Import man-db_2.10.0.orig.tar.xz

1 files changed, 1441 insertions, 28 deletions

diff --git a/ChangeLog b/ChangeLog
index 65e7855d..644386bd 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,1416 @@
+2022-02-04  Colin Watson  <cjwatson@debian.org>
+
+	Release man-db 2.10.0
+
+2022-01-31  Colin Watson  <cjwatson@debian.org>
+
+	gitlab-ci: Run tests with VERBOSE=1
+
+	This makes it easier to diagnose test failures.
+
+	* .gitlab-ci.yml (build-distcheck:script, build-out-of-tree:script): Set
+	VERBOSE=1.
+
+2022-01-31  Colin Watson  <cjwatson@debian.org>
+
+	man: Avoid spurious error messages due to subpages
+
+	Since man-db 2.4.2, `man` has behaved as if the `-l` option was given if
+	a manual page argument contains a slash.  Since man-db 2.5.6, this has
+	interacted slightly poorly with the subpage feature, emitting spurious
+	error messages if given multiple manual page arguments some of which
+	include a slash.  `man` no longer emits spurious error messages in this
+	case.
+
+	Fixes Savannah bug #53708.
+
+	* src/man.c (man): Move name-contains-slash case to ...
+	(man_maybe_local): ... here (new function).
+	(main): Call man_maybe_local instead of man where checking for names
+	containing slashes is acceptable.
+	* NEWS.md: Document this.
+
+2022-01-31  Colin Watson  <cjwatson@debian.org>
+
+	mandb: Fix handling of link target mtimes
+
+	Depending on directory iteration order, mandb sometimes incorrectly
+	stored the mtime of a symlink as the mtime of its target as well.
+
+	Fixes Debian bug #691643.
+
+	* src/descriptions_store.c (store_descriptions): When adding entries
+	based on an ult_src trace, use the mtime of the target file if possible
+	rather than the mtime of the base entry.
+	* src/tests/Makefile.am (ALL_TESTS): Add mandb-symlink-target-timestamp.
+	* src/tests/get-mtime.c (main): Use lstat rather than stat.
+	* src/tests/mandb-symlink-target-timestamp: New file.
+	* NEWS.md: Document this.
+
+2022-01-30  Colin Watson  <cjwatson@debian.org>
+
+	Update translation files
+
+	* po/man-db.pot, po/*.po: Update.
+
+2022-01-30  Colin Watson  <cjwatson@debian.org>
+
+	Update to Gnulib 20220130
+
+	* bootstrap: Sync to Gnulib 735f319cde4ab7e98294557181d682564241d846.
+	* bootstrap.conf (GNULIB_REVISION): Set to
+	735f319cde4ab7e98294557181d682564241d846.
+
+2022-01-30  Colin Watson  <cjwatson@debian.org>
+
+	Simplify static analysis of fatal errors
+
+	The usual idiom for fatal error reporting in man-db is `error (FATAL,
+	...)` (there are a few cases using different exit codes, but they're
+	less common).  Unfortunately, there's no easy way to tell the compiler
+	that this call doesn't return, because `error (0, ...)` *does* return.
+	As a result, some call sites required extra work to give the compiler
+	this information, which can sometimes make a difference to static
+	analysis.
+
+	To simplify this, add a new `fatal` helper function which always exits
+	`FATAL` (i.e. 2) and never returns.  This is declared with `_Noreturn`
+	so that the compiler can straightforwardly know what's going on.
+
+	* bootstrap.conf (gnulib_modules): Add verror.
+	(XGETTEXT_OPTIONS): Add --flag=fatal:2:c-format.
+	* lib/fatal.c, lib/fatal.h: New files.
+	* lib/Makefile.am (libman_la_SOURCES): Add fatal.c and fatal.h.
+	* src/tests/Makefile.am (AM_CPPFLAGS): Add -I$(top_srcdir)/lib.
+	(get_mtime_LDADD): Add $(top_builddir)/lib/libman.la.
+
+	* lib/pathsearch.c (pathsearch, directory_on_path): Use fatal.
+	* lib/sandbox.c (can_load_seccomp, make_seccomp_filter, _sandbox_load):
+	Likewise.
+	* lib/security.c (gripe_set_euid): Likewise.
+	* lib/xregcomp.c (xregcomp): Likewise.
+	* libdb/db_lookup.c (gripe_corrupt_data, dblookup_pattern): Likewise.
+	* libdb/db_ver.c (dbver_wr): Likewise.
+	* src/accessdb.c (main): Likewise.
+	* src/catman.c (parse_for_sec): Likewise.
+	* src/check_mandirs.c (chown_if_possible): Likewise.
+	* src/man-recode.c (recode): Likewise.
+	* src/man.c (open_cat_stream, format_display, gripe_converting_name):
+	Likewise.
+	* src/manconv.c (add_output): Likewise.
+	* src/manp.c (add_dir_to_path_list): Likewise.
+	* src/tests/get-mtime.c (main): Likewise.
+	* src/whatis.c (do_apropos): Likewise.
+	* src/zsoelim.l (<so>\"?[^ \t\n\"]+\"?): Likewise.
+
+	* libdb/db_lookup.c (gripe_corrupt_data, gripe_replace_key): Declare as
+	_Noreturn.
+
+	* src/accessdb.c (main): Remove now-unnecessary assertion.
+	* src/man.c (gripe_converting_name): Remove now-unnecessary abort.
+
+2022-01-30  Colin Watson  <cjwatson@debian.org>
+
+	docs: Move COPYING and COPYING.LIB to top level
+
+	I think people are more likely to expect to find them here - I recently
+	even found myself confused by their previous placement.
+
+	* docs/COPYING, docs/COPYING.LIB: Move to ...
+	* COPYING, COPYING.LIB: ... here, respectively.
+	* lib/README: Update references.
+
+2022-01-30  Colin Watson  <cjwatson@debian.org>
+
+	man: Don't modify MANSECT environment variable
+
+	Reported and diagnosed by Rob Hoelz.  Fixes Savannah bug #58896.
+
+	* src/man.c (get_section_list): Copy colon_sep_section_list before
+	passing it to strtok.
+	* NEWS.md: Document this.
+
+2022-01-30  Colin Watson  <cjwatson@debian.org>
+
+	libdb: Pacify gcc -Wempty-body
+
+	* libdb/mydbm.h (MYDBM_REORG) [NDBM, BTREE]: Change no-op macro
+	definition to avoid "suggest braces around empty body" warning in mandb.
+
+2022-01-30  Alejandro Cendejas Tena  <alex.cendejas@gmail.com>
+
+	Update Spanish manual page translation
+
+	* man/po4a/po/es.po: Update from Translation Project.
+
+2022-01-30  Colin Watson  <cjwatson@debian.org>
+
+	mandb: Don't modify DB without changing its mtime
+
+	In d9ebedad15 (man-db 2.7.0), mandb started relying on the modification
+	times of database files themselves rather than using a special row, in
+	order to make databases reproducible between otherwise-identical
+	installations (subject to predictable behaviour from the underlying
+	database).
+
+	There was a difficulty with this change.  Because purging deleted pages
+	from the database opened and closed the database in a separate phase
+	before the main phase of looking for updated manual pages, and because
+	the main phase relies on comparing against the mtime of the database to
+	find changed files, I had to arrange to restore the original mtime at
+	the end of the purge phase in order to avoid confusing the main phase
+	into being a no-op.  However, in some cases (perhaps due to other bugs,
+	but nevertheless), it's possible for the purge phase to find work to do
+	without the main phase ever finding any modified directories, which
+	meant that the net effect of mandb would be to modify its database
+	without changing its mtime.  This is bad form, and confused some backup
+	systems into believing that the filesystem had been corrupted, since
+	files having their contents changed without updating their mtime is
+	indeed a likely symptom of filesystem corruption.
+
+	To avoid this, restructure our database-handling code so that a given
+	mandb run opens any given database at most once.  This means that we no
+	longer need to modify mtimes manually, so the usual filesystem rules
+	apply.
+
+	Fixes Debian bug #1004355 and Ubuntu bug #1411633.
+
+	* bootstrap.conf (gnulib_modules): Remove futimens.
+	* libdb/db_btree.c (man_btree_close): Rename to ...
+	(man_btree_free): ... this.  Check whether wrap->file is set.  Free
+	wrap->mtime.
+	(man_btree_new): New function.
+	(man_btree_open): Convert to running on the result of man_btree_new.
+	(man_btree_get_time): Cache return value in wrap->mtime.
+	(man_btree_set_time): Remove.
+	* libdb/db_gdbm.c (man_gdbm_new): New function.
+	(man_gdbm_open_wrapper): Convert to running on the result of
+	man_gdbm_new.
+	(man_gdbm_get_time): Cache return value in wrap->mtime.
+	(man_gdbm_set_time): Remove.
+	(raw_close): Check whether wrap->file is set.
+	(man_gdbm_close): Rename to ...
+	(man_gdbm_free): ... this.
+	* libdb/db_ndbm.c (raw_close): Check whether wrap->file is set.
+	(man_ndbm_close): Rename to ...
+	(man_ndbm_free): ... this.
+	(man_ndbm_new): New function.
+	(man_ndbm_open): Convert to running on the result of man_ndbm_new.
+	(man_ndbm_get_time): Cache return value in wrap->mtime.
+	(man_ndbm_set_time): Remove.
+	* libdb/db_xdbm.c (man_xdbm_close): Rename to ...
+	(man_xdbm_free): ... this.  Update all callers.  Free dbf->mtime.
+	* libdb/db_xdbm.h (man_xdbm_close): Rename to ...
+	(man_xdbm_free): ... this.
+	* libdb/mydbm.h (man_gdbm_wrapper, man_ndbm_wrapper, man_btree_wrapper):
+	Add mtime.
+	(man_gdbm_new, man_ndbm_new, man_btree_new): Add prototypes.
+	(man_gdbm_open_wrapper, man_ndbm_open, man_btree_open): Update
+	prototypes.
+	(man_gdbm_set_time, man_ndbm_set_time, man_btree_set_time): Remove
+	prototypes.
+	(man_gdbm_close, man_ndbm_close, man_btree_close): Rename to ...
+	(man_gdbm_free, man_ndbm_free, man_btree_free): ... these, respectively.
+	(MYDBM_NEW): New macro.
+	(MYDBM_CTRWOPEN, MYDBM_RWOPEN, MYDBM_RDOPEN): Rename file argument to
+	wrap.
+	(MYDBM_CLOSE): Rename to ...
+	(MYDBM_FREE): ... this.
+	(MYDBM_SET_TIME): Remove macro.
+
+	* src/catman.c (parse_for_sec): Take a MYDBM_FILE argument rather than a
+	database path.
+	* src/check_mandirs.c (gripe_rwopen_failed, testmandirs, create_db,
+	update_db, purge_missing): Likewise.
+	* src/mandb.c (update_one_file, update_db_wrapper): Likewise.
+	* src/straycats.c (straycats): Likewise.
+	* src/check_mandirs.h (create_db, update_db, purge_missing): Update
+	prototypes.
+	* src/straycats.h (straycats): Likewise.
+
+	* src/check_mandirs.c (ensure_db_open): New function.
+	(testmandirs): Only open the database if it wasn't already open, and
+	don't close it.
+	(update_db, purge_missing): Likewise.
+	* src/mandb.c (update_one_file): Likewise.
+	* src/straycats.c (straycats): Assert that the database is already open,
+	and don't close it.
+
+	* src/accessdb.c (main): Update database opening code.
+	* src/catman.c (post_fork): Update database closing code.
+	(parse_for_sec): Move database opening and closing code to ...
+	(main): ... here, and update it.
+	* src/man.c (dbdelete_wrapper): Update database opening and closing
+	code.
+	* src/whatis.c (search): Update database opening and closing code.
+
+	* src/check_mandirs.c (purge_missing): Don't reorganize the database.
+	* src/mandb.c (mandb): Create a MYDBM_FILE from the database path, and
+	close and free it before returning.  Rearrange purging so that it runs
+	on the temporary database copy, which we close and remove if
+	purge_missing finds a consistency problem requiring us to rescan from
+	scratch.  Unless purging requires a rescan, all of the purge, main, and
+	stray cats phases now run on the same open database file.  Reorganize
+	the database before closing it if the purge phase did any work.
+	(process_manpath): Rename the temporary database into place if either of
+	the purge or stray cats phases did any work, even if the main phase
+	didn't.
+
+	* src/check_mandirs.c (update_db_time): Remove.
+	(create_db): Don't manually update the database mtime.
+	(update_db, purge_missing): Likewise.
+
+	* src/tests/Makefile.am (ALL_TESTS): Add mandb-purge-updates-timestamp.
+	(check_PROGRAMS): Add get-mtime.
+	(get_mtime_SOURCES, get_mtime_LDADD): Add.
+	* src/tests/get-mtime.c: New file: test helper to get a file's mtime
+	portably.
+	* src/tests/mandb-purge-updates-timestamp: New file.
+	* .gitignore: Add src/tests/get-mtime.
+
+	* NEWS: Document this.
+
+2022-01-29  Colin Watson  <cjwatson@debian.org>
+
+	man: Make dbdelete_wrapper use the correct database
+
+	Even if it has permissions to delete stale entries from the database,
+	dbdelete_wrapper can't assume that the most recently opened database is
+	the one from which it should delete the entry; it needs to use the
+	database to which the candidate in question belongs.
+
+	* src/man.c (database): Remove global variable.
+	(dbdelete_wrapper): Add a manpath argument, and attempt to open the
+	associated database locally.
+	(display_database_check): Pass the candidate's path (i.e. manpath) to
+	dbdelete_wrapper.
+	(try_db): Make the database path a local variable.  Reorganize cleanup
+	paths.
+	(main): Stop freeing database, since it's no longer a global variable.
+
+2022-01-29  Colin Watson  <cjwatson@debian.org>
+
+	mandb: Fix some details of error handling
+
+	* src/check_mandirs.c (testmandirs): Return -1 rather than -errno on
+	failure to create the database.
+	(create_db, update_db): Only call update_db_time if amount > 0, rather
+	than if it is non-zero (since it may be negative to indicate an error,
+	and updating the database time doesn't make sense in that case).
+	(update_db): Return -1 rather than EOF.
+	* src/mandb.c (update_db_wrapper): Check whether amount is non-zero
+	rather than whether it is unequal to EOF.
+
+2022-01-29  Colin Watson  <cjwatson@debian.org>
+
+	libdb: Remove unused MYDBM_CRWOPEN macro
+
+	* libdb/mydbm.h (MYDBM_CRWOPEN): Remove.
+
+2022-01-29  Colin Watson  <cjwatson@debian.org>
+
+	mandb: Call purge_missing and straycats from mandb
+
+	We can simplify some logic by pushing these down a layer.
+
+	* src/check_mandirs.c (purge_missing): Remove will_run_mandb argument,
+	which was always true due to --filename implying --no-purge.
+	* src/check_mandirs.h (purge_missing): Update prototype.
+	* src/mandb.c (process_manpath): Move purge_missing and straycats calls
+	to ...
+	(mandb): ... here.
+
+2022-01-29  Colin Watson  <cjwatson@debian.org>
+
+	mandb: Factor out some duplicate code
+
+	* src/mandb.c (mandb): Move common create/update logic outside the
+	database-type-specific #ifdefs.
+
+2022-01-26  Colin Watson  <cjwatson@debian.org>
+
+	Use bool in more places in mandb
+
+	* src/check_mandirs.c (testmandirs): Change "create" parameter and
+	"created" local variable types to bool.  Update all callers.
+	(check_multi_key): Change "valid" local variable to bool.
+	(purge_missing): Change "will_run_mandb" parameter and "db_exists" local
+	variable types to bool.  Update all callers.
+	* src/check_mandirs.h (purge_missing): Update prototype.
+	* src/mandb.c (struct tried_catdirs_entry): Change "seen" element type
+	to bool.  Update all users.
+	(mandb): Change "should_create" and "cachedir_tag_exists" local variable
+	types to bool.
+	(process_manpath): Change "run_mandb" local variable type to bool.
+	(is_lang_dir): Return bool.
+
+2022-01-26  Yi-Jyun Pan  <pan93412@gmail.com>
+
+	Update Traditional Chinese translation
+
+	* po/zh_TW.po: Update from Translation Project.
+	* man/THANKS: Update translator credit.
+
+2022-01-25  Colin Watson  <cjwatson@debian.org>
+
+	Add Spanish translator credit
+
+	* man/THANKS: Add translator credit.
+
+2022-01-25  Petr Pisar  <petr.pisar@atlas.cz>
+
+	Update Czech translation
+
+	* po/cs.po: Update from Translation Project.
+	* man/THANKS: Add translator credit.
+
+2022-01-24  Mario Blättermann  <mario.blaettermann@gmail.com>
+
+	Update German manual page translation
+
+	* man/po4a/po/de.po: Update from Translation Project.
+
+2022-01-24  Alejandro Cendejas Tena  <alex.cendejas@gmail.com>
+
+	Update Spanish manual page translation
+
+	* man/po4a/po/es.po: Update from Translation Project.
+
+2022-01-24  Alejandro Cendejas Tena  <alex.cendejas@gmail.com>
+
+	Update Spanish manual page translation
+
+	* man/po4a/po/es.po: Update from Translation Project.
+
+2022-01-24  Colin Watson  <cjwatson@debian.org>
+
+	Fix upload/release machinery to handle .tar.xz
+
+	Release man-db 2.10.0-pre1
+
+2022-01-24  Colin Watson  <cjwatson@debian.org>
+
+	Improve documentation of search path handling
+
+	Fixes Savannah bug #61862.
+
+	* man/man5/manpath.man5 (SEARCH PATH): New section.
+	* man/man1/apropos.man1 (ENVIRONMENT): Refer to manpath(5) for details
+	of MANPATH.
+	* man/man1/man.man1 (ENVIRONMENT): Likewise.
+	* man/man1/manpath.man1 (ENVIRONMENT): Likewise.
+	* man/man1/whatis.man1 (ENVIRONMENT): Likewise.
+	* man/man8/catman.man8 (ENVIRONMENT): Likewise.
+
+2022-01-24  Colin Watson  <cjwatson@debian.org>
+
+	Fix typos in descriptions of --systems
+
+	Fixes Savannah bug #61861.
+
+	* man/man1/apropos.man1 (OPTIONS): "system's" → "systems'".
+	* man/man1/man.man1 (Finding manual pages): Likewise.
+	* man/man1/manpath.man1 (OPTIONS): Likewise.
+	* man/man1/whatis.man1 (OPTIONS): Likewise.
+
+2022-01-24  Colin Watson  <cjwatson@chiark.greenend.org.uk>
+
+	Merge branch 'optimize-decompression' into 'main'
+
+	Significantly improve mandb performance
+
+	See merge request cjwatson/man-db!2
+
+2022-01-24  Colin Watson  <cjwatson@debian.org>
+
+	Optimize manconv_inprocess for UTF-8 target encoding
+
+	If the target encoding is UTF-8, then manconv's first stage (trial
+	conversion from UTF-8) can more efficiently be replaced with UTF-8
+	validation, leaving the original decompressed buffer unchanged on
+	success.  Suggested by Steinar H. Gunderson.
+
+	* src/manconfig.h (UNLIKELY): New macro.
+	* src/decompress.c (decompress_inprocess_buf): New function.
+	* src/decompress.h (decompress_inprocess_buf): Add prototype.
+	* src/utf8.c, src/utf8.h: New files, based on glib's UTF-8 validation
+	code.
+	* src/manconv_client.c (manconv_inprocess): Optimize case where
+	source_encoding is not UTF-8 and target_encoding is UTF-8 by returning
+	early if UTF-8 validation passes.
+	* src/Makefile.am (lexgrog_SOURCES, man_SOURCES, man_recode_SOURCES,
+	mandb_SOURCES): Add utf8.c and utf8.h.
+
+2022-01-24  Colin Watson  <cjwatson@debian.org>
+
+	Significantly improve mandb performance
+
+	Forking large numbers of subprocesses is slow.  An ideal fix would
+	involve work in libpipeline (e.g. generator functions or
+	multithreading), but in the meantime we can do much better in the common
+	case of moderately-sized pages compressed using zlib by doing in-process
+	decompression.  On my test system, this takes `mandb -c` from 344
+	seconds (or 152 seconds with `MAN_DISABLE_SECCOMP=1` before 50200d151d,
+	or 78 seconds with `MAN_DISABLE_SECCOMP=1` after 50200d151d) to 10
+	seconds.
+
+	Thanks to Steinar H. Gunderson for a proof of concept, which I reworked
+	extensively.
+
+	Fixes Debian bugs #630799 and #1003089, and Ubuntu bug #1858777.
+
+	* NEWS.md: Document this.  Bump version to 2.10.0.
+	* src/decompress.c (enum decompress_tag): Add DECOMPRESS_INPROCESS.
+	(struct decompress_inprocess): New structure.
+	(struct decompress): Add an inprocess element.
+	(decompress_new_inprocess, decompress_try_zlib, decompress_is_pipeline,
+	decompress_inprocess_len, decompress_inprocess_replace): New functions.
+	(decompress_open): Add flags argument.  Try in-process zlib
+	decompression if requested via DECOMPRESS_ALLOW_INPROCESS.  Update all
+	callers to pass a flags argument (0 unless otherwise stated).
+	(decompress_start, decompress_read, decompress_peek,
+	decompress_peek_skip, decompress_readline, decompress_peekline,
+	decompress_wait, decompress_free): Implement in-process mode.
+	* src/decompress.h (DECOMPRESS_ALLOW_INPROCESS): Define.
+	(decompress_open): Update prototype.
+	(decompress_fdopen): Update comment to indicate that this always uses
+	pipeline-based decompression.
+	(decompress_is_pipeline, decompress_inprocess_len,
+	decompress_inprocess_replace): Add prototypes.
+	(decompress_start, decompress_wait): Update comments to document
+	behaviour for in-process decompressors.
+
+	* src/manconv.c (add_output): Add output buffer argument; append to
+	output buffer if given, otherwise write to stdout as before.
+	(try_iconv): Add and pass output buffer argument.
+	(manconv): Likewise.  Update all callers to pass output buffer argument
+	(NULL unless otherwise stated).
+	* src/manconv.h (struct manconv_outbuf): New structure.
+	(manconv): Update prototype.
+	* src/manconv_client.c (manconv_inprocess): New function.
+	* src/manconv_client.h (manconv_inprocess): Add prototype.
+
+	* src/lexgrog.l (find_name): Request in-process decompression unless
+	operating on a cat page.  Use manconv_inprocess rather than add_manconv
+	in the in-process case.
+	* src/man.c (grep): Request in-process decompression.
+	* src/ult_src.c (ult_src): Likewise.
+	* src/zsoelim.l (try_compressed, zsoelim_open_file): Likewise.
+
+2022-01-24  Colin Watson  <cjwatson@debian.org>
+
+	Avoid a manconv subprocess in more cases
+
+	Suggested by Steinar H. Gunderson.
+
+	* src/manconv_client.c (add_manconv): Return early if the source and
+	target encodings are equal, not just if they're both UTF-8.
+
+2022-01-22  Colin Watson  <cjwatson@debian.org>
+
+	Make manconv error handling less abrupt
+
+	Exiting immediately on errors works OK if manconv is only ever used in a
+	subprocess, but that approach makes it hard to use in an in-process
+	context.
+
+	* src/manconv.c (add_output): New function, factored out of try_iconv
+	and manconv.
+	(tried_iconv): New enumeration.
+	(try_iconv): Use add_output.  Return TRIED_ICONV_FATAL where we would
+	previously have exited the process.
+	(manconv): Use add_output.  Return non-zero if add_output returns
+	non-zero or try_iconv returns TRIED_ICONV_FATAL.
+	* src/manconv.h (manconv): Update prototype.
+	* src/manconv_client.c (manconv_stdin): Exit with FATAL if manconv
+	returns non-zero.
+	* src/manconv_main.c (main): Likewise.
+
+2022-01-22  Colin Watson  <cjwatson@debian.org>
+
+	Clarify argument naming in add_manconv
+
+	Suggested by Steinar H. Gunderson.
+
+	* src/manconv_client.c (add_manconv): Rename source to source_encoding,
+	and target to target_encoding.
+	* src/manconv_client.h (add_manconv): Update prototype.
+
+2022-01-19  Colin Watson  <cjwatson@debian.org>
+
+	Add a layer of abstraction to decompression
+
+	It would be useful to have an optimized version of the common case of
+	zlib decompression that doesn't involve forking subprocesses.  As
+	preparation for this, insert an abstraction layer around code that reads
+	from decompressors.  This abstraction layer looks almost identical to
+	the `libpipeline` API except for name changes, but having it allows us
+	to implement decompression in some other way.
+
+	Code that requires `libpipeline`-based decompression can use
+	`decompress_get_pipeline` to assert that the decompressor uses
+	`libpipeline` and return the underlying `pipeline *`.
+
+	* src/decompress.c (enum decompress_tag, struct decompress,
+	decompress_new_pipeline, decompress_get_pipeline, decompress_start,
+	decompress_read, decompress_peek, decompress_peek_skip,
+	decompress_readline, decompress_peekline, decompress_wait,
+	decompress_free): Add.
+	(decompress_open, decompress_fdopen): Return `decompress *` rather than
+	`pipeline *`.
+	* src/decompress.h (decompress): New typedef.
+	(decompress_open, decompress_fdopen): Update prototypes.
+	(decompress_get_pipeline, decompress_start, decompress_read,
+	decompress_peek, decompress_peek_skip, decompress_readline,
+	decompress_peekline, decompress_wait, decompress_free): Add prototypes.
+
+	* src/lexgrog.l (YY_INPUT, find_name, find_name_decompressed): Use
+	decompression API.
+	* src/man-recode.c (recode): Likewise.
+	* src/man.c (get_preprocessors_from_file, get_preprocessors,
+	make_roff_command, format_display_and_save, format_display,
+	display_catman, display, display_pages, grep): Likewise.
+	* src/manconv.c (check_preprocessor_encoding, try_iconv, manconv):
+	Likewise.
+	* src/manconv_client.c (manconv_stdin): Likewise.
+	* src/manconv_main.c (main): Likewise.
+	* src/straycats.c (check_for_stray): Likewise.
+	* src/ult_src.c (ult_src): Likewise.
+	* src/zsoelim.l (YY_INPUT, <<EOF>>, zsoelim_parse_file, try_compressed,
+	zsoelim_open_file): Likewise.
+
+	* src/lexgrog.h (find_name_decompressed): Update prototype.
+	* src/manconv.h (check_preprocessor_encoding, manconv): Likewise.
+
+2022-01-19  Alejandro Cendejas Tena  <alex.cendejas@gmail.com>
+
+	Update Spanish manual page translation
+
+	* man/po4a/po/es.po: Update from Translation Project.
+
+2022-01-18  Colin Watson  <cjwatson@debian.org>
+
+	Fix missing options when invoking troff
+
+	Broken by 000cda3ec5.
+
+	* configure.ac: Move PROG_TROFF definition after all assignments to
+	$troff.
+
+2022-01-18  Colin Watson  <cjwatson@debian.org>
+
+	Fix override-dir handling
+
+	Broken by 000cda3ec5.
+
+	* m4/man-arg-override-dir.m4 (MAN_ARG_OVERRIDE_DIR): Remove superfluous
+	"$" from AC_DEFINE_UNQUOTED call.
+
+2022-01-17  Colin Watson  <cjwatson@debian.org>
+
+	Remove AM_MAINTAINER_MODE
+
+	I enabled this in fb4afb0b75, saying that timestamps were too fragile
+	for the rebuild rules to work well.  However, I've changed my mind: git
+	is good at making sure that file modification times are updated when
+	checking out a different commit, and tarballs include timestamp
+	information.  Moreover, with `AM_MAINTAINER_MODE` and without passing
+	`--enable-maintainer-mode`, flex output isn't automatically regenerated,
+	which is impossibly annoying and has tripped me up countless times since
+	2010.
+
+	* configure.ac (AM_MAINTAINER_MODE): Remove.
+
+2022-01-17  Colin Watson  <cjwatson@debian.org>
+
+	NEWS.md: Document previous commit
+
+2022-01-17  Colin Watson  <cjwatson@chiark.greenend.org.uk>
+
+	Merge branch 'C0rn3j-main-patch-74046' into 'main'
+
+	man-db.timer: Use RandomizedDelaySec over AccuracySec
+
+	See merge request cjwatson/man-db!1
+
+2022-01-17  Colin Watson  <cjwatson@debian.org>
+
+	Avoid libpipeline linkage in libman
+
+	Since it's only used by one function, and not all of man-db's tools need
+	libpipeline in their own right (e.g. accessdb), it seems worth pushing
+	this up a layer.
+
+	* lib/encodings.c (struct conversion_entry, conversion_table,
+	convert_encoding, check_preprocessor_encoding): Move to ...
+	* src/manconv.c: ... here.
+	* lib/encodings.h (check_preprocessor_encoding): Move to ...
+	* src/manconv.h: ... here.
+	* lib/Makefile.am (libman_la_CPPFLAGS): Remove $(libpipeline_CFLAGS).
+	(libman_la_LDFLAGS): Remove $(libpipeline_LIBS).
+	* src/man-recode.c, src/man.c, src/manconv.c: Include manconv.h.
+
+2022-01-17  Colin Watson  <cjwatson@debian.org>
+
+	Pacify cppcheck in check_preprocessor_encoding
+
+	* lib/encoding.c (check_preprocessor_encoding): Explicitly initialize
+	directive_end and ppsearch.  If directive is non-NULL by the time these
+	are used then they're always initialized, but cppcheck didn't manage to
+	spot that.
+
+2022-01-16  Colin Watson  <cjwatson@debian.org>
+
+	Update to Gnulib 20220116
+
+	* bootstrap: Sync to Gnulib 1eae0f7ea3c220d054025f2c9211700665f9f4a0.
+	* bootstrap.conf (GNULIB_REVISION): Set to
+	1eae0f7ea3c220d054025f2c9211700665f9f4a0.
+
+2022-01-16  Colin Watson  <cjwatson@debian.org>
+
+	Move some more declarations out of manconfig.h
+
+	Header includes should be in the same translation unit as the code that
+	uses them rather than being ambient across the whole project.
+
+	* include/manconfig.h: Remove obsolete header comment about program
+	paths.
+
+	* include/manconfig.h: Remove includes of "xvasprintf.h", <stddef.h>,
+	"xalloc.h", and "xstrndup.h", as well as "struct pipeline" declaration.
+	Update all files that relied on these to include/declare them directly
+	instead as needed.
+
+	* include/manconfig.h (MAN_DB, mkdbname): Move to ...
+	* libdb/mydbm.h: ... here.
+
+2022-01-16  Colin Watson  <cjwatson@debian.org>
+
+	Move appendstr out of manconfig.h
+
+	* include/manconfig.h (appendstr): Move to ...
+	* lib/appendstr.h: ... here (new file).
+	* lib/Makefile.am (libman_la_SOURCES): Add appendstr.h.
+	* lib/README: Update file names.
+	* lib/appendstr.c, libdb/db_delete.c, src/catman.c, src/check_mandirs.c,
+	src/compression.c, src/filenames.c, src/globbing.c, src/man.c,
+	src/manconv_client.c, src/manconv_main.c, src/manp.c, src/straycats.c,
+	src/whatis.c, src/zsoelim.l: Include appendstr.h.
+
+2022-01-16  Colin Watson  <cjwatson@debian.org>
+
+	Move debug-related declarations out of manconfig.h
+
+	* include/manconfig.h (debug_level, init_debug, debug, debug_error):
+	Move to ...
+	* lib/debug.h: ... here (new file).
+	* lib/Makefile.am (libman_la_SOURCES): Add debug.h.
+	* lib/README: Update file names.
+	* lib/debug.c, lib/encodings.c, lib/sandbox.c, lib/security.c,
+	lib/util.c, libdb/db_btree.c, libdb/db_delete.c, libdb/db_gdbm.c,
+	libdb/db_lookup.c, libdb/db_store.c, libdb/db_ver.c, src/accessdb.c,
+	src/catman.c, src/check_mandirs.c, src/descriptions.c,
+	src/descriptions_store.c, src/filenames.c, src/globbing.c,
+	src/globbing_test.c, src/lexgrog_test.c, src/man-recode.c, src/man.c,
+	src/manconv.c, src/manconv_main.c, src/mandb.c, src/manp.c,
+	src/manpath.c, src/straycats.c, src/ult_src.c, src/whatis.c,
+	src/zsoelim.l, src/zsoelim_main.c: Include debug.h.
+
+2022-01-16  Colin Watson  <cjwatson@debian.org>
+
+	Move create_tempdir out of manconfig.h
+
+	* include/manconfig.h (create_tempdir): Move to ...
+	* lib/tempfile.h: ... here (new file).
+	* lib/Makefile.am (libman_la_SOURCES): Add tempfile.h.
+	* lib/tempfile.c, src/man.c: Include tempfile.h.
+
+2022-01-16  Colin Watson  <cjwatson@debian.org>
+
+	Move util.c-related declarations out of manconfig.h
+
+	* include/manconfig.h (is_changed, is_directory, escape_shell,
+	remove_directory, trim_spaces, lang_dir, init_locale): Move to ...
+	* lib/util.h: ... here (new file).
+	* lib/Makefile.am (libman_la_SOURCES): Add util.h.
+	* lib/util.c, src/accessdb.c, src/catman.c, src/check_mandirs.c,
+	src/descriptions.c, src/globbing.c, src/globbing_test.c, src/lexgrog.l,
+	src/lexgrog_test.c, src/man-recode.c, src/man.c, src/manconv_main.c,
+	src/mandb.c, src/manp.c, src/manpath.c, src/straycats.c, src/whatis.c,
+	src/zsoelim_main.c: Include util.h.
+
+2022-01-16  Colin Watson  <cjwatson@debian.org>
+
+	Move comp_info and comp_file out of manconfig.h
+
+	* include/manconfig.h (comp_info, comp_file): Move to ...
+	* src/compression.h: ... here (new file).
+	* src/Makefile.am (lexgrog_SOURCES, man_SOURCES, man_recode_SOURCES,
+	mandb_SOURCES): Add compression.h.
+	* src/compression.c, src/filenames.c, src/man-recode.c, src/man.c,
+	src/straycats.c, src/ult_src.c: Include compression.h.
+
+2022-01-16  Colin Watson  <cjwatson@debian.org>
+
+	Move straycats out of manconfig.h
+
+	* include/manconfig.h (straycats): Move to ...
+	* src/straycats.h: ... here (new file).
+	* src/Makefile.am (mandb_SOURCES): Add straycats.h.
+	* src/mandb.c, src/straycats.c: Include straycats.h.
+
+2022-01-16  Colin Watson  <cjwatson@debian.org>
+
+	Use lexgrog type definitions consistently
+
+	* include/manconfig.h (MANPAGE, CATPAGE): Move to ...
+	* src/lexgrog.h (MANPAGE, CATPAGE): ... here.
+	* src/lexgrog.l (find_name, find_name_decompressed): Compare p_lg->type
+	against CATPAGE rather than testing its truth value.
+	* src/lexgrog_test.c (main): Set type to MANPAGE/CATPAGE rather than
+	0/1.
+
+2022-01-16  Colin Watson  <cjwatson@debian.org>
+
+	Update translation files
+
+	* po/man-db.pot, po/*.po: Update.
+
+2022-01-16  Colin Watson  <cjwatson@debian.org>
+
+	Fix build system following changes to include/*.h
+
+	* Makefile.am (noinst_HEADERS): Add include/comp_src.h and
+	include/manconfig.h.
+	* lib/Makefile.am (libman_la_CPPFLAGS): Replace
+	-I$(top_builddir)/include with -I$(top_srcdir)/include.
+	* libdb/Makefile.am (libmandb_la_CPPFLAGS): Likewise.
+	* src/Makefile.am (AM_CPPFLAGS): Likewise.
+	* src/tests/Makefile.am (AM_CPPFLAGS): Likewise.
+
+2022-01-16  Colin Watson  <cjwatson@debian.org>
+
+	Remove Checker support
+
+	The GNU Checker package was last released in 2005, and its web page
+	(https://www.gnu.org/software/checker/) says that it has been
+	decommissioned in favour of Valgrind.
+
+	* include/manconfig.h (chkr_garbage_detector): Remove.
+	* src/man.c (main): Remove call to chkr_garbage_detector.
+	* src/mandb.c (main): Likewise.
+	* src/whatis.c (search): Likewise.
+
+2022-01-16  Colin Watson  <cjwatson@debian.org>
+
+	Remove obsolete include/README
+
+	* include/README: Remove; it claimed that this directory contains files
+	created by configure, which is no longer true, and it said nothing else
+	useful.
+	* Makefile.am (dist_noinst_DATA): Remove include/README.
+
+2022-01-16  Colin Watson  <cjwatson@debian.org>
+
+	Stop generating include/*.h from configure
+
+	This was inconvenient when making changes to those central header files.
+	All `configure`-generated preprocessor symbols are now in `config.h`.
+
+	* configure.ac: Define various PROG_* symbols.  Remove AC_SUBST calls
+	for compressors and decompressors.
+	(AC_CONFIG_FILES): Remove include/comp_src.h and include/manconfig.h.
+	* m4/man-arg-override-dir.m4: Define OVERRIDE_DIR symbol.
+	* include/manconfig.h.in: Rename to ...
+	* include/manconfig.h: ... this.  Remove PROG_*, OVERRIDE_DIR, and
+	COMPRESS_EXT definitions.
+	* include/comp_src.h.in: Rename to ...
+	* include/comp_src.h: ... this.
+	* README.md: Update references to include/manconfig.h.
+	* .gitignore: Remove include/*.h.
+
+2022-01-16  Colin Watson  <cjwatson@debian.org>
+
+	Rename program preprocessor symbols to PROG_*
+
+	This is mainly in order to avoid potential confusion with `PIC` (defined
+	when building position-independent code), but I renamed all these
+	variables for consistency.
+
+	* include/manconfig.h.in (PAGER, CAT, WEB_BROWSER, TR, GREP, TROFF,
+	NROFF, EQN, NEQN, TBL, COL, VGRIND, REFER, GRAP, PIC, COMPRESSOR,
+	GUNZIP, UNCOMPRESS, BUNZIP2, UNLZMA, UNXZ, LZIP, UNZSTD): Rename to ...
+	(PROG_PAGER, PROG_CAT, PROG_BROWSER, PROG_TR, PROG_GREP, PROG_TROFF,
+	PROG_NROFF, PROG_EQN, PROG_NEQN, PROG_TBL, PROG_COL, PROG_VGRIND,
+	PROG_REFER, PROG_GRAP, PROG_PIC, PROG_COMPRESSOR, PROG_GUNZIP,
+	PROG_UNCOMPRESS, PROG_BUNZIP2, PROG_UNLZMA, PROG_UNXZ, PROG_LZIP,
+	PROG_UNZSTD): ... these (respectively).  Update all references.
+
+2022-01-16  Colin Watson  <cjwatson@debian.org>
+
+	Move lexgrog-related bits out of manconfig.h
+
+	It's generally cleaner for things like this to be in a dedicated header
+	file.
+
+	* include/manconfig.h.in (struct lexgrog, find_name,
+	find_name_decompressed): Move to ...
+	* src/lexgrog.h: ... here (new file).  Simplify declarations slightly.
+	* include/manconfig.h.in (lexgrog filter enum): Move to ...
+	* src/lexgrog.l: ... here.
+	* src/Makefile.am (lexgrog_SOURCES, mandb_SOURCES): Add lexgrog.h.
+	* src/check_mandirs.c, src/lexgrog.l, src/lexgrog_test.c,
+	src/straycats.c: Include lexgrog.h.
+
+2022-01-16  Martin  <spleefer90@gmail.com>
+
+	man-db.timer: Use RandomizedDelaySec Avoids congesting resources, otherwise this runs daily at 12:00 and 00:00 https://www.freedesktop.org/software/systemd/man/systemd.timer.html
+
+2022-01-09  Colin Watson  <cjwatson@debian.org>
+
+	Recognize Arabic and Persian translations of NAME
+
+	* src/lexgrog.l (ar_name, fa_name): Add.
+	(name): Add ar_name and fa_name.
+	* NEWS.md: Document this.
+
+2022-01-09  Colin Watson  <cjwatson@debian.org>
+
+	Note Macedonian support
+
+	* src/lexgrog.l: Note that bg_name also works for mk (Macedonian).
+
+2022-01-09  Colin Watson  <cjwatson@debian.org>
+
+	Downgrade "malformed .lf request" warning to debug
+
+	Fixes Debian bug #998426.
+
+	* src/zsoelim.l (<lfnumber,lfname>.): Downgrade and rephrase message,
+	since *roff arithmetic expressions are valid here and we can't
+	reasonably parse them.
+	* NEWS.md: Document this.
+
+2022-01-09  Colin Watson  <cjwatson@debian.org>
+
+	NEWS.md: Fix rendering with some parsers
+
+2022-01-09  Colin Watson  <cjwatson@debian.org>
+
+	Use MAYBE_UNUSED rather than _GL_UNUSED
+
+	We should be using the public name from Gnulib's `attribute.h`.
+
+	* lib/orderfiles.c (order_files) [!HAVE_LINUX_FIEMAP_H &&
+	!HAVE_POSIX_FADVISE]: Use MAYBE_UNUSED rather than _GL_UNUSED.
+	* lib/sandbox.c (_sandbox_load) [!HAVE_LIBSECCOMP]: Likewise.
+	* lib/security.c (drop_privs): Likewise.
+	* libdb/db_ndbm.c (unsorted_nextkey): Likewise.
+	* src/accessdb.c (help_filter): Likewise.
+	* src/check_mandirs.c (chown_if_possible) [!MAN_OWNER]: Likewise.
+	* src/convert.c (close_conv_to_locale): Likewise.
+	* src/decompress.c (decompress_zlib): Likewise.
+	* src/lexgrog_test.c (help_filter): Likewise.
+	* src/man.c (help_filter, squeeze_blank_lines, disable_hyphenation,
+	disable_justification): Likewise.
+	* src/manconv.c (manconv): Likewise.
+	* src/manp.c (free_config_file): Likewise.
+	* src/tests/fspause.c (main): Likewise.
+	* src/whatis.c (help_filter): Likewise.
+	* src/zsoelim_main.c (parse_opt): Likewise.
+
+2022-01-09  Colin Watson  <cjwatson@debian.org>
+
+	lexgrog: Produce output in the user's locale
+
+	Fixes Debian bug #970482.
+
+	* src/whatis.c (simple_convert): Move to ...
+	* src/convert.c: ... here (new file).  Rename to convert_to_locale, and
+	automatically handle setup/teardown of the iconv descriptor.
+	* src/convert.h: New file.
+
+	* src/whatis.c (display): Use convert_to_locale instead of
+	simple_convert.
+	(main): Remove setup/teardown of iconv descriptor, now handled
+	automatically by convert_to_locale.
+	* src/lexgrog_test.c (main): Convert name and whatis to the user's
+	locale.
+	* src/Makefile.am (lexgrog_SOURCES, whatis_SOURCES): Add convert.c and
+	convert.h.
+	* NEWS.md: Document this.
+
+2022-01-03  Colin Watson  <cjwatson@debian.org>
+
+	Add man-pages(7) reference to man(1)
+
+	Fixes Debian bug #974174.
+
+	* man/man1/man.man1 (DESCRIPTION): Add man-pages(7) reference to
+	description of section 7.
+	* man/po4a/po/man-db-manpages.pot, man/po4a/po/*.po: Update.
+	* NEWS.md: Document this.
+
+2022-01-03  Colin Watson  <cjwatson@debian.org>
+
+	Document MAN_DISABLE_SECCOMP and PIPELINE_DEBUG
+
+	Fixes Debian bug #941622.
+
+	* man/man1/man.man1 (ENVIRONMENT): Document MAN_DISABLE_SECCOMP and
+	PIPELINE_DEBUG.
+	* man/po4a/po/man-db-manpages.pot, man/po4a/po/*.po: Update.
+	* NEWS: Document this.
+
+2022-01-03  Colin Watson  <cjwatson@debian.org>
+
+	NEWS: Document previous commit
+
+2022-01-03  Colin Watson  <cjwatson@debian.org>
+
+	Reduce overhead of MAN_DISABLE_SECCOMP=1
+
+	If MAN_DISABLE_SECCOMP=1 is set (or if seccomp is otherwise
+	unavailable), then there's no need to call seccomp_init and friends,
+	which can have significant overhead even if we never actually load the
+	resulting filter.
+
+	Pointed out by Steinar H. Gunderson in https://bugs.debian.org/1003089.
+
+	* lib/sandbox.c (make_seccomp_filter): Return NULL early if
+	can_load_seccomp returns false.
+	(_sandbox_load): Return early if the relevant context is NULL.
+	(sandbox_free): Only call seccomp_release if the relevant context is
+	non-NULL.
+
+2022-01-03  Colin Watson  <cjwatson@debian.org>
+
+	Indicate that merge requests are preferred
+
+	* docs/HACKING.md (Sending patches): Describe merge request workflow and
+	indicate that it is preferred.
+
+2022-01-03  Colin Watson  <cjwatson@debian.org>
+
+	Reformat hacking documentation as Markdown
+
+	* docs/HACKING: Move to ...
+	* docs/HACKING.md: ... here.  Reformat as Markdown.
+	* docs/Makefile.am (dist_noinst_DATA): Replace HACKING with HACKING.md.
+
+2022-01-03  Colin Watson  <cjwatson@debian.org>
+
+	Add release automation
+
+	When a tag is pushed to GitLab, upload the bootstrapped source tarball
+	to the package registry, and create a release in GitLab associated with
+	the tag.
+
+	* .gitlab-ci.yml (stages): Remove test, since it had no jobs.  Add
+	upload and release.
+	(build-distcheck:script): Configure with --enable-maintainer-mode, to
+	ensure that flex-generated scanners are fresh.
+	(upload, release): New jobs.
+	* release.sh: Remove.  GitLab CI handles building releases now.
+	* Makefile.am (EXTRA_DIST): Remove release.sh.
+	* docs/HACKING: Update for GitLab-based release process.
+
+2022-01-03  Colin Watson  <cjwatson@debian.org>
+
+	Reformat release notes as Markdown
+
+	* NEWS: Move to ...
+	* NEWS.md: ... here.  Reformat as Markdown.
+	* Makefile.am (dist_noinst_DATA): Remove NEWS; Automake automatically
+	includes this file (or NEWS.md) in the distribution without help.
+	* README.md, docs/HACKING: Refer to NEWS.md instead of NEWS.
+
+2022-01-02  Colin Watson  <cjwatson@debian.org>
+
+	Remove superfluous quotes
+
+	* Makefile.am (gen_start_date): Remove superfluous quotes.
+
+2022-01-02  Colin Watson  <cjwatson@debian.org>
+
+	Add build-distcheck CI artifact
+
+	This should eventually allow publishing release tarballs built by a CI
+	process rather than on my laptop.
+
+	* .gitlab-ci.yml (variables): Set GIT_DEPTH to 0; we need full history
+	in order to build the ChangeLog file.
+	(bootstrap:before_script): Add wget, needed to fetch Gnulib PO files.
+	(build-distcheck:before_script): Add git, needed by gitlog-to-changelog.
+	(build-distcheck:artifacts): Add bootstrapped/*.tar.xz.
+
+2022-01-02  Colin Watson  <cjwatson@debian.org>
+
+	Switch CI image to debian:unstable
+
+	This gives us newer versions of various dependencies such as the
+	autotools.
+
+	* .gitlab-ci.yml (default:image): Switch from gcc to debian:unstable.
+	(pre-commit:before_script, bootstrap:before_script): Explicitly install
+	git.
+
+2022-01-02  Colin Watson  <cjwatson@debian.org>
+
+	Pacify gcc -fanalyzer in manconv
+
+	* src/manconv_main.c (main): Assert that from_code is non-NULL; this is
+	guaranteed by the argp state machine, but the compiler can't prove that.
+
+2022-01-02  Colin Watson  <cjwatson@debian.org>
+
+	Fix crash in globbing if run with no arguments
+
+	* src/globbing_test.c (parse_opt): Emit a usage message if there are no
+	non-option arguments.
+	(main): Assert that remaining_args is non-NULL; this is now guaranteed
+	by the argp state machine, but the compiler can't prove that.
+	* NEWS: Document this.
+
+2022-01-02  Colin Watson  <cjwatson@debian.org>
+
+	Pacify gcc -fanalyzer in catman
+
+	It isn't actually possible for sections to be NULL after argp parsing
+	has finished, but "gcc -fanalyzer" can't easily determine that, and it's
+	easy enough to arrange for it not to matter.
+
+	* src/catman.c (main): Handle case where sections is NULL.
+
+2022-01-02  Colin Watson  <cjwatson@debian.org>
+
+	Pacify gcc -fanalyzer in some database functions
+
+	In GCC 11.2.0, -fanalyzer seems to get confused by copies by assignment
+	of "struct datum", and thinks that there are use-after-free or
+	double-free possibilities with multiple loop iterations.  These seem to
+	be false positives, so ignore them for now.
+
+	* libdb/db_lookup.c (dblookup_pattern): Ignore false use-after-free
+	diagnostic.
+	* src/accessdb.c (main): Ignore false double-free diagnostics.
+	* src/catman.c (parse_for_sec): Ignore false use-after-free diagnostics.
+	* src/check_mandirs.c (sanity_check_db): Ignore false double-free
+	diagnostics.
+	(purge_pointers, purge_missing): Ignore false use-after-free
+	diagnostics.
+	* src/whatis.c (do_apropos): Ignore false use-after-free and double-free
+	diagnostics.
+
+2022-01-02  Colin Watson  <cjwatson@debian.org>
+
+	Pacify gcc -fanalyzer in dbdelete
+
+	The refs list can't in fact be empty by this point (because we checked
+	earlier that we could look up this_ref in it), but it's hard for "gcc
+	-fanalyzer" to prove that, so help it understand that multi_content can
+	never end up being NULL.
+
+	* libdb/db_delete.c (dbdelete): Initialize multi_content before looping
+	over refs.
+
+2022-01-02  Colin Watson  <cjwatson@debian.org>
+
+	Assert that some xasprintf calls return non-NULL
+
+	"gcc -fanalyzer" notices that xasprintf can return NULL in some
+	situations (string length > INT_MAX, invalid format string, or multibyte
+	conversion error), and that we weren't handling this in various cases
+	where we use the return value in contexts that require non-NULL values.
+	The situations seem obscure enough for simple asserts to be appropriate.
+
+	* lib/pathsearch.c (pathsearch): Assert that xasprintf returns non-NULL.
+	* lib/tempfile.c (create_tempdir): Likewise.
+	* lib/util.c (remove_directory): Likewise.
+	* libdb/db_lookup.c (make_multi_key): Likewise.
+	* libdb/db_store.c (make_content, dbstore): Likewise.
+	* src/check_mandirs.c (add_dir_entries, fix_permissions_tree): Likewise.
+	* src/compression.c (comp_file): Likewise.
+	* src/globbing.c (look_for_file): Likewise.
+	* src/man.c (main): Likewise.
+	* src/mandb.c (mandb, purge_catsubdirs): Likewise.
+	* src/manp.c (pathappend): Likewise.
+	* src/ult_src.c (find_include): Likewise.
+	* src/whatis.c (use_grep): Likewise.
+	* src/zsoelim.l (zsoelim_open_file): Likewise.
+
+2022-01-02  Colin Watson  <cjwatson@debian.org>
+
+	Fix path searching crash if getcwd fails
+
+	xgetcwd can return NULL if getcwd returns NULL for reasons other than
+	ENOMEM, so we should handle this.  Found by "gcc -fanalyzer".
+
+	* lib/pathsearch.c (pathsearch, directory_on_path): Emit a fatal error
+	if xgetcwd returns NULL.
+	* po/POTFILES.in: Add lib/pathsearch.c.
+	* NEWS: Document this.
+
+2022-01-02  Colin Watson  <cjwatson@debian.org>
+
+	Update to Gnulib 20211231
+
+	In line with Gnulib, we now require Autoconf 2.64.
+
+	* bootstrap: Sync to Gnulib 14db2b71b5bd05b94ec6126617fd32cd5f1016cd.
+	* bootstrap.conf (GNULIB_REVISION): Set to
+	14db2b71b5bd05b94ec6126617fd32cd5f1016cd.
+	(buildreq): Bump required autoconf version to 2.64.
+	* configure.ac (AC_PREREQ): Bump to 2.64.
+	(--enable-gcc-warnings): New option, based on code in coreutils.  Use
+	this to enable -fanalyzer only if --enable-gcc-warnings=expensive is
+	used; it's useful but slow.
+	* include/manconfig.h.in (create_tempdir, appendstr): Move NODISCARD to
+	the start of these function declarations, required by draft C2x.
+	* patches/argp-domain.patch: Rebase.
+	* NEWS: Document this.
+
+2022-01-02  Colin Watson  <cjwatson@debian.org>
+
+	Fix NULL dereference in get_locale_charset callers
+
+	* lib/encodings.c (get_canonical_charset_name): Declare argument and
+	return value as non-NULL.
+	(get_locale_charset): Declare return value as non-NULL.  Fall back to
+	"ANSI_X3.4-1968" if locale_charset returned NULL or the empty string.
+
+2022-01-02  Colin Watson  <cjwatson@debian.org>
+
+	Trim down direct Gnulib dependencies a little
+
+	* bootstrap.conf (gnulib_modules): Add c99 (already used indirectly, but
+	seems like a good idea to request directly now).  Remove getopt-gnu,
+	lock, and unsetenv, none of which we use directly.  Replace fcntl with
+	fcntl-h and signal with signal-h, since we use the corresponding header
+	files directly but not the corresponding functions.
+	* .gitignore: Remove lib/getopt.h.
+
+2022-01-01  Colin Watson  <cjwatson@debian.org>
+
+	Fix warnings with Autoconf >= 2.70
+
+	* configure.ac (AC_PROG_LEX): Add noyywrap argument (new in Autoconf
+	2.70, but ignored in previous versions).
+	* m4/man-bdb.m4 (MAN_CHECK_BDB): Autoconf 2.70 warns about non-literal
+	arguments to AC_CHECK_HEADERS.  Refactor loops so that the header and
+	library names are visible to m4.
+
+2022-01-01  Colin Watson  <cjwatson@debian.org>
+
+	Add an SC_ALLOW_PERMISSIVE macro
+
+	This plays slightly better with clang-format.
+
+	* lib/sandbox.c (SC_ALLOW_PERMISSIVE): New macro.
+	(make_seccomp_filter): Use SC_ALLOW_PERMISSIVE instead of forms such as
+	"if (permissive) SC_ALLOW (name);".
+
+2022-01-01  Colin Watson  <cjwatson@debian.org>
+
+	Use Gnulib attribute.h properly
+
+	manconfig.h previously used _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM without
+	first including "stdio.h", which caused build failures.  We should be
+	using the public names anyway.
+
+	* bootstrap.conf (gnulib_modules): Add attribute.
+
+	* include/manconfig.h.in (create_tempdir, appendstr): Use NODISCARD
+	rather than _GL_ATTRIBUTE_NODISCARD.
+
+	* include/manconfig.h.in (debug, debug_error): Use ATTRIBUTE_FORMAT
+	rather than _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM.
+	* lib/debug.c (vdebug): Likewise.
+
+	* include/manconfig.h.in (appendstr): Use ATTRIBUTE_SENTINEL rather than
+	_GL_ATTRIBUTE_SENTINEL.
+
+	* lib/encodings.c (get_page_encoding): Use ATTRIBUTE_MALLOC rather than
+	_GL_ATTRIBUTE_MALLOC.
+	* lib/util.c (trim_spaces): Likewise.
+
+	* lib/encodings.c (is_roff_device, get_output_encoding,
+	get_less_charset, get_jless_charset): Use ATTRIBUTE_PURE rather than
+	_GL_ATTRIBUTE_PURE.
+	* lib/glcontainers.c (string_equals, string_hash): Likewise.
+	* lib/security.c (running_setuid): Likewise.
+	* src/manp.c (canonicalized_path_equals, canonicalized_path_hash):
+	Likewise.
+	* src/whatis.c (match): Likewise.
+
+	* libdb/db_lookup.c (dash_if_unset): Use ATTRIBUTE_CONST rather than
+	_GL_ATTRIBUTE_CONST.
+	* libdb/db_store.c (compare_ids): Likewise.
+
+2022-01-01  Colin Watson  <cjwatson@debian.org>
+
+	Reduce indentation depth using C99
+
+	* src/man.c (parse_opt): Remove an enclosing block and associated
+	indentation level, since C99 allows mixing declarations and code.
+
+2022-01-01  Colin Watson  <cjwatson@debian.org>
+
+	Pacify pre-commit
+
+	* lib/mp.h: Remove trailing whitespace.
+
+2022-01-01  Colin Watson  <cjwatson@debian.org>
+
+	Simplify interface to container iterator macros
+
+	The Gnulib container iterator macros (GL_LIST_FOREACH_* and
+	GL_MAP_FOREACH_*) have to run code both before and after a chunk of
+	user-supplied code.  This previously required a START/END macro pair
+	used something like this:
+
+	    GL_LIST_FOREACH_START (names, name) {
+	        ...
+	    } GL_LIST_FOREACH_END (names);
+
+	This doesn't look natural in C, and so it was easy to get it wrong.
+
+	It's possible to do better, at the cost of some tricky macros.
+	Fortunately, Simon Tatham has already done the hard work in
+	https://www.chiark.greenend.org.uk/~sgtatham/mp/, and the necessary
+	header file is MIT-licensed, so we can incorporate it.  Now these
+	iterator macros are used more like this, which is a much more natural C
+	style:
+
+	    GL_LIST_FOREACH (names, name) {
+	        ...
+	    }
+
+	* lib/mp.h: New file.
+	* lib/Makefile.am (libman_la_SOURCES): Add mp.h.
+	* lib/README: Add mp.h.  Rephrase introductory text about licensing to
+	account for an MIT-licensed file.
+	* lib/glcontainers.h (GL_LIST_FOREACH_START, GL_LIST_FOREACH_END):
+	Rewrite as ...
+	(GL_LIST_FOREACH): ... this.  Update all callers.
+	(GL_MAP_FOREACH_START, GL_MAP_FOREACH_END): Rewrite as ...
+	(GL_MAP_FOREACH): ... this.  Update all callers.
+	* NEWS, README.md, docs/HACKING: Document C99 compiler requirement.
+
+2022-01-01  Colin Watson  <cjwatson@debian.org>
+
+	Simplify some GCC attribute handling
+
+	* include/manconfig.h.in (ATTRIBUTE_FORMAT_PRINTF,
+	ATTRIBUTE_WARN_UNUSED_RESULT, ATTRIBUTE_SENTINEL): Remove in favour of
+	Gnulib-provided macros.
+	(create_tempdir, appendstr): Use _GL_ATTRIBUTE_NODISCARD rather than
+	ATTRIBUTE_WARN_UNUSED_RESULT.
+	(debug, debug_error): Use _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM rather than
+	ATTRIBUTE_FORMAT_PRINTF.
+	(appendstr): Use _GL_ATTRIBUTE_SENTINEL rather than ATTRIBUTE_SENTINEL.
+	* lib/debug.c (vdebug): Use _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM rather
+	than ATTRIBUTE_FORMAT_PRINTF.
+
+2022-01-01  Colin Watson  <cjwatson@debian.org>
+
+	Introduce pre-commit
+
+	* .pre-commit-config.yaml: New file.
+	* .gitlab-ci.yml (stages): Add bootstrap.
+	(pre-commit): New job.
+	(bootstrap): Move to bootstrap stage.
+
+	Remove trailing whitespace from all files.
+
+2022-01-01  Colin Watson  <cjwatson@debian.org>
+
+	Update licence texts
+
+	There are no substantive licensing changes here, only formatting
+	adjustments and referring to the "GNU Lesser General Public License"
+	rather than the "GNU Library General Public License".
+
+	* docs/COPYING: Update from current contents of
+	https://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
+	* docs/COPYING.LIB: Update from current contents of
+	https://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt.
+
+2021-12-31  Colin Watson  <cjwatson@debian.org>
+
+	Document migration to GitLab
+
+	* README.md: Add link to GitLab repository.
+	(Contacting the maintainer): Add GitLab issues link.
+	* docs/HACKING (Revision control): Update for GitLab.
+	* man/man1/apropos.man1 (BUGS): Add GitLab issues link.
+	* man/man1/lexgrog.man1 (BUGS): Likewise.
+	* man/man1/man-recode.man1 (BUGS): Likewise.
+	* man/man1/man.man1 (BUGS): Likewise.
+	* man/man1/manconv.man1 (BUGS): Likewise.
+	* man/man1/manpath.man1 (BUGS): Likewise.
+	* man/man1/whatis.man1 (BUGS): Likewise.
+	* man/man1/zsoelim.man1 (BUGS): Likewise.
+	* man/man5/manpath.man5 (BUGS): Likewise.
+	* man/man8/accessdb.man8 (BUGS): Likewise.
+	* man/man8/catman.man8 (BUGS): Likewise.
+	* man/man8/mandb.man8 (BUGS): Likewise.
+	* NEWS: Document this.
+
+2021-11-17  Colin Watson  <cjwatson@debian.org>
+
+	Reformat README
+
+	* README: Move to ...
+	* README.md: ... here.  Reformat as Markdown.
+	* Makefile.am (dist_noinst_DATA): Replace README with README.md.
+	* docs/INSTALL.quick: Likewise.
+
+2021-11-16  Colin Watson  <cjwatson@debian.org>
+
+	Add .gitlab-ci.yml
+
+2021-09-19  Colin Watson  <cjwatson@debian.org>
+
+	Update some obsolete Autoconf macros
+
+	* configure.ac: Replace AC_GNU_SOURCE and AC_ISC_POSIX with
+	AC_USE_SYSTEM_EXTENSIONS.  Replace AC_CONFIG_HEADER with
+	AC_CONFIG_HEADERS.  Remove an obsolete comment.
+
+2021-09-19  Colin Watson  <cjwatson@debian.org>
+
+	Stop using obsolete AC_TRY_LINK
+
+	This has been obsolete since Autoconf 2.55.  Use its AC_LINK_IFELSE
+	expansion instead.
+
+	* m4/man-bdb.m4 (MAN_CHECK_BDB): Expand AC_TRY_LINK call using
+	AC_LINK_IFELSE.
+
+2021-09-18  Mario Blättermann  <mario.blaettermann@gmail.com>
+
+	Update German manual page translation
+
+	* man/po4a/po/de.po: Update from Translation Project.
+
+2021-09-18  Mario Blättermann  <mario.blaettermann@gmail.com>
+
+	Update German manual page translation
+
+	* man/po4a/po/de.po: Update from Translation Project.
+
+2021-07-11  Colin Watson  <cjwatson@debian.org>
+
+	Fix mishandling of suffix matches in manpath
+
+	Fixes Savannah bug #60906.
+
+	* src/manp.c (pathappend): strstr might return matches that are not at
+	the start of a manpath element, resulting in incorrect truncation.  Skip
+	any such matches.
+
 2021-02-08  Colin Watson  <cjwatson@debian.org>
 
 	Release man-db 2.9.4
@@ -89,7 +1502,7 @@
 	* man/man8/mandb.man8 (DATABASE CACHES): Remove "Type" column from
 	table.
 
-2020-07-03  Colin Watson  <cjwatson@debian.org>
+2020-07-02  Colin Watson  <cjwatson@debian.org>
 
 	Recognise Romanian translations of NAME
 
@@ -231,7 +1644,7 @@
 
 	NEWS: Remove superfluous ")"
 
-2020-04-04  Boyuan Yang  <073plan@gmail.com>
+2020-04-03  Boyuan Yang  <073plan@gmail.com>
 
 	Update Simplified Chinese manual page translation
 
@@ -368,7 +1781,7 @@
 
 	* man/po4a/po/es.po: Update from Translation Project.
 
-2019-10-11  Mario Blättermann  <mario.blaettermann@gmail.com>
+2019-10-10  Mario Blättermann  <mario.blaettermann@gmail.com>
 
 	Update German manual page translation
 
@@ -861,7 +2274,7 @@
 	* man/man1/man.man1 (DEFAULTS): Remove two stray words from the
 	description of how the pager is specified.
 
-2019-09-06  Colin Watson  <cjwatson@debian.org>
+2019-09-05  Colin Watson  <cjwatson@debian.org>
 
 	Adjust encoding declarations when recoding
 
@@ -947,7 +2360,7 @@
 	* src/man.c (get_preprocessors_from_file): Likewise.
 	* src/zsoelim.l (zsoelim_parse_file): Likewise.
 
-2019-09-01  Colin Watson  <cjwatson@debian.org>
+2019-08-31  Colin Watson  <cjwatson@debian.org>
 
 	Remove ability to undefine COMP_SRC
 
@@ -1131,7 +2544,7 @@
 	* lib/linelength.c: Include "linelength.h".
 	* lib/orderfiles.c: Include "orderfiles.h".
 
-2019-08-24  Colin Watson  <cjwatson@debian.org>
+2019-08-23  Colin Watson  <cjwatson@debian.org>
 
 	Simplify some GCC attribute handling
 
@@ -1154,7 +2567,7 @@
 	shorter _GL_UNUSED.
 	(ATTRIBUTE_MALLOC): Remove; it was unused.
 
-2019-08-24  Colin Watson  <cjwatson@debian.org>
+2019-08-23  Colin Watson  <cjwatson@debian.org>
 
 	Use C11/Gnulib's _Noreturn
 
@@ -1163,7 +2576,7 @@
 	ATTRIBUTE_NORETURN.
 	* include/manconfig.h.in (ATTRIBUTE_NORETURN): Remove.
 
-2019-08-24  Colin Watson  <cjwatson@debian.org>
+2019-08-23  Colin Watson  <cjwatson@debian.org>
 
 	Update to Gnulib 20190821
 
@@ -2707,14 +4120,14 @@
 	* src/check_mandirs.c (testmandirs, update_db): Likewise.
 	* src/man.c (maybe_update_file): Likewise.
 
-2018-04-05  Colin Watson  <cjwatson@debian.org>
+2018-04-04  Colin Watson  <cjwatson@debian.org>
 
 	Fix broken test
 
 	* src/tests/man-8: Fix expected output to account for recent change to
 	locale_macros.
 
-2018-04-05  Colin Watson  <cjwatson@debian.org>
+2018-04-04  Colin Watson  <cjwatson@debian.org>
 
 	man: Only change directory in child processes
 
@@ -3290,7 +4703,7 @@
 
 	* docs/INSTALL.quick: Bump minimum libpipeline version to 1.4.0.
 
-2017-07-18  Colin Watson  <cjwatson@debian.org>
+2017-07-17  Colin Watson  <cjwatson@debian.org>
 
 	Fix formatting error in Turkish translation
 
@@ -4342,23 +5755,23 @@
 	* configure.ac: Require libpipeline >= 1.4.0.
 	* NEWS: Document this.
 
-2014-10-23  Colin Watson  <cjwatson@debian.org>
+2014-10-22  Colin Watson  <cjwatson@debian.org>
 
 	NEWS: Document recent Solaris portability changes
 
-2014-10-23  Colin Watson  <cjwatson@debian.org>
+2014-10-22  Colin Watson  <cjwatson@debian.org>
 
 	Fix linking of fspause on Solaris
 
 	* src/tests/fspause.c (main): Set program_name.  Patch by Peter Bray.
 
-2014-10-23  Colin Watson  <cjwatson@debian.org>
+2014-10-22  Colin Watson  <cjwatson@debian.org>
 
 	autogen.sh: Avoid "export VARIABLE=value" syntax
 
 	Older Solaris shells do not support this.  Patch by Peter Bray.
 
-2014-10-23  Colin Watson  <cjwatson@debian.org>
+2014-10-22  Colin Watson  <cjwatson@debian.org>
 
 	gnulib: Import strcasestr module.
 
@@ -4368,11 +5781,11 @@
 
 	* man/po4a/po/da.po: Update from Translation Project.
 
-2014-09-28  Colin Watson  <cjwatson@debian.org>
+2014-09-27  Colin Watson  <cjwatson@debian.org>
 
 	* Version: 2.7.0.2.
 
-2014-09-28  Colin Watson  <cjwatson@debian.org>
+2014-09-27  Colin Watson  <cjwatson@debian.org>
 
 	Work around lack of UTIME_* on GNU/Hurd
 
@@ -4402,7 +5815,7 @@
 
 	* Makefile.am (EXTRA_DIST): Add gnulib/m4/sockpfaf.m4.
 
-2014-09-24  Colin Watson  <cjwatson@debian.org>
+2014-09-23  Colin Watson  <cjwatson@debian.org>
 
 	Fix tests when build fs does not support high-precision timestamps
 
@@ -4589,7 +6002,7 @@
 
 	* NEWS: Document a couple more changes since 2.6.7.1.
 
-2014-09-16  Colin Watson  <cjwatson@debian.org>
+2014-09-15  Colin Watson  <cjwatson@debian.org>
 
 	Merge convert_name into man.c
 
@@ -4603,11 +6016,11 @@
 	* po/POTFILES.in: Remove src/convert_name.c.
 	* po/man-db.pot, po/*.po: Update.
 
-2014-09-16  Colin Watson  <cjwatson@debian.org>
+2014-09-15  Colin Watson  <cjwatson@debian.org>
 
 	* tools/README: Update heading to reflect moves to build-aux.
 
-2014-09-16  Colin Watson  <cjwatson@debian.org>
+2014-09-15  Colin Watson  <cjwatson@debian.org>
 
 	Make a few libdb functions static
 
@@ -4617,7 +6030,7 @@
 	* libdb/db_storage.h (split_data, make_content, copy_if_set): Remove
 	prototypes.
 
-2014-09-16  Colin Watson  <cjwatson@debian.org>
+2014-09-15  Colin Watson  <cjwatson@debian.org>
 
 	Make various functions static
 
@@ -4629,14 +6042,14 @@
 	purge_catsubdirs, purge_catdirs): Likewise.
 	* src/zsoelim.l (try_compressed): Likewise.
 
-2014-09-16  Colin Watson  <cjwatson@debian.org>
+2014-09-15  Colin Watson  <cjwatson@debian.org>
 
 	Remove unused code in lexgrog
 
 	* src/lexgrog.l (rule_profile): Remove unused function and
 	associated global declarations.
 
-2014-09-16  Colin Watson  <cjwatson@debian.org>
+2014-09-15  Colin Watson  <cjwatson@debian.org>
 
 	Reorder functions in man to remove need for header file
 
@@ -4669,7 +6082,7 @@
 
 	* build-aux/config.sub: Upgrade to 2014-09-11.
 
-2014-09-13  Colin Watson  <cjwatson@debian.org>
+2014-09-12  Colin Watson  <cjwatson@debian.org>
 
 	Simplify <dirent.h> handling using Gnulib
 
@@ -4680,7 +6093,7 @@
 	* src/straycats.c: Likewise.
 	* src/ult_src.c: Likewise.
 
-2014-09-13  Colin Watson  <cjwatson@debian.org>
+2014-09-12  Colin Watson  <cjwatson@debian.org>
 
 	Remove old and broken FAST_BTREE code
 
@@ -4825,11 +6238,11 @@
 
 	* src/catman.c (parse_for_sec): Execute MAN rather than "man".
 
-2014-09-09  Colin Watson  <cjwatson@debian.org>
+2014-09-08  Colin Watson  <cjwatson@debian.org>
 
 	* man/po4a/po/da.po: Fix po4a syntax error.
 
-2014-09-09  Colin Watson  <cjwatson@debian.org>
+2014-09-08  Colin Watson  <cjwatson@debian.org>
 
 	Various autotools upgrades