXCHECK.
+ (--enable-gcc-warnings): Change help message.
+ (gl_GCC_VERSION_IFELSE): New macro.
+ Do not omit -Wunused-macros for main code.
+ Adjust other -W options as per coreutils.
+ * lib/Makefile.am (AM_CFLAGS): Use GNULIB_WARN_CFLAGS, not WARN_CFLAGS.
+ * unlzw.c (REGISTERS, REG1, REG2, ..., REG16): Remove.
+ All uses removed. These provoked -Wunused-macros warnings.
+ This sort of fiddling with registers hasn't been needed for years.
+
+ build: update gnulib submodule to latest
+
+ maint: port to platforms lacking SIGPIPE
+ * gzip.c (SIGPIPE): Define to 0 if not already defined.
+
+ doc: bring up to date and fix troff typos
+ * doc/gzip.texi (Overview): Update RFC URLs.
+ * gzip.1: Likewise. Don't say "SEE ALSO" to programs that almost
+ nobody has installed anymore.
+ * gzip.1, zmore.1: Fix some troff typos.
+ * zdiff.1: Clarify what happens with input files. Don't talk
+ about temporary file names, as they're rarely used these days.
+
+2012-10-24 Paul Eggert <eggert@cs.ucla.edu>
+
+ tests: exercise the grep -e portability fix
+ Remove workaround for Solaris, since the bug should be fixed now.
+ Suggested by Petr Sumbera in
+ <http://lists.gnu.org/archive/html/bug-gzip/2012-10/msg00005.html>.
+ * tests/zgrep-context, tests/zgrep-f: All uses removed.
+ * tests/init.cfg (require_POSIX_grep_): Remove.
+
+2012-10-23 Eric Blake <eblake@redhat.com>
+
+ build: default to --enable-gcc-warnings in a git tree
+ Anyone building from cloned sources can be assumed to have a new
+ enough environment, such that enabling gcc warnings by default will
+ be useful. Tarballs still default to no warnings, and the default
+ can still be overridden with --disable-gcc-warnings.
+ * configure.ac (gl_gcc_warnings): Set default based on environment.
+
+2012-10-20 Paul Eggert <eggert@cs.ucla.edu>
+
+ zgrep: do not assume standard 'grep' has -e
+ On Solaris 11, /usr/bin/grep -e does not work.
+ Problem reported by Petr Sumbera in
+ <http://lists.gnu.org/archive/html/bug-gzip/2012-10/msg00003.html>.
+ * Makefile.am (.in): Substitute @GREP@.
+ * configure.ac (AC_PROG_GREP): Invoke.
+ * zgrep.in (grep): Use @GREP@.
+
+2012-08-14 Paul Eggert <eggert@cs.ucla.edu>
+
+ zgrep: do not assume GNU expr
+ * zgrep.in: Do not assume '\+' has the GNU behavior in the BRE
+ given to 'expr', as POSIX does not guarantee that. Come to think
+ of it, use a shell pattern rather than 'expr', as this is more
+ efficient.
+
+2012-08-08 Jim Meyering <meyering@redhat.com>
+
+ tests: exercise the just-fixed part of zgrep
+ * tests/zgrep-context: New file.
+ * tests/Makefile.am (TESTS): Add it.
+
+2012-08-08 Jim Meyering <meyering@redhat.com>
+
+ zgrep: handle a multi-digit context option like -15
+ * zgrep.in: Do not malfunction when given an option like -15.
+ Before, it could end up treating the pattern as a file name:
+
+ $ echo x | gzip | zgrep -15 x
+ gzip: x.gz: No such file or directory
+
+ * NEWS (Bug fixes): Mention it.
+ Reported by Dan Bloch via Thomas Bushnell in
+ https://bugs.launchpad.net/bugs/1032831
+
+2012-08-07 Jim Meyering <meyering@redhat.com>
+
+ build: update gnulib, bootstrap and init.sh
+
+ maint: fix misspellings in old ChangeLog and NEWS
+ * ChangeLog-2007: s/Supress/Suppress/
+ * NEWS: Likewise.
+ * cfg.mk (old_NEWS_hash): Update to match typo fix.
+
+2012-06-19 Paul Eggert <eggert@cs.ucla.edu>
+
+ zmore: rewrite to fix bugs and assume POSIX
+ Problem reported for Solaris 9 by Daniel in
+ <http://lists.gnu.org/archive/html/bug-gzip/2012-06/msg00007.html>.
+ Rather than figure out what exactly went wrong in Solaris 9
+ it was easier to rip out all the buggy compatibility and stty cruft.
+ * zmore.in: Don't use stty or trap; simply pipe the output to 'more'
+ and let it deal with signals and terminal control.
+ Use printf, not 'echo', to avoid problems with backslashes.
+ Don't assume ANS is not 's' in the environment.
+ Use a 'more'-style header instead of rolling our own style.
+ Paginate the header, too; the old behavior lost the header.
+ * NEWS, zmore.1: Document this.
+
+2012-06-17 Jim Meyering <meyering@redhat.com>
+
+ maint: add .mailmap
+ * .mailmap: New file. Unify two spellings of Paul's name,
+ to make git log output slightly cleaner.
+
+ maint: post-release administrivia
+ * NEWS: Add header line for next release.
+ * .prev-version: Record previous version.
+ * cfg.mk (old_NEWS_hash): Auto-update.
+
+ version 1.5
+ * NEWS: Record release date.
+
+ build: update gnulib for fixed maint.mk
+
+ build: update gnulib submodule; bootstrap and init.sh, too
+ * cfg.mk: Exempt crufty tailor.h from its use of "#define off_t...".
+ * .gitignore, m4/.gitignore: Update semi-automatically (via bootstrap).
+
+2012-04-24 Paul Eggert <eggert@cs.ucla.edu>
+
+ doc: document -rf change
+ * NEWS: Document the ZFS fix.
+
+ gzip: remove CLOSEDIR
+ * gzip.c (CLOSEDIR): Remove; no longer used.
+
+ gzip: port gzip -rf to ZFS
+ Problem reported privately by Rich Burridge.
+ * bootstrap.conf: Add savedir.
+ * gzip.c: Include <savedir.h>.
+ (_D_EXACT_NAMELEN): Remove.
+ (treat_dir): Use savedir rather than reading directory entries one
+ at a time, to avoid revisiting an already-compressed file when using
+ ZFS and the -rf flags are specified.
+ * lib/.gitignore, m4/.gitignore: Ignore savedir-related files.
+
+2012-03-18 Paul Eggert <eggert@cs.ucla.edu>
+
+ gzip: fix nondeterministic compression results
+ Reported by Jakub Wilk in <http://bugs.debian.org/647522>.
+ * deflate.c (fill_window): Don't let garbage pollute the dictionary.
+
+2012-01-11 Jim Meyering <meyering@redhat.com>
+
+ tests: make all test scripts executable; work with automake-1.12
+ * tests/Makefile.am (TESTS_ENVIRONMENT): Adapt to work with upcoming
+ automake-1.12.
+ * tests/mixed: Make executable.
+ * tests/zgrep-f: Likewise.
+ * tests/zgrep-signal: Likewise.
+ * tests/znew-k: Likewise.
+
+ build: accommodate newer bootstrap from gnulib
+ * bootstrap.conf (gnulib_tool_option_extras): Add both --symlink
+ and --makefile-name=gnulib.mk.
+ * bootstrap: Update from gnulib.
+ * tests/init.sh: Update from gnulib.
+ * lib/Makefile.am: Initialize all of the following so that
+ generated code in gnulib.mk may use += to append to those variables:
+ AM_CFLAGS, BUILT_SOURCES, CLEANFILES, EXTRA_DIST, MOSTLYCLEANDIRS,
+ MOSTLYCLEANFILES, SUFFIXES, noinst_LTLIBRARIES.
+
+2012-01-01 Jim Meyering <meyering@redhat.com>
+
+ maint: update all copyright year number ranges
+ Run "make update-copyright".
+
+2011-12-21 Paul Eggert <eggert@cs.ucla.edu>
+
+ zless: decompress stdin too, if less 429 or later
+ * zless.in: Use LESSOPEN |- feature of less 429 or later.
+ Problem reported by Jeroen Roovers via Mike Frysinger in
+ <http://lists.gnu.org/archive/html/bug-gzip/2011-12/msg00006.html>.
+
+2011-11-29 Jim Meyering <meyering@redhat.com>
+
+ build: update gnulib submodule to latest
+
+ build: accommodate gnulib's new warnings with --enable-gcc-warnings
+ * configure.ac (WERROR_CFLAGS): Disable two new warnings:
+ -Wno-format-nonliteral, -Wno-unsuffixed-float-constants.
+ * gzip.h (bi_reverse): Declare with _GL_ATTRIBUTE_CONST.
+ (gzip_base_name): Declare with _GL_ATTRIBUTE_PURE.
+
+2011-11-29 Jim Meyering <meyering@redhat.com>
+
+ tests: use "compare exp out", not "compare out exp"
+ Likewise, when an empty file is expected, use "compare /dev/null out",
+ not "compare out /dev/null". I.e., specify the expected/desired contents
+ via the first file name. Prompted by a suggestion from Bruno Haible
+ in http://thread.gmane.org/gmane.comp.gnu.grep.bugs/4020/focus=29154
+
+ Run these commands:
+
+ git grep -l -E 'compare [^ ]+ exp' \
+ |xargs perl -pi -e 's/\b(compare) (\S+) (exp\S*)/$1 $3 $2/'
+ git grep -l -E 'compare [^ ]+ /dev/null' \
+ |xargs perl -pi -e 's,\b(compare) (\S+) (/dev/null),$1 $3 $2,'
+
+2011-11-05 Jim Meyering <meyering@redhat.com>
+
+ build: update gnulib submodule to latest
+
+2011-11-02 Paul Eggert <eggert@cs.ucla.edu>
+
+ * tests/zgrep-signal: Don't assume exit status 141 on PIPE signal.
+ Problem reported by Eric Blake in
+ <http://lists.gnu.org/archive/html/bug-gzip/2011-11/msg00007.html>.
+
+ * tests/zgrep-signal: Use perl instead of a nonportable shell trap.
+ Problem reported by Eric Blake in
+ <http://lists.gnu.org/archive/html/bug-gzip/2011-11/msg00005.html>.
+
+ * tests/zgrep-signal: Test for Fedora 15 signal bug.
+ Also, don't assume that SIGPIPE is SIG_DFL on entry.
+
+2011-11-02 Jim Meyering <meyering@redhat.com>
+
+ build: update gnulib submodule to latest
+
+ tests: mixed: correct size-enumeration logic
+ * tests/mixed (sizes): Fix misplaced "&& break" that made us test
+ only with a size of 0, rather than all sizes in 0..64.
+
+ maint: avoid "make syntax-check" failure
+ * gzip.c (treat_stdin): Indent with spaces, not TABs.
+
+2011-11-02 Paul Eggert <eggert@cs.ucla.edu>
+
+ * gzip.c (treat_stdin): If quiet, be quiet with plain gzip -q.
+ Problem reported by Michaël Guitton in
+ <http://lists.gnu.org/archive/html/bug-gzip/2011-11/msg00000.html>.
+
+2011-08-10 Jim Meyering <meyering@redhat.com>
+
+ maint: remove amiga, atari, msdos, nt, os2, vms sub-directories,
+ and all files therein. This was proposed months prior, and no
+ one objected.
+ * amiga/Makefile.gcc: Remove file.
+ * amiga/Makefile.sasc: Likewise.
+ * amiga/match.a: Likewise.
+ * amiga/tailor.c: Likewise.
+ * amiga/utime.h: Likewise.
+ * atari/Makefile.st: Likewise.
+ * msdos/Makefile.bor: Likewise.
+ * msdos/Makefile.djg: Likewise.
+ * msdos/Makefile.msc: Likewise.
+ * msdos/doturboc.bat: Likewise.
+ * msdos/gzip.prj: Likewise.
+ * msdos/match.asm: Likewise.
+ * msdos/tailor.c: Likewise.
+ * nt/Makefile.nt: Likewise.
+ * os2/Makefile.os2: Likewise.
+ * os2/gzip.def: Likewise.
+ * os2/gzip16.def: Likewise.
+ * vms/Makefile.gcc: Likewise.
+ * vms/Makefile.mms: Likewise.
+ * vms/Makefile.vms: Likewise.
+ * vms/Readme.vms: Likewise.
+ * vms/gzip.hlp: Likewise.
+ * vms/makegzip.com: Likewise.
+ * vms/vms.c: Likewise.
+ * Makefile.am (EXTRA_DIST): Remove those file names.
+
+ build: use largefile module and update to latest gnulib
+ * configure.ac: Remove AC_SYS_LARGEFILE, subsumed by ...
+ * bootstrap.conf (gnulib_modules): ...this. Use largefile module.
+ * gnulib: Update to latest.
+
+2011-07-12 Jim Meyering <meyering@redhat.com>
+
+ maint: update init.sh and bootstrap from gnulib
+ * bootstrap: Update from gnulib.
+ * tests/init.sh: Update from gnulib.
+
+ maint: use gnulib's realloc-gnu and malloc-gnu modules
+ * bootstrap.conf (gnulib_modules): Use realloc-gnu and malloc-gnu,
+ rather than the now-deprecated realloc and malloc modules.
+
+ build: update gnulib submodule to latest
+
+2011-06-21 Paul Eggert <eggert@cs.ucla.edu>
+
+ * deflate.c: Export nice_match to assembler.
+ (static_unless_ASMV): New macro.
+ (nice_match): Use it.
+
+2011-06-08 Jim Meyering <meyering@redhat.com>
+
+ build: fix "make syntax-check"
+ * cfg.mk (_gl_TS_unmarked_extern_vars): Add good_match.
+
+ build: avoid link failure: this time on i686 linux
+ * deflate.c (good_match): Must not be static, since it may
+ be used from lib/match.c.
+
+2011-05-14 Jim Meyering <meyering@redhat.com>
+
+ build: avoid link failure on at least i386-FreeBSD7.2
+ * deflate.c (match_start, prev_length, max_chain_length): Do not
+ declare these as static. On some types of system/arch, they are
+ used via match_.s.
+ * cfg.mk (_gl_TS_unmarked_extern_vars): Mark those three variables
+ as known-extern: match_start, prev_length, max_chain_length.
+
+2011-05-13 Jim Meyering <meyering@redhat.com>
+
+ avoid new build failure on a system without <crypt.h>
+ * bits.c: Don't include "crypt.h", now that it's deleted.
+
+ maint: use gnulib's new readme-release module
+ * bootstrap.conf (gnulib_modules): Add readme-release.
+ (bootstrap_epilogue): Add the recommended perl one-liner.
+ * README-release: Remove file; it is now generated from gnulib.
+ * .gitignore: Add it.
+
+2011-05-09 Jim Meyering <meyering@redhat.com>
+
+ build: update gnulib submodule to latest
+
+ maint: prepare for gnulib's new tight-scope syntax-check rule
+ * cfg.mk (_gl_TS_dir): Define.
+ (_gl_TS_unmarked_extern_vars): Define.
+
+ maint: declare many variables to be static
+ * deflate.c: Likewise.
+ * gzip.c: Likewise.
+ * gzip.h: Likewise.
+ * inflate.c: Likewise.
+ * trees.c: Likewise.
+ * unzip.c: Likewise.
+ * util.c: Likewise.
+
+ maint: remove crypt.[ch] stubs
+ * Makefile.am (gzip_SOURCES): Remove crypt.c
+ (EXTRA_DIST): Remove crypt.h
+ * crypt.c, crypt.h: Remove files.
+ * unpack.c: Don't #include "crypt.h"
+ * zip.c: Likewise
+ * util.c: Likewise.
+ * unzip.c: Likewise.
+
+ maint: limit scope of several functions
+ * deflate.c (longest_match): Move extern declaration into #if-ASMV block.
+ [!ASMV]: Define as static.
+ * inflate.c: Remove unnecessary prototypes.
+ ANSI-declify functions and declare them to be static.
+
+ maint: remove all uses of OF((...)) prototype-hiding macro
+ * bits.c: Remove all uses of OF.
+ * deflate.c: Likewise.
+ * gzip.c: Likewise.
+ * inflate.c: Likewise.
+ * lzw.h: Likewise.
+ * trees.c: Likewise.
+ * unlzh.c: Likewise.
+ * unpack.c: Likewise.
+ * util.c: Likewise.
+ * gzip.h: Likewise.
+ (OF): Remove its definition, too.
+
+ maint: prepare for tight-scope rule: use noinst_HEADERS
+ * Makefile.am (EXTRA_DIST): Move lzw.h and gzip.h from here to ...
+ (noinst_HEADERS): ...here.
+ For convenience, since the tight-scope rule uses $(noinst_HEADERS).
+
+2011-04-14 Jim Meyering <meyering@redhat.com>
+
+ maint: update bootstrap and init.sh from gnulib
+ * bootstrap: Likewise.
+ * tests/init.sh: Update from gnulib.
+
+ maint: note that we'll remove amiga, atari, msdos, nt, os2, vms soon
+ If someone can show that any of these are being used, let us know.
+ * TODO: Note the plan to remove those directories this year.
+
+ build: update gnulib submodule to latest
+
+ maint: fix typos in vms manual: s/it\nit/\nit/
+ * vms/gzip.hlp: Remove doubled "it".
+
+2011-04-10 Jim Meyering <meyering@redhat.com>
+
+ maint: fix typos in comment: s/to to/to/
+ * deflate.c: Remove doubled 'to's.
+
+2011-03-20 Jim Meyering <meyering@redhat.com>
+
+ maint: stop using .x-sc_* files to list syntax-check exemptions
+ Instead, use the new mechanism with which you merely use a
+ variable (derived from the rule name) defined in cfg.mk to an ERE
+ matching the exempted file names.
+ * gnulib: Update to latest, to get maint.mk that implements this.
+ * .x-sc_file_system: Remove file.
+ * .x-sc_prohibit_tab_based_indentation: Likewise.
+ * .x-sc_require_config_h: Likewise.
+ * .x-sc_require_config_h_first: Likewise.
+ * cfg.mk: Define variables to exempt the same files.
+
+2011-03-18 Jim Meyering <meyering@redhat.com>
+
+ doc: correct README-release
+ * README-release: Remove mention of -announce mailing list.
+ Unlike coreutils, gzip does not have its own.
+
+ doc: update release procedure
+ * README-release: Resync from coreutils' file by the same name.
+
+2011-01-03 Jim Meyering <meyering@redhat.com>
+
+ maint: update copyright year ranges to include 2011
+ Run "make update-copyright", so "make syntax-check" works in 2011.
+
+ build: update gnulib submodule to latest
+
+ maint: avoid failure of new test for bindtextdomain
+ * cfg.mk (local-checks-to-skip): Add sc_bindtextdomain.
+
+2010-12-02 Jim Meyering <meyering@redhat.com>
+
+ maint: avoid "make syntax-check" failure due to old-NEWS modification
+ * cfg.mk (old_NEWS_hash): Update, to reflect recent NEWS correction.
+
+2010-12-01 Paul Eggert <eggert@cs.ucla.edu>
+
+ * NEWS: The "gzip -f foo.gz" change occurred in 1.3.13, not 1.3.12
+
+2010-11-10 Paul Eggert <eggert@cs.ucla.edu>
+
+ zgrep: don't assume traditional behavior with signal numbers
+ * zgrep.in: Don't assume the exit status is the signal number plus
+ 128, as POSIX doesn't require this. No need to kill self; exiting
+ with large status is enough. Propagate all exit statuses greater
+ than 1, not merely those in the range 129..143, as there's no need
+ to treat that range specially (and it's not portable anyway).
+
+2010-11-09 Paul Eggert <eggert@cs.ucla.edu>
+
+ zgrep: fix shell portability bug with -f; fix mishandling of "-e -"
+ * tests/zgrep-f: Check for "zgrep -e -" bug, too.
+ * zgrep.in: Don't assume that if the shell redirects fd 6, then
+ this redirection is visible to the subsidiary grep. POSIX doesn't
+ guarantee this visibility except for file descriptors 0, 1, and 2,
+ and ksh does not support it. Problem reported by Thomas Schulz in
+ <http://lists.gnu.org/archive/html/bug-gzip/2010-11/msg00000.html>.
+ Also, fix a related bug: "-e -" was mishandled. These two bugs
+ were introduced by commit 5b54db4546b84ec97ff57a62f8ddb98faacf77f2
+ dated 2009-10-09.
+ (escape): Change the convention: do not assume that a stray X
+ is present at the end of the last line. All uses changed.
+ There was no longer any need for this convention, and fixing this
+ made it a bit easier to use 'sed' in a later part of the fix.
+
+2010-11-08 Paul Eggert <eggert@cs.ucla.edu>
+
+ maint: fix copyright dates that were munged by a maintenance script
+ * gunzip.in, gzexe.in, zcat.in, zcmp.in, zdiff.in, zforce.in:
+ * zgrep.in, zless.in, zmore.in, znew.in:
+ A script went awry when updating copyright dates in gzip's shell
+ scripts. It should update comments to look like "# Copyright (C)
+ 2007, 2010 Free Software Foundation, Inc." (with a set of years)
+ and version messages to look like "Copyright (C) 2010 Free
+ Software Foundation, Inc." (with just the most-recent year).
+ Instead, it sometimes ignored one, sometimes the other, and
+ typically put ranges into version messages. Fix all this stuff by
+ hand, using dates that I divined from the change logs (so they're
+ a bit more accurate than script-generated dates). We need to fix
+ the script before it runs in 2011.
+
+2010-10-23 Jim Meyering <meyering@redhat.com>
+
+ maint: anchor patterns in .gitignore files
+ * doc/.gitignore: Anchor patterns.
+ * lib/.gitignore: Likewise.
+ * m4/.gitignore: Likewise.
+
+ maint: update bootstrap and init.sh from gnulib
+ * bootstrap: Update.
+ * tests/init.sh: Update.
+
+2010-10-23 Rob Vermaas <rob.vermaas@gmail.com>
+
+ maint: update to latest gnulib; use fdutimens, not gl_futimens
+ * gzip.c (copy_stat): Use fdutimens, not gl_futimens.
+ * gnulib: Update to latest.
+
+2010-10-23 Jim Meyering <meyering@redhat.com>
+
+ maint: accommodate stricter syntax-check
+ Avoid #if, #define and #undef of always-defined symbols.
+ * gzip.c (ELOOP, SIGPIPE): Remove unneeded cpp directives.
+ * tailor.h (HAVE_DIRENT_H, HAVE_FCNTL_H, HAVE_UNISTD_H, MSDOS):
+ (O_BINARY): Likewise.
+
+ maint: make our use of gnulib's init.sh conform
+ * tests/help-version: Make use of init.sh conform.
+ * tests/helin-segv: Likewise.
+ * tests/help-version: Likewise.
+ * tests/hufts: Likewise.
+ * tests/memcpy-abuse: Likewise.
+ * tests/mixed: Likewise.
+ * tests/null-suffix-clobber: Likewise.
+ * tests/stdin: Likewise.
+ * tests/trailing-nul: Likewise.
+ * tests/zdiff: Likewise.
+ * tests/zgrep-f: Likewise.
+ * tests/zgrep-signal: Likewise.
+ * tests/znew-k: Likewise.
+
+2010-10-10 Jim Meyering <meyering@redhat.com>
+
+ maint: describe policy on copyright year number ranges
+ * README: Mention coreutils' long-standing policy on use of M-N
+ ranges in copyright year lists. Requested by Richard Stallman.
+
+2010-09-15 Paul Eggert <eggert@cs.ucla.edu>
+
+ zgrep: fix parsing of -Eh options
+ * zgrep.in: Update list of single-letter options to match what's
+ in GNU grep. Add -h as an alias for --no-filename. Bug reported
+ by Vladimir Sidorenko in
+ <http://lists.gnu.org/archive/html/bug-gzip/2010-09/msg00007.html>.
+
+2010-08-17 Paul Eggert <eggert@cs.ucla.edu>
+
+ gzip: fix NO_SIZE_CHECK for VMS
+ * gzip.c (do_list): Use if, not #if.
+ * tailor.h (NO_SIZE_CHECK) [defined(VAXC) || defined(VMS)]: Define.
+ * zip.c (zip): Simplify conditional, which was incorrect at any rate
+ for VMS.
+
+2010-08-15 Paul Eggert <eggert@cs.ucla.edu>
+
+ algorithm.doc: mention Internet RFC 1952 and modernize a bit
+ * algorithm.doc: Update to mention header-CRC and Internet RFC 1952.
+ Also, remove the crypto stuff, which never worked.
+ Inspired by that same suggestion of Greg Roelofs.
+
+ gzip: Use 0x%04x instead of %x when printing 16-bit checksums
+ * gzip.c (get_method): Use 0x%04x, not %x, to print 16-bit checksums.
+ Inspired by a suggestion of Greg Roelofs in
+ http://lists.gnu.org/archive/html/bug-gzip/2010-08/msg00004.html
+
+2010-08-03 Paul Eggert <eggert@cs.ucla.edu>
+
+ maint: update bootstrap
+ * bootstrap, bootstrap.conf, tests/init.sh: Merge from gnulib.
+
+2010-07-19 Paul R. Eggert <eggert@cs.ucla.edu>
+
+ gzip: don't assume C99, and don't assume overlapping memcpy should work
+ * tailor.h (NOMEMCPY): Remove. memcpy is entitled to not work
+ on overlapping blocks.
+ * inflate.c (inflate_codes): Don't put decl after statement.
+ Omit NOMEMCPY.
+
+ * gzip.c (get_method): don't assume size_t can be printed with %u
+
+2010-07-02 Paul Eggert <eggert@cs.ucla.edu>
+
+ Mention that gzip -d now handles FHCRC.
+
+2010-07-02 Paul Eggert <eggert@cs.ucla.edu>
+
+ Decode FHCRC flag properly, as per Internet RFC 1952.
+ Problem reported by Greg Roelofs in:
+ http://lists.gnu.org/archive/html/bug-gzip/2010-06/msg00003.html
+
+ * gzip.c (discard_input_bytes): New function.
+ (get_method): Check header checksum, if given. We never generate it,
+ but other programs may.
+ * gzip.h (HEADER_CRC): Renamed from CONTINUATION. All uses changed.
+ * tailor.h [defined __50SERIES]: Remove PRIMOS stuff that was obsolete
+ anyway and would have made this patch harder to maintain.
+ (get_char, put_char): Remove.
+ * zip.c (zip): Use put_byte instead of the now-removed put_char.
+
+2010-07-01 Paul Eggert <eggert@cs.ucla.edu>
+
+ Don't assume that sizeof (long) == 4 when computing statistics.
+ * gzip.c (get_method): Don't assume sizeof (long) == 4.
+ * zip.c (zip): Likewise.
+
+ Update Info-ZIP name and coordinates (thanks to Greg Roelofs).
+
+2010-05-11 Paul Eggert <eggert@cs.ucla.edu>
+
+ * doc/gzip.texi (Sample): Fix backslash quoting problem.
+ Problem reported by Ole Tange in
+ <http://lists.gnu.org/archive/html/bug-gzip/2010-05/msg00000.html>.
+
+2010-04-26 Jim Meyering <meyering@redhat.com>
+
+ build: update gnulib submodule to latest
+
+ maint: remove primos support
+ * Makefile.am (EXTRA_DIST): Remove all primos/ files.
+ * primos/build.cpl: Remove file.
+ * primos/ci.opts: Likewise.
+ * primos/include/errno.h: Likewise.
+ * primos/include/fcntl.h: Likewise.
+ * primos/include/stdlib.h: Likewise.
+ * primos/include/sysStat.h: Likewise.
+ * primos/include/sysTypes.h: Likewise.
+ * primos/primos.c: Likewise.
+ * primos/readme: Likewise.
+
+2010-04-08 Jim Meyering <meyering@redhat.com>
+
+ build: include cfg.mk in the distribution tarball
+ * Makefile.am (EXTRA_DIST): Add cfg.mk.
+
+2010-04-07 Eric Blake <eblake@redhat.com>
+
+ maint: ignore more built files
+ * .gitignore: Add version files.
+
+2010-04-07 Jim Meyering <meyering@redhat.com>
+
+ tests: help-version: cross-check PATH in tests
+ * tests/help-version: Cross-check $VERSION and --version output.
+ * tests/Makefile.am (TESTS_ENVIRONMENT): Export VERSION=$(VERSION).
+
+ tests: improve help-version
+ * tests/help-version: Use fail_, rather than echo+Exit.
+
+ tests: pull help-version from grep
+
+ build: keep --version strictly up to date
+ Before this change, in development, gzip's --version output could lag
+ behind reality by a couple deltas or by a "-dirty" suffix. That would
+ lead to spurious failure of the new --version-$VERSION PATH cross-check.
+ * Makefile.am (version.c, version.h): New rules.
+ (BUILT_SOURCES): Set/append.
+ (noinst_LIBRARIES, noinst_libver_a_SOURCES): Define.
+ (gzip_LDADD): Add libver.a.
+ (DISTCLEANFILES): Define.
+ * gzip.c (license): Use Version, not VERSION.
+
+2010-04-06 Jim Meyering <meyering@redhat.com>
+
+ tests: (portability) use st, not "status" as variable name
+ * tests/zgrep-signal: Do not use status as a variable name,
+ per autoconf's documentation that it is not portable to
+ some shells.
+
+ tests: s/framework_failure/framework_failure_/
+
+ tests: update init.sh from gnulib
+ * tests/init.sh: Update from gnulib.
+
+ tests: run most tests via tests/Makefile.am
+ * Makefile.am (SUBDIRS): List tests after ".".
+ Move most test-related things from here to ...
+ * tests/Makefile.am: ... here.
+ * configure.ac (AC_CONFIG_FILES): Add tests/Makefile.
+ * tests/helin-segv: Adjust.
+ * tests/help-version: Likewise.
+ * tests/hufts: Likewise.
+ * tests/memcpy-abuse: Likewise.
+ * tests/mixed: Likewise.
+ * tests/null-suffix-clobber: Likewise.
+ * tests/stdin: Likewise.
+ * tests/trailing-nul: Likewise.
+ * tests/zdiff: Likewise.
+ * tests/zgrep-f: Likewise.
+ * tests/zgrep-signal: Likewise.
+ * tests/znew-k: Likewise.
+
+ tests: skip tests that use grep's -f and -E options, if they don't work
+ * tests/init.cfg (require_grep_minus_f): New function.
+ * tests/zgrep-f: Use require_grep_minus_f. Use path_prepend_.
+
+ tests: arrange for skip and failure notices to go to stderr, not .log
+ * tests/init.cfg: New file. Make init.sh's stderr_fileno_ match
+ what the "exec 9>&2" we use in TESTS_ENVIRONMENT.
+ * Makefile.am (EXTRA_DIST): Add it.
+
+2010-04-06 Eric Blake <eblake@redhat.com>
+
+ maint: ignore generated files
+ * .gitignore: Ignore recent gnulib additions.
+
+ maint: update bootstrap
+ * bootstrap: Use latest copy from gnulib/build-aux.
+
+2010-04-05 Jim Meyering <meyering@redhat.com>
+
+ build: use gnulib's lib-ignore module
+ * bootstrap.conf (gnulib_modules): Add lib-ignore, in case it helps.
+ * Makefile.am (AM_LDFLAGS): Define it.
+
+ maint: let configure-invoked cpp emit diagnostics to config.log
+ * configure.ac: Do not discard CPP's stderr.
+
+ build: update gnulib submodule to latest, and adapt
+ * cfg.mk: Update to use new _sc_search_regexp interface. Run this:
+ perl -pi -e 's/\b_prohibit_regexp\b/_sc_search_regexp/;'
+ -e 's/\bmsg=/halt=/; s/\bre=/prohibit=/;' cfg.mk
+ and then adjust backslashes so they still line up.
+ * cfg.mk (local-checks-to-skip): Add new sc_texinfo_acronym, to skip it.
+ * msdos/tailor.c (fcalloc): Mark a diagnostic for translation, to
+ placate stricter syntax-check, even though no one uses this file.
+
+ use assembly code matcher when possible
+ * configure.ac (ASCPPPOST): Backslash-escape "#" in AC_SUBST'd
+ variable, to keep make from seeing it as a comment-introducer.
+ Based on a patch by Petr Pisar.
+ * lib/Makefile.am (match.$(OBJEXT)): Use AM_V_GEN and AM_V_at.
+ * lib/match.c: Don't include <config.h>.
+ It would impede configure-time assembler test.
+ * .x-sc_require_config_h: Exempt lib/match.c from syntax-check.
+ * .x-sc_require_config_h_first: Likewise.
+
+2010-03-20 Jim Meyering <meyering@redhat.com>
+
+ do not use stat.st_mtime of a non-regular file
+ * gzip.c: Include "timespec.h".
+ (treat_stdin): Use st_mtime only from a regular file.
+ This matters at least on Cygwin 1.7.1-1, for which a stdin-pipe has
+ the mtime of /dev/null, rather than the gzip-documented-for-pipes
+ "current time". Reported by Denis Excoffier.
+
+2010-02-22 Jim Meyering <meyering@redhat.com>
+
+ tests: exercise the fix for the decompression data-loss bug
+ * tests/null-suffix-clobber: New file.
+ * Makefile.am (TESTS): Add it.
+
+ gzip: fix a data-loss bug when decompressing with --suffix=''
+ * gzip.c (main): Disallow an empty --suffix=S also with -d.
+ Otherwise, "gzip -d -S '' F.gz" would ask if it's ok to remove the
+ existing file, "F.gz"; if you reply "yes", you'd lose all of that data.
+ Use of an empty suffix was already rejected in compression mode.
+ * gzip.1 (--suffix (-S)): Do not recommend to use "gunzip -S '' *".
+ Describe how the suffix is used when decompressing, too.
+ * NEWS (Bug fixes): mention the fix.
+ Reported by Ripduman Sohan.
+
+ tests: add ---presume-input-tty option, solely for testing
+ * gzip.c: Include <stdbool.h>.
+ (presume_input_tty): New global.
+ (main): Set it.
+ (treat_stdin, check_ofname): Use it.
+
+2010-02-07 Jim Meyering <meyering@redhat.com>
+
+ doc: minor adjustment to README-release
+ * README-release: Tweak description, to sync from coreutils.
+
+ tests: add the help-version sanity tests from coreutils
+ * tests/help-version: New file, from coreutils.
+ * Makefile.am (TESTS): Add it.
+
+ tests: make distcheck invoke "make syntax-check" and other tests
+ * dist-check.mk: New file, from coreutils.
+ * cfg.mk: Include it.
+ * Makefile.am (distcheck-hook): New rule, to make us use it.
+
+ zcmp: consistently indicate failure with exit status of 2
+ * zcmp.in: Exit with status of 2 (not 1), when writing
+ --help or --version output fails, to be more like cmp.
+
+2010-02-03 Jim Meyering <meyering@redhat.com>
+
+ tests: add more tests of gzip -cdf
+ * tests/mixed: Test "gzip -cdf" for a range of small uncompressed files.
+
+ tests: flip and adjust mixed test, now that the bug is fixed
+ * NEWS (Bug fixes): Mention the fix.
+ * Makefile.am (XFAIL_TESTS): Move tests/mixed from here...
+ (TESTS): ...to here.
+ * tests/mixed: Comment out the currently (always?) failing part.
+
+2010-02-03 Mark Adler <madler@alumni.caltech.edu>
+
+ gzip -cdf now handles concatenation of gzip'd and uncompressed data
+ * util.c (copy): Change semantics so as to honor a decremented inptr.
+ * gzip.c (get_method): When needed (-cdf), decrement inptr rather
+ than clearing it -- and output the first magic byte.
+
+2010-02-03 Dmitry V. Levin <ldv@altlinux.org>
+
+ zgrep: terminate gracefully when a pipeline is interrupted by a signal
+ zgrep is not terminated gracefully when its grep/sed pipeline
+ is terminated by a signal. For example, a command like
+ zgrep -F .TH /usr/share/man/man1/*.gz | head
+ continues working long after the "head" process completes.
+ Another example, a command like
+ zgrep unmatched-pattern /usr/share/man/man1/*.gz
+ cannot be interrupted by sending a SIGQUIT with Ctrl-\ key, it outputs
+ zgrep: line 221: test: : integer expression expected
+ and goes on.
+ * zgrep.in: Terminate gracefully when the grep/sed pipeline is
+ terminated by a signal.
+ * tests/zgrep-signal: New test.
+ * Makefile.am (TESTS): Add it.
+
+2010-02-03 Jim Meyering <meyering@redhat.com>
+
+ maint: teach "make syntax-check" the space-only indentation rule
+ * cfg.mk (sc_prohibit_tab_based_indentation): New rule, from coreutils.
+ (sc_prohibit_emacs__indent_tabs_mode__setting): Likewise.
+ * bootstrap: Remove "indent-tabs-mode: nil" directive.
+ * .x-sc_prohibit_tab_based_indentation: New file.
+
+2010-02-02 Jim Meyering <meyering@redhat.com>
+
+ global: convert indentation-TABs to spaces
+ Transformed via this shell code:
+ t=$'\t'
+ git ls-files \
+ | grep -vE '(^|/)((GNU)?[Mm]akefile|ChangeLog)|\.(am|mk)$' \
+ | grep -vE 'tests/pr/|help2man' \
+ | xargs grep -lE "^ *$t" \
+ | xargs perl -MText::Tabs -ni -le \
+ '$m=/^( *\t[ \t]*)(.*)/; print $m ? expand($1) . $2 : $_'
+
+2010-02-02 Dmitry V. Levin <ldv@altlinux.org>
+
+ wrapper scripts: write diagnostics to stderr, not to stdout
+ * zforce.in: In case of usage error, output short error diagnostics to
+ stderr instead of printing help text to stdout.
+ * zmore.in: Likewise.
+ * znew.in: Likewise.
+
+2010-02-02 Jim Meyering <meyering@redhat.com>
+
+ gzip -cdf mishandles some concatenated input streams: test it
+ * tests/mixed: Exercise "gzip -cdf" bug.
+ * Makefile.am (XFAIL_TESTS): Add it.
+ Mark Adler reported the bug.
+
+ tests: move the hufts-segv test to its own file
+ * tests/hufts: New test.
+ * Makefile.am (TESTS): Add tests/
+ (check-local): Remove the hufts-segv test from this rule.
+
+ tests: begin moving tests into their own files
+ * Makefile.am (TESTS): Add tests/stdin.
+ (check-local): Move the stdin check to its own file:
+ * tests/stdin: New script.
+
+ tests: remove unnecessary use of "path_prepend_ ."
+ It is unnecessary, since Makefile.am's TESTS_ENVIRONMENT setting
+ already adds the top build directory, and besides, is only
+ marginally useful when running stand-alone, since it presumes
+ that the script is being run from the top build directory.
+ * tests/helin-segv: Remove unnecessary use of path_prepend_.
+ * tests/memcpy-abuse: Likewise.
+ * tests/trailing-nul: Likewise.
+ * tests/zdiff: Likewise.
+ * tests/zgrep-f: Likewise.
+
+ tests: note that znew-k test depends on length of temp file name
+ * tests/znew-k: Tweak diagnostic, factor and add a surprising comment.
+
+2010-02-01 Jim Meyering <meyering@redhat.com>
+
+ build: update gnulib submodule to latest
+
+2010-02-01 Dmitry V. Levin <ldv@altlinux.org>
+
+ fix "znew -K" to work without use of compress utility
+ * znew.in: Change -K option to imply -t, do not use compress(1).
+ * znew.1: Document it.
+ * tests/znew-k: New test.
+ * Makefile.am (TESTS): Add it.
+
2010-01-20 Jim Meyering <meyering@redhat.com>
+ maint: update README-release procedure
+ * README-release: sync from coreutils.
+
+ post-release administrivia
+ * NEWS: Add header line for next release.
+ * .prev-version: Record previous version.
+ * cfg.mk (old_NEWS_hash): Auto-update.
+
version 1.4
* NEWS: Record release date.
but fortunately is not a bug, because the definition
it would have overridden was always empty.
+2010-01-10 Jim Meyering <meyering@redhat.com>
+
gzip -d would fail with a CRC error...
...for some inputs, and some memcpy implementations. It is possible
that an offending input has to be compressed "from FAT filesystem
projects / debian / gzip / blobdiff