From bb1309f1eb7651b41f2b6b7fb97ddb86bb82160c Mon Sep 17 00:00:00 2001 From: Paul Eggert Date: Wed, 7 Mar 2018 17:55:44 -0800 Subject: Update from Gnulib This includes: 2018-03-07 maint: write-file-hooks -> before-save-hook 2018-03-05 binary-io: pacify gcc -Wunused-parameter 2018-03-05 fflush: adjust to glibc 2.28 libio.h removal * build-aux/config.guess, build-aux/config.sub: * build-aux/gitlog-to-changelog, build-aux/install-sh: * build-aux/move-if-change, build-aux/update-copyright: * doc/misc/texinfo.tex, lib/binary-io.h, lib/fpending.c: * lib/stdio-impl.h: Copy from Gnulib. --- build-aux/install-sh | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'build-aux/install-sh') diff --git a/build-aux/install-sh b/build-aux/install-sh index ac159ceda40..5f3d36cb761 100755 --- a/build-aux/install-sh +++ b/build-aux/install-sh @@ -1,7 +1,7 @@ #!/bin/sh # install - install a program, script, or datafile -scriptversion=2017-09-23.17; # UTC +scriptversion=2018-03-07.03; # UTC # This originates from X11R5 (mit/util/scripts/install.sh), which was # later released in X11R6 (xc/config/util/install.sh) with the @@ -501,7 +501,7 @@ do done # Local variables: -# eval: (add-hook 'write-file-hooks 'time-stamp) +# eval: (add-hook 'before-save-hook 'time-stamp) # time-stamp-start: "scriptversion=" # time-stamp-format: "%:y-%02m-%02d.%02H" # time-stamp-time-zone: "UTC0" -- cgit v1.2.3 From 7ce25de888f285502898da13e689e4372fc6a49d Mon Sep 17 00:00:00 2001 From: Paul Eggert Date: Tue, 20 Mar 2018 09:26:09 -0700 Subject: Autoupdate from Gnulib --- build-aux/install-sh | 25 +++++++++++++++++-------- doc/misc/texinfo.tex | 6 +++--- m4/getloadavg.m4 | 4 ++-- 3 files changed, 22 insertions(+), 13 deletions(-) (limited to 'build-aux/install-sh') diff --git a/build-aux/install-sh b/build-aux/install-sh index 5f3d36cb761..8175c640fe6 100755 --- a/build-aux/install-sh +++ b/build-aux/install-sh @@ -1,7 +1,7 @@ #!/bin/sh # install - install a program, script, or datafile -scriptversion=2018-03-07.03; # UTC +scriptversion=2018-03-11.20; # UTC # This originates from X11R5 (mit/util/scripts/install.sh), which was # later released in X11R6 (xc/config/util/install.sh) with the @@ -332,34 +332,43 @@ do # is incompatible with FreeBSD 'install' when (umask & 300) != 0. ;; *) + # Note that $RANDOM variable is not portable (e.g. dash); Use it + # here however when possible just to lower collision chance. tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$ - trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0 + trap 'ret=$?; rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" 2>/dev/null; exit $ret' 0 + + # Because "mkdir -p" follows existing symlinks and we likely work + # directly in world-writeable /tmp, make sure that the '$tmpdir' + # directory is successfully created first before we actually test + # 'mkdir -p' feature. if (umask $mkdir_umask && - exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1 + $mkdirprog $mkdir_mode "$tmpdir" && + exec $mkdirprog $mkdir_mode -p -- "$tmpdir/a/b") >/dev/null 2>&1 then if test -z "$dir_arg" || { # Check for POSIX incompatibilities with -m. # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or # other-writable bit of parent directory when it shouldn't. # FreeBSD 6.1 mkdir -m -p sets mode of existing directory. - ls_ld_tmpdir=`ls -ld "$tmpdir"` + test_tmpdir="$tmpdir/a" + ls_ld_tmpdir=`ls -ld "$test_tmpdir"` case $ls_ld_tmpdir in d????-?r-*) different_mode=700;; d????-?--*) different_mode=755;; *) false;; esac && - $mkdirprog -m$different_mode -p -- "$tmpdir" && { - ls_ld_tmpdir_1=`ls -ld "$tmpdir"` + $mkdirprog -m$different_mode -p -- "$test_tmpdir" && { + ls_ld_tmpdir_1=`ls -ld "$test_tmpdir"` test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1" } } then posix_mkdir=: fi - rmdir "$tmpdir/d" "$tmpdir" + rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" else # Remove any dirs left behind by ancient mkdir implementations. - rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null + rmdir ./$mkdir_mode ./-p ./-- "$tmpdir" 2>/dev/null fi trap '' 0;; esac;; diff --git a/doc/misc/texinfo.tex b/doc/misc/texinfo.tex index ac5c1d922ec..aa4f256437e 100644 --- a/doc/misc/texinfo.tex +++ b/doc/misc/texinfo.tex @@ -3,7 +3,7 @@ % Load plain if necessary, i.e., if running under initex. \expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi % -\def\texinfoversion{2018-02-12.17} +\def\texinfoversion{2018-03-10.14} % % Copyright 1985, 1986, 1988, 1990, 1991, 1992, 1993, 1994, 1995, % 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, @@ -182,7 +182,7 @@ % Hyphenation fixes. \hyphenation{ Flor-i-da Ghost-script Ghost-view Mac-OS Post-Script - auto-ma-ti-cal-ly ap-pen-dix bit-map bit-maps + ap-pen-dix bit-map bit-maps data-base data-bases eshell fall-ing half-way long-est man-u-script man-u-scripts mini-buf-fer mini-buf-fers over-view par-a-digm par-a-digms rath-er rec-tan-gu-lar ro-bot-ics se-vere-ly set-up spa-ces @@ -11715,7 +11715,7 @@ directory should work if nowhere else does.} @markupsetuprqdefault @c Local variables: -@c eval: (add-hook 'write-file-hooks 'time-stamp) +@c eval: (add-hook 'before-save-hook 'time-stamp) @c page-delimiter: "^\\\\message\\|emacs-page" @c time-stamp-start: "def\\\\texinfoversion{" @c time-stamp-format: "%:y-%02m-%02d.%02H" diff --git a/m4/getloadavg.m4 b/m4/getloadavg.m4 index 7b6a09a5c5b..d3a8910ecfc 100644 --- a/m4/getloadavg.m4 +++ b/m4/getloadavg.m4 @@ -7,7 +7,7 @@ # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. -#serial 7 +#serial 8 # Autoconf defines AC_FUNC_GETLOADAVG, but that is obsolescent. # New applications should use gl_GETLOADAVG instead. @@ -22,7 +22,7 @@ AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) gl_save_LIBS=$LIBS -# getloadvg is present in libc on glibc >= 2.2, Mac OS X, FreeBSD >= 2.0, +# getloadavg is present in libc on glibc >= 2.2, Mac OS X, FreeBSD >= 2.0, # NetBSD >= 0.9, OpenBSD >= 2.0, Solaris >= 7. HAVE_GETLOADAVG=1 AC_CHECK_FUNC([getloadavg], [], -- cgit v1.2.3 From fda015e7b82a1ec3d1cb075799a67772744ce6c1 Mon Sep 17 00:00:00 2001 From: Paul Eggert Date: Mon, 2 Sep 2019 12:37:52 -0700 Subject: Update from Gnulib This incorporates: 2019-08-25 intprops.h, verify.h: port better to clang 2019-08-21 New strip-trailing-space option for srclist-update * .gitattributes: Remove doc/misc/texinfo.tex special case, which is no longer needed now that Gnulib trims blank-at-eol. * build-aux/install-sh, doc/misc/texinfo.tex, lib/intprops.h: * lib/regex_internal.c, lib/verify.h: Copy from Gnulib. --- .gitattributes | 3 - build-aux/install-sh | 13 ++- doc/misc/texinfo.tex | 220 +++++++++++++++++++++++++-------------------------- lib/intprops.h | 91 +++++++++++++-------- lib/regex_internal.c | 11 ++- lib/verify.h | 28 ++++--- 6 files changed, 208 insertions(+), 158 deletions(-) (limited to 'build-aux/install-sh') diff --git a/.gitattributes b/.gitattributes index 65a943f6954..e1fd4b12a8a 100644 --- a/.gitattributes +++ b/.gitattributes @@ -31,9 +31,6 @@ test/manual/etags/html-src/algrthms.html whitespace=cr-at-eol # The todo-mode file format includes trailing whitespace. *.tod[aorty] -whitespace=blank-at-eol -# The upstream maintainer does not want to remove trailing whitespace. -doc/misc/texinfo.tex -whitespace=blank-at-eol - # Some files should not be treated as text when diffing or merging. *.cur binary *.gpg binary diff --git a/build-aux/install-sh b/build-aux/install-sh index 8175c640fe6..20d8b2eaea9 100755 --- a/build-aux/install-sh +++ b/build-aux/install-sh @@ -451,7 +451,18 @@ do trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0 # Copy the file name to the temp name. - (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") && + (umask $cp_umask && + { test -z "$stripcmd" || { + # Create $dsttmp read-write so that cp doesn't create it read-only, + # which would cause strip to fail. + if test -z "$doit"; then + : >"$dsttmp" # No need to fork-exec 'touch'. + else + $doit touch "$dsttmp" + fi + } + } && + $doit_exec $cpprog "$src" "$dsttmp") && # and set any options; do chmod last to preserve setuid bits. # diff --git a/doc/misc/texinfo.tex b/doc/misc/texinfo.tex index ed3f0ee98f4..d2e895f3628 100644 --- a/doc/misc/texinfo.tex +++ b/doc/misc/texinfo.tex @@ -1,9 +1,9 @@ % texinfo.tex -- TeX macros to handle Texinfo files. -% +% % Load plain if necessary, i.e., if running under initex. \expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi % -\def\texinfoversion{2019-06-01.23} +\def\texinfoversion{2019-08-18.20} % % Copyright 1985, 1986, 1988, 1990-2019 Free Software Foundation, Inc. % @@ -218,7 +218,7 @@ % @errormsg{MSG}. Do the index-like expansions on MSG, but if things % aren't perfect, it's not the end of the world, being an error message, % after all. -% +% \def\errormsg{\begingroup \indexnofonts \doerrormsg} \def\doerrormsg#1{\errmessage{#1}} @@ -323,9 +323,9 @@ % the output routine. The saved contents are valid until we actually % \shipout a page. % -% (We used to run a short output routine to actually set \topmark and -% \firstmark to the right values, but if this was called with an empty page -% containing whatsits for writing index entries, the whatsits would be thrown +% (We used to run a short output routine to actually set \topmark and +% \firstmark to the right values, but if this was called with an empty page +% containing whatsits for writing index entries, the whatsits would be thrown % away and the index auxiliary file would remain empty.) % \newtoks\savedtopmark @@ -365,7 +365,7 @@ \let\thischapterheading\thischapter \else % \thischapterheading is the same as \thischapter except it is blank - % for the first page of a chapter. This is to prevent the chapter name + % for the first page of a chapter. This is to prevent the chapter name % being shown twice. \def\thischapterheading{}% \fi @@ -448,7 +448,7 @@ }% } -% First remove any @comment, then any @c comment. Pass the result on to +% First remove any @comment, then any @c comment. Pass the result on to % \argcheckspaces. \def\argremovecomment#1\comment#2\ArgTerm{\argremovec #1\c\ArgTerm} \def\argremovec#1\c#2\ArgTerm{\argcheckspaces#1\^^M\ArgTerm} @@ -1137,7 +1137,7 @@ where each line of input produces a line of output.} % for display in the outlines, and in other places. Thus, we have to % double any backslashes. Otherwise, a name like "\node" will be % interpreted as a newline (\n), followed by o, d, e. Not good. -% +% % See http://www.ntg.nl/pipermail/ntg-pdftex/2004-July/000654.html and % related messages. The final outcome is that it is up to the TeX user % to double the backslashes and otherwise make the string valid, so @@ -1442,7 +1442,7 @@ output) for that.)} % their "best" equivalent, based on the @documentencoding. Too % much work for too little return. Just use the ASCII equivalents % we use for the index sort strings. - % + % \indexnofonts \setupdatafile % We can have normal brace characters in the PDF outlines, unlike @@ -2726,7 +2726,7 @@ end } % Commands to set the quote options. -% +% \parseargdef\codequoteundirected{% \def\temp{#1}% \ifx\temp\onword @@ -2767,7 +2767,7 @@ end % If we are in a monospaced environment, however, 1) always use \ttsl, % and 2) do not add an italic correction. \def\dosmartslant#1#2{% - \ifusingtt + \ifusingtt {{\ttsl #2}\let\next=\relax}% {\def\next{{#1#2}\futurelet\next\smartitaliccorrection}}% \next @@ -2914,14 +2914,14 @@ end \gdef\codedash{\futurelet\next\codedashfinish} \gdef\codedashfinish{% \normaldash % always output the dash character itself. - % + % % Now, output a discretionary to allow a line break, unless % (a) the next character is a -, or % (b) the preceding character is a -. % E.g., given --posix, we do not want to allow a break after either -. % Given --foo-bar, we do want to allow a break between the - and the b. \ifx\next\codedash \else - \ifx\codedashprev\codedash + \ifx\codedashprev\codedash \else \discretionary{}{}{}\fi \fi % we need the space after the = for the case when \next itself is a @@ -3003,7 +3003,7 @@ end % For pdfTeX and LuaTeX \ifurefurlonlylink % PDF plus option to not display url, show just arg - \unhbox0 + \unhbox0 \else % PDF, normally display both arg and url for consistency, % visibility, if the pdf is eventually used to print, etc. @@ -3016,7 +3016,7 @@ end % For XeTeX \ifurefurlonlylink % PDF plus option to not display url, show just arg - \unhbox0 + \unhbox0 \else % PDF, normally display both arg and url for consistency, % visibility, if the pdf is eventually used to print, etc. @@ -3074,10 +3074,10 @@ end } } -% By default we'll break after the special characters, but some people like to -% break before the special chars, so allow that. Also allow no breaking at +% By default we'll break after the special characters, but some people like to +% break before the special chars, so allow that. Also allow no breaking at % all, for manual control. -% +% \parseargdef\urefbreakstyle{% \def\txiarg{#1}% \ifx\txiarg\wordnone @@ -3095,7 +3095,7 @@ end \def\wordbefore{before} \def\wordnone{none} -% Allow a ragged right output to aid breaking long URL's. Putting stretch in +% Allow a ragged right output to aid breaking long URL's. Putting stretch in % between characters of the URL doesn't look good. \def\urefallowbreak{% \hskip 0pt plus 4 em\relax @@ -3299,7 +3299,7 @@ end % @inlinefmt{FMTNAME,PROCESSED-TEXT} and @inlineraw{FMTNAME,RAW-TEXT}. % Ignore unless FMTNAME == tex; then it is like @iftex and @tex, % except specified as a normal braced arg, so no newlines to worry about. -% +% \def\outfmtnametex{tex} % \long\def\inlinefmt#1{\doinlinefmt #1,\finish} @@ -3307,7 +3307,7 @@ end \def\inlinefmtname{#1}% \ifx\inlinefmtname\outfmtnametex \ignorespaces #2\fi } -% +% % @inlinefmtifelse{FMTNAME,THEN-TEXT,ELSE-TEXT} expands THEN-TEXT if % FMTNAME is tex, else ELSE-TEXT. \long\def\inlinefmtifelse#1{\doinlinefmtifelse #1,,,\finish} @@ -3323,7 +3323,7 @@ end % *right* brace they would have to use a command anyway, so they may as % well use a command to get a left brace too. We could re-use the % delimiter character idea from \verb, but it seems like overkill. -% +% \long\def\inlineraw{\tex \doinlineraw} \long\def\doinlineraw#1{\doinlinerawtwo #1,\finish} \def\doinlinerawtwo#1,#2,\finish{% @@ -3600,7 +3600,7 @@ end % for non-CM glyphs. That is ec* for regular text and tc* for the text % companion symbols (LaTeX TS1 encoding). Both are part of the ec % package and follow the same conventions. -% +% \def\ecfont{\etcfont{e}} \def\tcfont{\etcfont{t}} % @@ -3672,7 +3672,7 @@ end after the title page.}}% \def\setshortcontentsaftertitlepage{% \errmessage{@setshortcontentsaftertitlepage has been removed as a Texinfo - command; move your @shortcontents and @contents commands if you + command; move your @shortcontents and @contents commands if you want the contents after the title page.}}% \parseargdef\shorttitlepage{% @@ -3727,7 +3727,7 @@ end % don't worry much about spacing, ragged right. This should be used % inside a \vbox, and fonts need to be set appropriately first. \par should % be specified before the end of the \vbox, since a vbox is a group. -% +% \def\raggedtitlesettings{% \rm \hyphenpenalty=10000 @@ -4350,7 +4350,7 @@ end } % multitable-only commands. -% +% % @headitem starts a heading row, which we typeset in bold. Assignments % have to be global since we are inside the implicit group of an % alignment entry. \everycr below resets \everytab so we don't have to @@ -4669,13 +4669,13 @@ end % Like \expandablevalue, but completely expandable (the \message in the % definition above operates at the execution level of TeX). Used when % writing to auxiliary files, due to the expansion that \write does. -% If flag is undefined, pass through an unexpanded @value command: maybe it +% If flag is undefined, pass through an unexpanded @value command: maybe it % will be set by the time it is read back in. % % NB flag names containing - or _ may not work here. \def\dummyvalue#1{% \expandafter\ifx\csname SET#1\endcsname\relax - \noexpand\value{#1}% + \string\value{#1}% \else \csname SET#1\endcsname \fi @@ -4693,7 +4693,7 @@ end % @ifset VAR ... @end ifset reads the `...' iff VAR has been defined % with @set. -% +% % To get the special treatment we need for `@end ifset,' we call % \makecond and then redefine. % @@ -4726,7 +4726,7 @@ end % without the @) is in fact defined. We can only feasibly check at the % TeX level, so something like `mathcode' is going to considered % defined even though it is not a Texinfo command. -% +% \makecond{ifcommanddefined} \def\ifcommanddefined{\parsearg{\doifcmddefined{\let\next=\ifcmddefinedfail}}} % @@ -4834,8 +4834,8 @@ end \def\docodeindex#1{\edef\indexname{#1}\parsearg\docodeindexxxx} \def\docodeindexxxx #1{\doind{\indexname}{\code{#1}}} - -% Used for the aux, toc and index files to prevent expansion of Texinfo + +% Used for the aux, toc and index files to prevent expansion of Texinfo % commands. % \def\atdummies{% @@ -5180,7 +5180,7 @@ end } \def\defglyph#1#2{\def#1##1{#2}} % see above - + % #1 is the index name, #2 is the entry text. @@ -5207,7 +5207,7 @@ end \ifx\suffix\indexisfl\def\suffix{f1}\fi % Open the file \immediate\openout\csname#1indfile\endcsname \jobname.\suffix - % Using \immediate above here prevents an object entering into the current + % Using \immediate above here prevents an object entering into the current % box, which could confound checks such as those in \safewhatsit for % preceding skips. \typeout{Writing index file \jobname.\suffix}% @@ -5259,7 +5259,7 @@ end \ifx\segment\isfinish \else % - % Fully expand the segment, throwing away any @sortas directives, and + % Fully expand the segment, throwing away any @sortas directives, and % trim spaces. \edef\trimmed{\segment}% \edef\trimmed{\expandafter\eatspaces\expandafter{\trimmed}}% @@ -5317,12 +5317,12 @@ end % the current value of \escapechar. \def\escapeisbackslash{\escapechar=`\\} -% Use \ in index files by default. texi2dvi didn't support @ as the escape -% character (as it checked for "\entry" in the files, and not "@entry"). When -% the new version of texi2dvi has had a chance to become more prevalent, then -% the escape character can change back to @ again. This should be an easy -% change to make now because both @ and \ are only used as escape characters in -% index files, never standing for themselves. +% Use \ in index files by default. texi2dvi didn't support @ as the escape +% character (as it checked for "\entry" in the files, and not "@entry"). When +% the new version of texi2dvi has had a chance to become more prevalent, then +% the escape character can change back to @ again. This should be an easy +% change to make now because both @ and \ are only used as escape characters in +% index files, never standing for themselves. % \set txiindexescapeisbackslash @@ -5342,7 +5342,7 @@ end \def\}{\rbracechar{}}% \uccode`\~=`\\ \uppercase{\def~{\backslashchar{}}}% % - % Split the entry into primary entry and any subentries, and get the index + % Split the entry into primary entry and any subentries, and get the index % sort key. \splitindexentry\indextext % @@ -5523,18 +5523,18 @@ end \uccode`\~=`\\ \uppercase{\if\noexpand~}\noexpand#1 \expandafter\ifx\csname SETtxiskipindexfileswithbackslash\endcsname\relax \errmessage{% -ERROR: A sorted index file in an obsolete format was skipped. +ERROR: A sorted index file in an obsolete format was skipped. To fix this problem, please upgrade your version of 'texi2dvi' or 'texi2pdf' to that at . -If you are using an old version of 'texindex' (part of the Texinfo +If you are using an old version of 'texindex' (part of the Texinfo distribution), you may also need to upgrade to a newer version (at least 6.0). You may be able to typeset the index if you run 'texindex \jobname.\indexname' yourself. -You could also try setting the 'txiindexescapeisbackslash' flag by +You could also try setting the 'txiindexescapeisbackslash' flag by running a command like -'texi2dvi -t "@set txiindexescapeisbackslash" \jobname.texi'. If you do +'texi2dvi -t "@set txiindexescapeisbackslash" \jobname.texi'. If you do this, Texinfo will try to use index files in the old format. -If you continue to have problems, deleting the index files and starting again +If you continue to have problems, deleting the index files and starting again might help (with 'rm \jobname.?? \jobname.??s')% }% \else @@ -5603,7 +5603,7 @@ might help (with 'rm \jobname.?? \jobname.??s')% % bottom of a column to reduce an increase in inter-line spacing. \nobreak \vskip 0pt plus 5\baselineskip - \penalty -300 + \penalty -300 \vskip 0pt plus -5\baselineskip % % Typeset the initial. Making this add up to a whole number of @@ -5719,7 +5719,7 @@ might help (with 'rm \jobname.?? \jobname.??s')% \advance\dimen@ii by 1\dimen@i \ifdim\wd\boxA > \dimen@ii % If the entry doesn't fit in one line \ifdim\dimen@ > 0.8\dimen@ii % due to long index text - % Try to split the text roughly evenly. \dimen@ will be the length of + % Try to split the text roughly evenly. \dimen@ will be the length of % the first line. \dimen@ = 0.7\dimen@ \dimen@ii = \hsize @@ -5927,7 +5927,7 @@ might help (with 'rm \jobname.?? \jobname.??s')% \newbox\balancedcolumns \setbox\balancedcolumns=\vbox{shouldnt see this}% % -% Only called for the last of the double column material. \doublecolumnout +% Only called for the last of the double column material. \doublecolumnout % does the others. \def\balancecolumns{% \setbox0 = \vbox{\unvbox\PAGE}% like \box255 but more efficient, see p.120. @@ -5955,7 +5955,7 @@ might help (with 'rm \jobname.?? \jobname.??s')% }% % Now the left column is in box 1, and the right column in box 3. % - % Check whether the left column has come out higher than the page itself. + % Check whether the left column has come out higher than the page itself. % (Note that we have doubled \vsize for the double columns, so % the actual height of the page is 0.5\vsize). \ifdim2\ht1>\vsize @@ -6252,7 +6252,7 @@ might help (with 'rm \jobname.?? \jobname.??s')% \let\top\unnumbered % Sections. -% +% \outer\parseargdef\numberedsec{\numhead1{#1}} % normally calls seczzz \def\seczzz#1{% \global\subsecno=0 \global\subsubsecno=0 \global\advance\secno by 1 @@ -6275,7 +6275,7 @@ might help (with 'rm \jobname.?? \jobname.??s')% } % Subsections. -% +% % normally calls numberedsubseczzz: \outer\parseargdef\numberedsubsec{\numhead2{#1}} \def\numberedsubseczzz#1{% @@ -6300,7 +6300,7 @@ might help (with 'rm \jobname.?? \jobname.??s')% } % Subsubsections. -% +% % normally numberedsubsubseczzz: \outer\parseargdef\numberedsubsubsec{\numhead3{#1}} \def\numberedsubsubseczzz#1{% @@ -7358,7 +7358,7 @@ might help (with 'rm \jobname.?? \jobname.??s')% % @indentedblock is like @quotation, but indents only on the left and % has no optional argument. -% +% \makedispenvdef{indentedblock}{\indentedblockstart} % \def\indentedblockstart{% @@ -7658,7 +7658,7 @@ might help (with 'rm \jobname.?? \jobname.??s')% % @deftypefnnewline on|off says whether the return type of typed functions % are printed on their own line. This affects @deftypefn, @deftypefun, % @deftypeop, and @deftypemethod. -% +% \parseargdef\deftypefnnewline{% \def\temp{#1}% \ifx\temp\onword @@ -7677,8 +7677,8 @@ might help (with 'rm \jobname.?? \jobname.??s')% % \dosubind {index}{topic}{subtopic} % % If SUBTOPIC is present, precede it with a space, and call \doind. -% (At some time during the 20th century, this made a two-level entry in an -% index such as the operation index. Nobody seemed to notice the change in +% (At some time during the 20th century, this made a two-level entry in an +% index such as the operation index. Nobody seemed to notice the change in % behaviour though.) \def\dosubind#1#2#3{% \def\thirdarg{#3}% @@ -7853,7 +7853,7 @@ might help (with 'rm \jobname.?? \jobname.??s')% \tclose{\temp}% typeset the return type \ifrettypeownline % put return type on its own line; prohibit line break following: - \hfil\vadjust{\nobreak}\break + \hfil\vadjust{\nobreak}\break \else \space % type on same line, so just followed by a space \fi @@ -8000,7 +8000,7 @@ might help (with 'rm \jobname.?? \jobname.??s')% \scantokens{#1@comment}% % % The \comment is to remove the \newlinechar added by \scantokens, and - % can be noticed by \parsearg. Note \c isn't used because this means cedilla + % can be noticed by \parsearg. Note \c isn't used because this means cedilla % in math mode. } @@ -8201,7 +8201,7 @@ might help (with 'rm \jobname.?? \jobname.??s')% % list to some hook where the argument is to be expanded. If there are % less than 10 arguments that hook is to be replaced by ##N where N % is the position in that list, that is to say the macro arguments are to be -% defined `a la TeX in the macro body. +% defined `a la TeX in the macro body. % % That gets used by \mbodybackslash (above). % @@ -8232,8 +8232,8 @@ might help (with 'rm \jobname.?? \jobname.??s')% % % Read recursive and nonrecursive macro bodies. (They're different since % rec and nonrec macros end differently.) -% -% We are in \macrobodyctxt, and the \xdef causes backslashshes in the macro +% +% We are in \macrobodyctxt, and the \xdef causes backslashshes in the macro % body to be transformed. % Set \macrobody to the body of the macro, and call \defmacro. % @@ -8267,7 +8267,7 @@ might help (with 'rm \jobname.?? \jobname.??s')% % twice the \macarg.BLAH macros does not cost too much processing power. \def\parsemmanyargdef@@#1,{% \if#1;\let\next=\relax - \else + \else \let\next=\parsemmanyargdef@@ \edef\tempb{\eatspaces{#1}}% \expandafter\def\expandafter\tempa @@ -8352,7 +8352,7 @@ might help (with 'rm \jobname.?? \jobname.??s')% % Replace arguments by their values in the macro body, and place the result % in macro \@tempa. -% +% \def\macvalstoargs@{% % To do this we use the property that token registers that are \the'ed % within an \edef expand only once. So we are going to place all argument @@ -8376,9 +8376,9 @@ might help (with 'rm \jobname.?? \jobname.??s')% \expandafter\def\expandafter\@tempa\expandafter{\@tempc}% } -% Define the named-macro outside of this group and then close this group. -% -\def\macargexpandinbody@{% +% Define the named-macro outside of this group and then close this group. +% +\def\macargexpandinbody@{% \expandafter \endgroup \macargdeflist@ @@ -8416,7 +8416,7 @@ might help (with 'rm \jobname.?? \jobname.??s')% } % Trailing missing arguments are set to empty. -% +% \def\setemptyargvalues@{% \ifx\paramlist\nilm@ \let\next\macargexpandinbody@ @@ -8493,7 +8493,7 @@ might help (with 'rm \jobname.?? \jobname.??s')% \else % at most 9 \ifnum\paramno<10\relax % @MACNAME sets the context for reading the macro argument - % @MACNAME@@ gets the argument, processes backslashes and appends a + % @MACNAME@@ gets the argument, processes backslashes and appends a % comma. % @MACNAME@@@ removes braces surrounding the argument list. % @MACNAME@@@@ scans the macro body with arguments substituted. @@ -8537,11 +8537,11 @@ might help (with 'rm \jobname.?? \jobname.??s')% % Call #1 with a list of tokens #2, with any doubled backslashes in #2 % compressed to one. % -% This implementation works by expansion, and not execution (so we cannot use -% \def or similar). This reduces the risk of this failing in contexts where -% complete expansion is done with no execution (for example, in writing out to +% This implementation works by expansion, and not execution (so we cannot use +% \def or similar). This reduces the risk of this failing in contexts where +% complete expansion is done with no execution (for example, in writing out to % an auxiliary file for an index entry). -% +% % State is kept in the input stream: the argument passed to % @look_ahead, @gobble_and_check_finish and @add_segment is % @@ -8563,11 +8563,11 @@ might help (with 'rm \jobname.?? \jobname.??s')% % #3 - NEXT_TOKEN % #4 used to look ahead % -% If the next token is not a backslash, process the rest of the argument; +% If the next token is not a backslash, process the rest of the argument; % otherwise, remove the next token. @gdef@look_ahead#1!#2#3#4{% @ifx#4\% - @expandafter@gobble_and_check_finish + @expandafter@gobble_and_check_finish @else @expandafter@add_segment @fi#1!{#2}#4#4% @@ -8591,9 +8591,9 @@ might help (with 'rm \jobname.?? \jobname.??s')% % #3 - NEXT_TOKEN % #4 is input stream until next backslash % -% Input stream is either at the start of the argument, or just after a -% backslash sequence, either a lone backslash, or a doubled backslash. -% NEXT_TOKEN contains the first token in the input stream: if it is \finish, +% Input stream is either at the start of the argument, or just after a +% backslash sequence, either a lone backslash, or a doubled backslash. +% NEXT_TOKEN contains the first token in the input stream: if it is \finish, % finish; otherwise, append to ARG_RESULT the segment of the argument up until % the next backslash. PENDING_BACKSLASH contains a backslash to represent % a backslash just before the start of the input stream that has not been @@ -8605,13 +8605,13 @@ might help (with 'rm \jobname.?? \jobname.??s')% % append the pending backslash to the result, followed by the next segment @expandafter@is_fi@look_ahead#1#2#4!{\}@fi % this @fi is discarded by @look_ahead. - % we can't get rid of it with \expandafter because we don't know how + % we can't get rid of it with \expandafter because we don't know how % long #4 is. } % #1 - THE_MACRO % #2 - ARG_RESULT -% #3 discards the res of the conditional in @add_segment, and @is_fi ends the +% #3 discards the res of the conditional in @add_segment, and @is_fi ends the % conditional. @gdef@call_the_macro#1#2!#3@fi{@is_fi #1{#2}} @@ -8623,7 +8623,7 @@ might help (with 'rm \jobname.?? \jobname.??s')% % for reading the argument (slightly different in the two cases). Then, % to read the argument, in the whole-line case, it then calls the regular % \parsearg MAC; in the lbrace case, it calls \passargtomacro MAC. -% +% \def\braceorline#1{\let\macnamexxx=#1\futurelet\nchar\braceorlinexxx} \def\braceorlinexxx{% \ifx\nchar\bgroup @@ -8677,7 +8677,7 @@ might help (with 'rm \jobname.?? \jobname.??s')% % Used so that the @top node doesn't have to be wrapped in an @ifnottex % conditional. -% \doignore goes to more effort to skip nested conditionals but we don't need +% \doignore goes to more effort to skip nested conditionals but we don't need % that here. \def\omittopnode{% \ifx\lastnode\wordTop @@ -8685,7 +8685,7 @@ might help (with 'rm \jobname.?? \jobname.??s')% } \def\wordTop{Top} -% Until the next @node or @bye command, divert output to a box that is not +% Until the next @node or @bye command, divert output to a box that is not % output. \def\ignorenode{\setbox\dummybox\vbox\bgroup\def\node{\egroup\node}% \ignorenodebye @@ -8752,7 +8752,7 @@ might help (with 'rm \jobname.?? \jobname.??s')% % automatically in xrefs, if the third arg is not explicitly specified. % This was provided as a "secret" @set xref-automatic-section-title % variable, now it's official. -% +% \parseargdef\xrefautomaticsectiontitle{% \def\temp{#1}% \ifx\temp\onword @@ -8768,7 +8768,7 @@ might help (with 'rm \jobname.?? \jobname.??s')% \fi\fi } -% +% % @xref, @pxref, and @ref generate cross-references. For \xrefX, #1 is % the node name, #2 the name of the Info cross-reference, #3 the printed % node name, #4 the name of the Info file, #5 the name of the printed @@ -8921,24 +8921,24 @@ might help (with 'rm \jobname.?? \jobname.??s')% \fi \else % node/anchor (non-float) references. - % + % % If we use \unhbox to print the node names, TeX does not insert % empty discretionaries after hyphens, which means that it will not % find a line break at a hyphen in a node names. Since some manuals % are best written with fairly long node names, containing hyphens, % this is a loss. Therefore, we give the text of the node name % again, so it is as if TeX is seeing it for the first time. - % + % \ifdim \wd\printedmanualbox > 0pt % Cross-manual reference with a printed manual name. - % + % \crossmanualxref{\cite{\printedmanual\unskip}}% % \else\ifdim \wd\infofilenamebox > 0pt % Cross-manual reference with only an info filename (arg 4), no % printed manual name (arg 5). This is essentially the same as % the case above; we output the filename, since we have nothing else. - % + % \crossmanualxref{\code{\infofilename\unskip}}% % \else @@ -8978,20 +8978,20 @@ might help (with 'rm \jobname.?? \jobname.??s')% \endgroup} % Output a cross-manual xref to #1. Used just above (twice). -% +% % Only include the text "Section ``foo'' in" if the foo is neither % missing or Top. Thus, @xref{,,,foo,The Foo Manual} outputs simply % "see The Foo Manual", the idea being to refer to the whole manual. -% +% % But, this being TeX, we can't easily compare our node name against the % string "Top" while ignoring the possible spaces before and after in % the input. By adding the arbitrary 7sp below, we make it much less % likely that a real node name would have the same width as "Top" (e.g., % in a monospaced font). Hopefully it will never happen in practice. -% +% % For the same basic reason, we retypeset the "Top" at every % reference, since the current font is indeterminate. -% +% \def\crossmanualxref#1{% \setbox\toprefbox = \hbox{Top\kern7sp}% \setbox2 = \hbox{\ignorespaces \printedrefname \unskip \kern7sp}% @@ -9038,7 +9038,7 @@ might help (with 'rm \jobname.?? \jobname.??s')% \fi\fi\fi } -% \refx{NAME}{SUFFIX} - reference a cross-reference string named NAME. SUFFIX +% \refx{NAME}{SUFFIX} - reference a cross-reference string named NAME. SUFFIX % is output afterwards if non-empty. \def\refx#1#2{% \requireauxfile @@ -9070,9 +9070,9 @@ might help (with 'rm \jobname.?? \jobname.??s')% #2% Output the suffix in any case. } -% This is the macro invoked by entries in the aux file. Define a control -% sequence for a cross-reference target (we prepend XR to the control sequence -% name to avoid collisions). The value is the page number. If this is a float +% This is the macro invoked by entries in the aux file. Define a control +% sequence for a cross-reference target (we prepend XR to the control sequence +% name to avoid collisions). The value is the page number. If this is a float % type, we have more work to do. % \def\xrdef#1#2{% @@ -9088,10 +9088,10 @@ might help (with 'rm \jobname.?? \jobname.??s')% \bgroup \expandafter\gdef\csname XR\safexrefname\endcsname{#2}% \egroup - % We put the \gdef inside a group to avoid the definitions building up on - % TeX's save stack, which can cause it to run out of space for aux files with + % We put the \gdef inside a group to avoid the definitions building up on + % TeX's save stack, which can cause it to run out of space for aux files with % thousands of lines. \gdef doesn't use the save stack, but \csname does - % when it defines an unknown control sequence as \relax. + % when it defines an unknown control sequence as \relax. % % Was that xref control sequence that we just defined for a float? \expandafter\iffloat\csname XR\safexrefname\endcsname @@ -9450,7 +9450,7 @@ might help (with 'rm \jobname.?? \jobname.??s')% % \ifimagevmode \medskip % space after a standalone image - \fi + \fi \ifx\centersub\centerV \egroup \fi \endgroup} @@ -10281,7 +10281,7 @@ directory should work if nowhere else does.} \uppercase{.} \endgroup \else - \errhelp = \EMsimple + \errhelp = \EMsimple \errmessage{Unicode character U+#1 not supported, sorry}% \fi \else @@ -10314,7 +10314,7 @@ directory should work if nowhere else does.} \countUTFz = "#1\relax \begingroup \parseXMLCharref - + % Give \u8:... its definition. The sequence of seven \expandafter's % expands after the \gdef three times, e.g. % @@ -10326,7 +10326,7 @@ directory should work if nowhere else does.} \expandafter\expandafter \expandafter\expandafter \expandafter\gdef \UTFviiiTmp{#2}% - % + % \expandafter\ifx\csname uni:#1\endcsname \relax \else \message{Internal error, already defined: #1}% \fi @@ -10365,7 +10365,7 @@ directory should work if nowhere else does.} \divide\countUTFz by 64 \countUTFy = \countUTFz % Save to be the future value of \countUTFz. \multiply\countUTFz by 64 - + % \countUTFz is now \countUTFx with the last 5 bits cleared. Subtract % in order to get the last five bits. \advance\countUTFx by -\countUTFz @@ -10400,7 +10400,7 @@ directory should work if nowhere else does.} % U+0080..U+00FF = https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block) % U+0100..U+017F = https://en.wikipedia.org/wiki/Latin_Extended-A % U+0180..U+024F = https://en.wikipedia.org/wiki/Latin_Extended-B -% +% % Many of our renditions are less than wonderful, and all the missing % characters are available somewhere. Loading the necessary fonts % awaits user request. We can't truly support Unicode without @@ -11438,9 +11438,9 @@ directory should work if nowhere else does.} \def\texinfochars{% \let< = \activeless \let> = \activegtr - \let~ = \activetilde + \let~ = \activetilde \let^ = \activehat - \markupsetuplqdefault \markupsetuprqdefault + \markupsetuplqdefault \markupsetuprqdefault \let\b = \strong \let\i = \smartitalic % in principle, all other definitions in \tex have to be undone too. diff --git a/lib/intprops.h b/lib/intprops.h index fe67c1f305f..36c6359a21f 100644 --- a/lib/intprops.h +++ b/lib/intprops.h @@ -22,6 +22,18 @@ #include +/* If the compiler lacks __has_builtin, define it well enough for this + source file only. */ +#ifndef __has_builtin +# define __has_builtin(x) _GL_HAS_##x +# if 5 <= __GNUC__ && !defined __ICC +# define _GL_HAS___builtin_add_overflow 1 +# else +# define _GL_HAS___builtin_add_overflow 0 +# endif +# define _GL_TEMPDEF___has_builtin +#endif + /* Return a value with the common real type of E and V and the value of V. Do not evaluate E. */ #define _GL_INT_CONVERT(e, v) ((1 ? 0 : (e)) + (v)) @@ -220,14 +232,24 @@ ? (a) < (min) >> (b) \ : (max) >> (b) < (a)) -/* True if __builtin_add_overflow (A, B, P) works when P is non-null. */ -#if 5 <= __GNUC__ && !defined __ICC -# define _GL_HAS_BUILTIN_OVERFLOW 1 +/* True if __builtin_add_overflow (A, B, P) and __builtin_sub_overflow + (A, B, P) work when P is non-null. */ +#if __has_builtin (__builtin_add_overflow) +# define _GL_HAS_BUILTIN_ADD_OVERFLOW 1 +#else +# define _GL_HAS_BUILTIN_ADD_OVERFLOW 0 +#endif + +/* True if __builtin_mul_overflow (A, B, P) works when P is non-null. */ +#ifdef __clang__ +/* Work around Clang bug . */ +# define _GL_HAS_BUILTIN_MUL_OVERFLOW 0 #else -# define _GL_HAS_BUILTIN_OVERFLOW 0 +# define _GL_HAS_BUILTIN_MUL_OVERFLOW _GL_HAS_BUILTIN_ADD_OVERFLOW #endif -/* True if __builtin_add_overflow_p (A, B, C) works. */ +/* True if __builtin_add_overflow_p (A, B, C) works, and similarly for + __builtin_mul_overflow_p and __builtin_mul_overflow_p. */ #define _GL_HAS_BUILTIN_OVERFLOW_P (7 <= __GNUC__) /* The _GL*_OVERFLOW macros have the same restrictions as the @@ -351,29 +373,33 @@ /* Store the low-order bits of A + B, A - B, A * B, respectively, into *R. Return 1 if the result overflows. See above for restrictions. */ -#define INT_ADD_WRAPV(a, b, r) \ - _GL_INT_OP_WRAPV (a, b, r, +, __builtin_add_overflow, \ - _GL_INT_ADD_RANGE_OVERFLOW) -#define INT_SUBTRACT_WRAPV(a, b, r) \ - _GL_INT_OP_WRAPV (a, b, r, -, __builtin_sub_overflow, \ - _GL_INT_SUBTRACT_RANGE_OVERFLOW) -#define INT_MULTIPLY_WRAPV(a, b, r) \ - _GL_INT_OP_WRAPV (a, b, r, *, _GL_BUILTIN_MUL_OVERFLOW, \ - _GL_INT_MULTIPLY_RANGE_OVERFLOW) - -/* Like __builtin_mul_overflow, but work around GCC bug 91450. */ -#define _GL_BUILTIN_MUL_OVERFLOW(a, b, r) \ - ((!_GL_SIGNED_TYPE_OR_EXPR (*(r)) && EXPR_SIGNED (a) && EXPR_SIGNED (b) \ - && _GL_INT_MULTIPLY_RANGE_OVERFLOW (a, b, 0, (__typeof__ (*(r))) -1)) \ - ? ((void) __builtin_mul_overflow (a, b, r), 1) \ - : __builtin_mul_overflow (a, b, r)) +#if _GL_HAS_BUILTIN_ADD_OVERFLOW +# define INT_ADD_WRAPV(a, b, r) __builtin_add_overflow (a, b, r) +# define INT_SUBTRACT_WRAPV(a, b, r) __builtin_sub_overflow (a, b, r) +#else +# define INT_ADD_WRAPV(a, b, r) \ + _GL_INT_OP_WRAPV (a, b, r, +, _GL_INT_ADD_RANGE_OVERFLOW) +# define INT_SUBTRACT_WRAPV(a, b, r) \ + _GL_INT_OP_WRAPV (a, b, r, -, _GL_INT_SUBTRACT_RANGE_OVERFLOW) +#endif +#if _GL_HAS_BUILTIN_MUL_OVERFLOW +/* Work around GCC bug 91450. */ +# define INT_MULTIPLY_WRAPV(a, b, r) \ + ((!_GL_SIGNED_TYPE_OR_EXPR (*(r)) && EXPR_SIGNED (a) && EXPR_SIGNED (b) \ + && _GL_INT_MULTIPLY_RANGE_OVERFLOW (a, b, 0, (__typeof__ (*(r))) -1)) \ + ? ((void) __builtin_mul_overflow (a, b, r), 1) \ + : __builtin_mul_overflow (a, b, r)) +#else +# define INT_MULTIPLY_WRAPV(a, b, r) \ + _GL_INT_OP_WRAPV (a, b, r, *, _GL_INT_MULTIPLY_RANGE_OVERFLOW) +#endif /* Nonzero if this compiler has GCC bug 68193 or Clang bug 25390. See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68193 https://llvm.org/bugs/show_bug.cgi?id=25390 For now, assume all versions of GCC-like compilers generate bogus - warnings for _Generic. This matters only for older compilers that - lack __builtin_add_overflow. */ + warnings for _Generic. This matters only for compilers that + lack relevant builtins. */ #if __GNUC__ # define _GL__GENERIC_BOGUS 1 #else @@ -381,13 +407,10 @@ #endif /* Store the low-order bits of A B into *R, where OP specifies - the operation. BUILTIN is the builtin operation, and OVERFLOW the - overflow predicate. Return 1 if the result overflows. See above - for restrictions. */ -#if _GL_HAS_BUILTIN_OVERFLOW -# define _GL_INT_OP_WRAPV(a, b, r, op, builtin, overflow) builtin (a, b, r) -#elif 201112 <= __STDC_VERSION__ && !_GL__GENERIC_BOGUS -# define _GL_INT_OP_WRAPV(a, b, r, op, builtin, overflow) \ + the operation and OVERFLOW the overflow predicate. Return 1 if the + result overflows. See above for restrictions. */ +#if 201112 <= __STDC_VERSION__ && !_GL__GENERIC_BOGUS +# define _GL_INT_OP_WRAPV(a, b, r, op, overflow) \ (_Generic \ (*(r), \ signed char: \ @@ -442,7 +465,7 @@ : (*(r) = _GL_INT_OP_WRAPV_VIA_UNSIGNED (a,b,op,unsigned,st), 0))) # endif -# define _GL_INT_OP_WRAPV(a, b, r, op, builtin, overflow) \ +# define _GL_INT_OP_WRAPV(a, b, r, op, overflow) \ (sizeof *(r) == sizeof (signed char) \ ? _GL_INT_OP_WRAPV_SMALLISH (a, b, r, op, overflow, \ signed char, SCHAR_MIN, SCHAR_MAX, \ @@ -563,4 +586,10 @@ : (tmin) / (a) < (b)) \ : (tmax) / (b) < (a))) +#ifdef _GL_TEMPDEF___has_builtin +# undef __has_builtin +# undef _GL_HAS___builtin_add_overflow +# undef _GL_TEMPDEF___has_builtin +#endif + #endif /* _GL_INTPROPS_H */ diff --git a/lib/regex_internal.c b/lib/regex_internal.c index b592f06725c..0092cc2a468 100644 --- a/lib/regex_internal.c +++ b/lib/regex_internal.c @@ -1311,7 +1311,6 @@ re_node_set_insert (re_node_set *set, Idx elem) first element separately to skip a check in the inner loop. */ if (elem < set->elems[0]) { - idx = 0; for (idx = set->nelem; idx > 0; idx--) set->elems[idx] = set->elems[idx - 1]; } @@ -1716,15 +1715,19 @@ create_cd_newstate (const re_dfa_t *dfa, const re_node_set *nodes, { if (newstate->entrance_nodes == &newstate->nodes) { - newstate->entrance_nodes = re_malloc (re_node_set, 1); - if (__glibc_unlikely (newstate->entrance_nodes == NULL)) + re_node_set *entrance_nodes = re_malloc (re_node_set, 1); + if (__glibc_unlikely (entrance_nodes == NULL)) { free_state (newstate); return NULL; } + newstate->entrance_nodes = entrance_nodes; if (re_node_set_init_copy (newstate->entrance_nodes, nodes) != REG_NOERROR) - return NULL; + { + free_state (newstate); + return NULL; + } nctx_nodes = 0; newstate->has_constraint = 1; } diff --git a/lib/verify.h b/lib/verify.h index afdc1ad81f1..06e975ebf65 100644 --- a/lib/verify.h +++ b/lib/verify.h @@ -56,6 +56,16 @@ # undef _Static_assert #endif +/* If the compiler lacks __has_builtin, define it well enough for this + source file only. */ +#ifndef __has_builtin +# define __has_builtin(x) _GL_HAS_##x +# define _GL_HAS___builtin_unreachable (4 < __GNUC__ + (5 <= __GNUC_MINOR__)) +# define _GL_HAS___builtin_trap \ + (3 < __GNUC__ + (3 < __GNUC_MINOR__ + (4 <= __GNUC_PATCHLEVEL__))) +# define _GL_TEMPDEF___has_builtin +#endif + /* Each of these macros verifies that its argument R is nonzero. To be portable, R should be an integer constant expression. Unlike assert (R), there is no run-time overhead. @@ -260,24 +270,17 @@ template # define verify(R) _GL_VERIFY (R, "verify (" #R ")", -) #endif -#ifndef __has_builtin -# define __has_builtin(x) 0 -#endif - /* Assume that R always holds. Behavior is undefined if R is false, fails to evaluate, or has side effects. Although assuming R can help a compiler generate better code or diagnostics, performance can suffer if R uses hard-to-optimize features such as function calls not inlined by the compiler. */ -#if (__has_builtin (__builtin_unreachable) \ - || 4 < __GNUC__ + (5 <= __GNUC_MINOR__)) +#if __has_builtin (__builtin_unreachable) # define assume(R) ((R) ? (void) 0 : __builtin_unreachable ()) #elif 1200 <= _MSC_VER # define assume(R) __assume (R) -#elif ((defined GCC_LINT || defined lint) \ - && (__has_builtin (__builtin_trap) \ - || 3 < __GNUC__ + (3 < __GNUC_MINOR__ + (4 <= __GNUC_PATCHLEVEL__)))) +#elif (defined GCC_LINT || defined lint) && __has_builtin (__builtin_trap) /* Doing it this way helps various packages when configured with --enable-gcc-warnings, which compiles with -Dlint. It's nicer when 'assume' silences warnings even with older GCCs. */ @@ -287,6 +290,13 @@ template # define assume(R) ((R) ? (void) 0 : /*NOTREACHED*/ (void) 0) #endif +#ifdef _GL_TEMPDEF___has_builtin +# undef __has_builtin +# undef _GL_HAS___builtin_unreachable +# undef _GL_HAS___builtin_trap +# undef _GL_TEMPDEF___has_builtin +#endif + /* @assert.h omit end@ */ #endif -- cgit v1.2.3 From 5d89a9c2846d32b4726faaf5c8652f3f23dc7d73 Mon Sep 17 00:00:00 2001 From: Paul Eggert Date: Thu, 30 Jul 2020 13:58:58 -0700 Subject: Update from Gnulib MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This incorporates: 2020-07-30 work around some Oracle Studio attribute bugs 2020-07-29 fsusage, regex, stat-size: remove Cray support 2020-07-26 inttypes: remove support for AIX 4 2020-07-26 gettimeofday: remove workaround for Mac OS X 10.0 2020-07-26 don't require gl_LOCALTIME_BUFFER_DEFAULTS 2020-07-26 alloca: remove Cray-2 and Cray Y-MP support 2020-07-26 libgmp: remove dependency on havelib 2020-07-26 libgmp: remove HAVE_GMP, LIB_GMP 2020-07-25 multiarch: prepare for x86_64+arm64 universal in macOS 11 2020-07-25 sigprocmask: small autoconf macro improvement 2020-07-25 small autoconf macro improvements 2020-07-24 timespec: remove dependence on ‘verify’ 2020-07-24 optimize a few more three-valued comparisons 2020-07-24 fix _GL_CMP parenthesization typo 2020-07-23 optimize three-valued comparison between integers 2020-07-24 doc: update for Mac OS X 10.13 2020-07-23 fchmodat, lchmod: use /proc on Cygwin 2020-07-21 inttypes: fix PRI*PTR and SCN*PTR on 64-bit native Windows 2020-07-12 libgmp: avoid warning when --without-libgmp is used 2020-07-12 libgmp: link to the correct shared library * lib/mini-gmp-gnulib.c: Ignore -Wsuggest-attribute=malloc only for * build-aux/config.guess, build-aux/config.sub: * build-aux/install-sh, doc/misc/texinfo.tex, lib/c-strcasecmp.c: * lib/c-strncasecmp.c, lib/fchmodat.c, lib/fsusage.c: * lib/gettimeofday.c, lib/inttypes.in.h, lib/lchmod.c: * lib/mini-gmp-gnulib.c, lib/nstrftime.c, lib/regex.h, lib/timespec.h: * m4/alloca.m4, m4/getgroups.m4, m4/gettimeofday.m4: * m4/gnulib-common.m4, m4/inttypes.m4, m4/libgmp.m4, m4/mktime.m4: * m4/multiarch.m4: Copy from Gnulib. * lib/gnulib.mk.in, m4/gnulib-comp.m4: Regenerate. * src/Makefile.in, test/Makefile.in (LIBGMP): Rename from LIB_GMP for compatibility with Gnulib. All uses changed. --- build-aux/config.guess | 5 +- build-aux/config.sub | 7 +- build-aux/install-sh | 115 ++++++------ doc/misc/texinfo.tex | 36 +++- lib/c-strcasecmp.c | 2 +- lib/c-strncasecmp.c | 2 +- lib/fchmodat.c | 2 +- lib/fsusage.c | 4 - lib/gettimeofday.c | 11 -- lib/gnulib.mk.in | 19 +- lib/inttypes.in.h | 462 +++++++++++++++++-------------------------------- lib/lchmod.c | 2 +- lib/mini-gmp-gnulib.c | 6 +- lib/nstrftime.c | 9 - lib/regex.h | 2 - lib/timespec.h | 41 +---- m4/alloca.m4 | 32 +--- m4/getgroups.m4 | 5 +- m4/gettimeofday.m4 | 61 +------ m4/gnulib-common.m4 | 37 +++- m4/gnulib-comp.m4 | 17 -- m4/inttypes.m4 | 18 +- m4/libgmp.m4 | 65 ++++--- m4/mktime.m4 | 35 ++-- m4/multiarch.m4 | 67 +++---- src/Makefile.in | 4 +- test/Makefile.in | 4 +- 27 files changed, 412 insertions(+), 658 deletions(-) (limited to 'build-aux/install-sh') diff --git a/build-aux/config.guess b/build-aux/config.guess index 92bfc33e296..e94095c5fbe 100755 --- a/build-aux/config.guess +++ b/build-aux/config.guess @@ -2,7 +2,7 @@ # Attempt to guess a canonical system name. # Copyright 1992-2020 Free Software Foundation, Inc. -timestamp='2020-04-26' +timestamp='2020-07-12' # This file is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by @@ -1342,6 +1342,9 @@ EOF *:Rhapsody:*:*) echo "$UNAME_MACHINE"-apple-rhapsody"$UNAME_RELEASE" exit ;; + arm64:Darwin:*:*) + echo aarch64-apple-darwin"$UNAME_RELEASE" + exit ;; *:Darwin:*:*) UNAME_PROCESSOR=`uname -p` case $UNAME_PROCESSOR in diff --git a/build-aux/config.sub b/build-aux/config.sub index ce89d5c546c..3d9a8dc3d5a 100755 --- a/build-aux/config.sub +++ b/build-aux/config.sub @@ -2,7 +2,7 @@ # Configuration validation subroutine script. # Copyright 1992-2020 Free Software Foundation, Inc. -timestamp='2020-06-28' +timestamp='2020-07-10' # This file is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by @@ -1104,6 +1104,9 @@ case $cpu-$vendor in xscale-* | xscalee[bl]-*) cpu=`echo "$cpu" | sed 's/^xscale/arm/'` ;; + arm64-*) + cpu=aarch64 + ;; # Recognize the canonical CPU Types that limit and/or modify the # company names they are paired with. @@ -1163,7 +1166,7 @@ case $cpu-$vendor in | am33_2.0 \ | amdgcn \ | arc | arceb \ - | arm | arm[lb]e | arme[lb] | armv* \ + | arm | arm[lb]e | arme[lb] | armv* \ | avr | avr32 \ | asmjs \ | ba \ diff --git a/build-aux/install-sh b/build-aux/install-sh index 20d8b2eaea9..b34a8fc5ab9 100755 --- a/build-aux/install-sh +++ b/build-aux/install-sh @@ -1,7 +1,7 @@ #!/bin/sh # install - install a program, script, or datafile -scriptversion=2018-03-11.20; # UTC +scriptversion=2020-07-26.22; # UTC # This originates from X11R5 (mit/util/scripts/install.sh), which was # later released in X11R6 (xc/config/util/install.sh) with the @@ -69,6 +69,10 @@ posix_mkdir= # Desired mode of installed file. mode=0755 +# Create dirs (including intermediate dirs) using mode 755. +# This is like GNU 'install' as of coreutils 8.32 (2020). +mkdir_umask=22 + chgrpcmd= chmodcmd=$chmodprog chowncmd= @@ -301,22 +305,6 @@ do if test $dstdir_status != 0; then case $posix_mkdir in '') - # Create intermediate dirs using mode 755 as modified by the umask. - # This is like FreeBSD 'install' as of 1997-10-28. - umask=`umask` - case $stripcmd.$umask in - # Optimize common cases. - *[2367][2367]) mkdir_umask=$umask;; - .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;; - - *[0-7]) - mkdir_umask=`expr $umask + 22 \ - - $umask % 100 % 40 + $umask % 20 \ - - $umask % 10 % 4 + $umask % 2 - `;; - *) mkdir_umask=$umask,go-w;; - esac - # With -d, create the new directory with the user-specified mode. # Otherwise, rely on $mkdir_umask. if test -n "$dir_arg"; then @@ -326,52 +314,49 @@ do fi posix_mkdir=false - case $umask in - *[123567][0-7][0-7]) - # POSIX mkdir -p sets u+wx bits regardless of umask, which - # is incompatible with FreeBSD 'install' when (umask & 300) != 0. - ;; - *) - # Note that $RANDOM variable is not portable (e.g. dash); Use it - # here however when possible just to lower collision chance. - tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$ - - trap 'ret=$?; rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" 2>/dev/null; exit $ret' 0 - - # Because "mkdir -p" follows existing symlinks and we likely work - # directly in world-writeable /tmp, make sure that the '$tmpdir' - # directory is successfully created first before we actually test - # 'mkdir -p' feature. - if (umask $mkdir_umask && - $mkdirprog $mkdir_mode "$tmpdir" && - exec $mkdirprog $mkdir_mode -p -- "$tmpdir/a/b") >/dev/null 2>&1 - then - if test -z "$dir_arg" || { - # Check for POSIX incompatibilities with -m. - # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or - # other-writable bit of parent directory when it shouldn't. - # FreeBSD 6.1 mkdir -m -p sets mode of existing directory. - test_tmpdir="$tmpdir/a" - ls_ld_tmpdir=`ls -ld "$test_tmpdir"` - case $ls_ld_tmpdir in - d????-?r-*) different_mode=700;; - d????-?--*) different_mode=755;; - *) false;; - esac && - $mkdirprog -m$different_mode -p -- "$test_tmpdir" && { - ls_ld_tmpdir_1=`ls -ld "$test_tmpdir"` - test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1" - } - } - then posix_mkdir=: - fi - rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" - else - # Remove any dirs left behind by ancient mkdir implementations. - rmdir ./$mkdir_mode ./-p ./-- "$tmpdir" 2>/dev/null - fi - trap '' 0;; - esac;; + # The $RANDOM variable is not portable (e.g., dash). Use it + # here however when possible just to lower collision chance. + tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$ + + trap ' + ret=$? + rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" 2>/dev/null + exit $ret + ' 0 + + # Because "mkdir -p" follows existing symlinks and we likely work + # directly in world-writeable /tmp, make sure that the '$tmpdir' + # directory is successfully created first before we actually test + # 'mkdir -p'. + if (umask $mkdir_umask && + $mkdirprog $mkdir_mode "$tmpdir" && + exec $mkdirprog $mkdir_mode -p -- "$tmpdir/a/b") >/dev/null 2>&1 + then + if test -z "$dir_arg" || { + # Check for POSIX incompatibilities with -m. + # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or + # other-writable bit of parent directory when it shouldn't. + # FreeBSD 6.1 mkdir -m -p sets mode of existing directory. + test_tmpdir="$tmpdir/a" + ls_ld_tmpdir=`ls -ld "$test_tmpdir"` + case $ls_ld_tmpdir in + d????-?r-*) different_mode=700;; + d????-?--*) different_mode=755;; + *) false;; + esac && + $mkdirprog -m$different_mode -p -- "$test_tmpdir" && { + ls_ld_tmpdir_1=`ls -ld "$test_tmpdir"` + test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1" + } + } + then posix_mkdir=: + fi + rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" + else + # Remove any dirs left behind by ancient mkdir implementations. + rmdir ./$mkdir_mode ./-p ./-- "$tmpdir" 2>/dev/null + fi + trap '' 0;; esac if @@ -382,7 +367,7 @@ do then : else - # The umask is ridiculous, or mkdir does not conform to POSIX, + # mkdir does not conform to POSIX, # or it failed possibly due to a race condition. Create the # directory the slow way, step by step, checking for races as we go. @@ -411,7 +396,7 @@ do prefixes= else if $posix_mkdir; then - (umask=$mkdir_umask && + (umask $mkdir_umask && $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break # Don't fail if two instances are running concurrently. test -d "$prefix" || exit 1 diff --git a/doc/misc/texinfo.tex b/doc/misc/texinfo.tex index d3136db38aa..0d2a1fdbc8f 100644 --- a/doc/misc/texinfo.tex +++ b/doc/misc/texinfo.tex @@ -3,7 +3,7 @@ % Load plain if necessary, i.e., if running under initex. \expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi % -\def\texinfoversion{2020-05-22.11} +\def\texinfoversion{2020-06-25.17} % % Copyright 1985, 1986, 1988, 1990-2020 Free Software Foundation, Inc. % @@ -4922,7 +4922,7 @@ end % like the previous two, but they put @code around the argument. \def\docodeindex#1{\edef\indexname{#1}\parsearg\docodeindexxxx} -\def\docodeindexxxx #1{\doind{\indexname}{\code{#1}}} +\def\docodeindexxxx #1{\docind{\indexname}{#1}} % Used for the aux, toc and index files to prevent expansion of Texinfo @@ -5294,6 +5294,20 @@ end \fi } +% Same as \doind, but for code indices +\def\docind#1#2{% + \iflinks + {% + % + \requireopenindexfile{#1}% + \edef\writeto{\csname#1indfile\endcsname}% + % + \def\indextext{#2}% + \safewhatsit\docindwrite + }% + \fi +} + % Check if an index file has been opened, and if not, open it. \def\requireopenindexfile#1{% \ifnum\csname #1indfile\endcsname=0 @@ -5360,6 +5374,9 @@ end % trim spaces. \edef\trimmed{\segment}% \edef\trimmed{\expandafter\eatspaces\expandafter{\trimmed}}% + \ifincodeindex + \edef\trimmed{\noexpand\code{\trimmed}}% + \fi % \xdef\bracedtext{\bracedtext{\trimmed}}% % @@ -5425,7 +5442,12 @@ end % Write the entry in \indextext to the index file. % -\def\doindwrite{% + +\newif\ifincodeindex +\def\doindwrite{\incodeindexfalse\doindwritex} +\def\docindwrite{\incodeindextrue\doindwritex} + +\def\doindwritex{% \maybemarginindex % \atdummies @@ -5645,7 +5667,11 @@ might help (with 'rm \jobname.?? \jobname.??s')% \else \begindoublecolumns \catcode`\\=0\relax - \catcode`\@=12\relax + % + % Make @ an escape character to give macros a chance to work. This + % should work because we (hopefully) don't otherwise use @ in index files. + %\catcode`\@=12\relax + \catcode`\@=0\relax \input \jobname.\indexname s \enddoublecolumns \fi @@ -7562,7 +7588,7 @@ might help (with 'rm \jobname.?? \jobname.??s')% \let\nonarrowing = t% \nonfillstart \tt % easiest (and conventionally used) font for verbatim - \def\par{\egroup\box\verbbox\endgraf\starttabbox}% + \def\par{\egroup\leavevmode\box\verbbox\endgraf\starttabbox}% \tabexpand \setupmarkupstyle{verbatim}% % Respect line breaks, diff --git a/lib/c-strcasecmp.c b/lib/c-strcasecmp.c index 951220f3e29..f1a4b98fa55 100644 --- a/lib/c-strcasecmp.c +++ b/lib/c-strcasecmp.c @@ -52,5 +52,5 @@ c_strcasecmp (const char *s1, const char *s2) /* On machines where 'char' and 'int' are types of the same size, the difference of two 'unsigned char' values - including the sign bit - doesn't fit in an 'int'. */ - return (c1 > c2 ? 1 : c1 < c2 ? -1 : 0); + return _GL_CMP (c1, c2); } diff --git a/lib/c-strncasecmp.c b/lib/c-strncasecmp.c index 9ad49191b7f..1d6e1411a67 100644 --- a/lib/c-strncasecmp.c +++ b/lib/c-strncasecmp.c @@ -52,5 +52,5 @@ c_strncasecmp (const char *s1, const char *s2, size_t n) /* On machines where 'char' and 'int' are types of the same size, the difference of two 'unsigned char' values - including the sign bit - doesn't fit in an 'int'. */ - return (c1 > c2 ? 1 : c1 < c2 ? -1 : 0); + return _GL_CMP (c1, c2); } diff --git a/lib/fchmodat.c b/lib/fchmodat.c index 8950168608f..eee0a1c56e4 100644 --- a/lib/fchmodat.c +++ b/lib/fchmodat.c @@ -98,7 +98,7 @@ fchmodat (int dir, char const *file, mode_t mode, int flags) return -1; } -# if defined __linux__ || defined __ANDROID__ +# if defined __linux__ || defined __ANDROID__ || defined __CYGWIN__ static char const fmt[] = "/proc/self/fd/%d"; char buf[sizeof fmt - sizeof "%d" + INT_BUFSIZE_BOUND (int)]; sprintf (buf, fmt, fd); diff --git a/lib/fsusage.c b/lib/fsusage.c index 81960152d41..85bfe0e2837 100644 --- a/lib/fsusage.c +++ b/lib/fsusage.c @@ -211,11 +211,7 @@ get_fs_usage (char const *file, char const *disk, struct fs_usage *fsp) /* Empirically, the block counts on most SVR3 and SVR3-derived systems seem to always be in terms of 512-byte blocks, no matter what value f_bsize has. */ -# if defined _CRAY - fsp->fsu_blocksize = PROPAGATE_ALL_ONES (fsd.f_bsize); -# else fsp->fsu_blocksize = 512; -# endif #endif diff --git a/lib/gettimeofday.c b/lib/gettimeofday.c index 057cebdb163..5301e7c144a 100644 --- a/lib/gettimeofday.c +++ b/lib/gettimeofday.c @@ -29,8 +29,6 @@ # include #endif -#include "localtime-buffer.h" - #ifdef WINDOWS_NATIVE /* Don't assume that UNICODE is not defined. */ @@ -123,11 +121,6 @@ gettimeofday (struct timeval *restrict tv, void *restrict tz) #else # if HAVE_GETTIMEOFDAY -# if GETTIMEOFDAY_CLOBBERS_LOCALTIME - /* Save and restore the contents of the buffer used for localtime's - result around the call to gettimeofday. */ - struct tm save = *localtime_buffer_addr; -# endif # if defined timeval /* 'struct timeval' overridden by gnulib? */ # undef timeval @@ -142,10 +135,6 @@ gettimeofday (struct timeval *restrict tv, void *restrict tz) int result = gettimeofday (tv, (struct timezone *) tz); # endif -# if GETTIMEOFDAY_CLOBBERS_LOCALTIME - *localtime_buffer_addr = save; -# endif - return result; # else diff --git a/lib/gnulib.mk.in b/lib/gnulib.mk.in index 68cae8faf74..4dc180d2e33 100644 --- a/lib/gnulib.mk.in +++ b/lib/gnulib.mk.in @@ -587,6 +587,7 @@ HAVE_INITSTATE = @HAVE_INITSTATE@ HAVE_INTTYPES_H = @HAVE_INTTYPES_H@ HAVE_LCHMOD = @HAVE_LCHMOD@ HAVE_LCHOWN = @HAVE_LCHOWN@ +HAVE_LIBGMP = @HAVE_LIBGMP@ HAVE_LINK = @HAVE_LINK@ HAVE_LINKAT = @HAVE_LINKAT@ HAVE_LSTAT = @HAVE_LSTAT@ @@ -721,6 +722,7 @@ LD_SWITCH_SYSTEM_TEMACS = @LD_SWITCH_SYSTEM_TEMACS@ LD_SWITCH_X_SITE = @LD_SWITCH_X_SITE@ LD_SWITCH_X_SITE_RPATH = @LD_SWITCH_X_SITE_RPATH@ LIBGIF = @LIBGIF@ +LIBGMP = @LIBGMP@ LIBGNUTLS_CFLAGS = @LIBGNUTLS_CFLAGS@ LIBGNUTLS_LIBS = @LIBGNUTLS_LIBS@ LIBGNU_LIBDEPS = @LIBGNU_LIBDEPS@ @@ -761,7 +763,6 @@ LIB_CLOCK_GETTIME = @LIB_CLOCK_GETTIME@ LIB_EACCESS = @LIB_EACCESS@ LIB_EXECINFO = @LIB_EXECINFO@ LIB_GETRANDOM = @LIB_GETRANDOM@ -LIB_GMP = @LIB_GMP@ LIB_MATH = @LIB_MATH@ LIB_PTHREAD = @LIB_PTHREAD@ LIB_PTHREAD_SIGMASK = @LIB_PTHREAD_SIGMASK@ @@ -769,6 +770,7 @@ LIB_TIMER_TIME = @LIB_TIMER_TIME@ LIB_WSOCK32 = @LIB_WSOCK32@ LIMITS_H = @LIMITS_H@ LN_S_FILEONLY = @LN_S_FILEONLY@ +LTLIBGMP = @LTLIBGMP@ LTLIBINTL = @LTLIBINTL@ LTLIBOBJS = @LTLIBOBJS@ M17N_FLT_CFLAGS = @M17N_FLT_CFLAGS@ @@ -848,7 +850,6 @@ PRAGMA_COLUMNS = @PRAGMA_COLUMNS@ PRAGMA_SYSTEM_HEADER = @PRAGMA_SYSTEM_HEADER@ PRE_ALLOC_OBJ = @PRE_ALLOC_OBJ@ PRIPTR_PREFIX = @PRIPTR_PREFIX@ -PRI_MACROS_BROKEN = @PRI_MACROS_BROKEN@ PROFILING_CFLAGS = @PROFILING_CFLAGS@ PTHREAD_H_DEFINES_STRUCT_TIMESPEC = @PTHREAD_H_DEFINES_STRUCT_TIMESPEC@ PTRDIFF_T_SUFFIX = @PTRDIFF_T_SUFFIX@ @@ -1963,7 +1964,6 @@ inttypes.h: inttypes.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(WARN_ON_U -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \ -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \ -e 's|@''NEXT_INTTYPES_H''@|$(NEXT_INTTYPES_H)|g' \ - -e 's/@''PRI_MACROS_BROKEN''@/$(PRI_MACROS_BROKEN)/g' \ -e 's/@''APPLE_UNIVERSAL_BUILD''@/$(APPLE_UNIVERSAL_BUILD)/g' \ -e 's/@''PRIPTR_PREFIX''@/$(PRIPTR_PREFIX)/g' \ -e 's/@''GNULIB_IMAXABS''@/$(GNULIB_IMAXABS)/g' \ @@ -2069,19 +2069,6 @@ EXTRA_DIST += limits.in.h endif ## end gnulib module limits-h -## begin gnulib module localtime-buffer -ifeq (,$(OMIT_GNULIB_MODULE_localtime-buffer)) - -ifneq (,$(gl_GNULIB_ENABLED_2049e887c7e5308faad27b3f894bb8c9)) - -endif -EXTRA_DIST += localtime-buffer.c localtime-buffer.h - -EXTRA_libgnu_a_SOURCES += localtime-buffer.c - -endif -## end gnulib module localtime-buffer - ## begin gnulib module lstat ifeq (,$(OMIT_GNULIB_MODULE_lstat)) diff --git a/lib/inttypes.in.h b/lib/inttypes.in.h index 9f04a6ced4a..596a050458b 100644 --- a/lib/inttypes.in.h +++ b/lib/inttypes.in.h @@ -78,110 +78,92 @@ # define _LONG_LONG_FORMAT_PREFIX "ll" #endif -#if !defined PRId8 || @PRI_MACROS_BROKEN@ -# undef PRId8 +#if !defined PRId8 # ifdef INT8_MAX # define PRId8 "d" # endif #endif -#if !defined PRIi8 || @PRI_MACROS_BROKEN@ -# undef PRIi8 +#if !defined PRIi8 # ifdef INT8_MAX # define PRIi8 "i" # endif #endif -#if !defined PRIo8 || @PRI_MACROS_BROKEN@ -# undef PRIo8 +#if !defined PRIo8 # ifdef UINT8_MAX # define PRIo8 "o" # endif #endif -#if !defined PRIu8 || @PRI_MACROS_BROKEN@ -# undef PRIu8 +#if !defined PRIu8 # ifdef UINT8_MAX # define PRIu8 "u" # endif #endif -#if !defined PRIx8 || @PRI_MACROS_BROKEN@ -# undef PRIx8 +#if !defined PRIx8 # ifdef UINT8_MAX # define PRIx8 "x" # endif #endif -#if !defined PRIX8 || @PRI_MACROS_BROKEN@ -# undef PRIX8 +#if !defined PRIX8 # ifdef UINT8_MAX # define PRIX8 "X" # endif #endif -#if !defined PRId16 || @PRI_MACROS_BROKEN@ -# undef PRId16 +#if !defined PRId16 # ifdef INT16_MAX # define PRId16 "d" # endif #endif -#if !defined PRIi16 || @PRI_MACROS_BROKEN@ -# undef PRIi16 +#if !defined PRIi16 # ifdef INT16_MAX # define PRIi16 "i" # endif #endif -#if !defined PRIo16 || @PRI_MACROS_BROKEN@ -# undef PRIo16 +#if !defined PRIo16 # ifdef UINT16_MAX # define PRIo16 "o" # endif #endif -#if !defined PRIu16 || @PRI_MACROS_BROKEN@ -# undef PRIu16 +#if !defined PRIu16 # ifdef UINT16_MAX # define PRIu16 "u" # endif #endif -#if !defined PRIx16 || @PRI_MACROS_BROKEN@ -# undef PRIx16 +#if !defined PRIx16 # ifdef UINT16_MAX # define PRIx16 "x" # endif #endif -#if !defined PRIX16 || @PRI_MACROS_BROKEN@ -# undef PRIX16 +#if !defined PRIX16 # ifdef UINT16_MAX # define PRIX16 "X" # endif #endif -#if !defined PRId32 || @PRI_MACROS_BROKEN@ -# undef PRId32 +#if !defined PRId32 # ifdef INT32_MAX # define PRId32 "d" # endif #endif -#if !defined PRIi32 || @PRI_MACROS_BROKEN@ -# undef PRIi32 +#if !defined PRIi32 # ifdef INT32_MAX # define PRIi32 "i" # endif #endif -#if !defined PRIo32 || @PRI_MACROS_BROKEN@ -# undef PRIo32 +#if !defined PRIo32 # ifdef UINT32_MAX # define PRIo32 "o" # endif #endif -#if !defined PRIu32 || @PRI_MACROS_BROKEN@ -# undef PRIu32 +#if !defined PRIu32 # ifdef UINT32_MAX # define PRIu32 "u" # endif #endif -#if !defined PRIx32 || @PRI_MACROS_BROKEN@ -# undef PRIx32 +#if !defined PRIx32 # ifdef UINT32_MAX # define PRIx32 "x" # endif #endif -#if !defined PRIX32 || @PRI_MACROS_BROKEN@ -# undef PRIX32 +#if !defined PRIX32 # ifdef UINT32_MAX # define PRIX32 "X" # endif @@ -194,12 +176,10 @@ # elif LONG_MAX >> 30 == 1 # define _PRI64_PREFIX _LONG_LONG_FORMAT_PREFIX # endif -# if !defined PRId64 || @PRI_MACROS_BROKEN@ -# undef PRId64 +# if !defined PRId64 # define PRId64 _PRI64_PREFIX "d" # endif -# if !defined PRIi64 || @PRI_MACROS_BROKEN@ -# undef PRIi64 +# if !defined PRIi64 # define PRIi64 _PRI64_PREFIX "i" # endif #endif @@ -211,263 +191,217 @@ # elif ULONG_MAX >> 31 == 1 # define _PRIu64_PREFIX _LONG_LONG_FORMAT_PREFIX # endif -# if !defined PRIo64 || @PRI_MACROS_BROKEN@ -# undef PRIo64 +# if !defined PRIo64 # define PRIo64 _PRIu64_PREFIX "o" # endif -# if !defined PRIu64 || @PRI_MACROS_BROKEN@ -# undef PRIu64 +# if !defined PRIu64 # define PRIu64 _PRIu64_PREFIX "u" # endif -# if !defined PRIx64 || @PRI_MACROS_BROKEN@ -# undef PRIx64 +# if !defined PRIx64 # define PRIx64 _PRIu64_PREFIX "x" # endif -# if !defined PRIX64 || @PRI_MACROS_BROKEN@ -# undef PRIX64 +# if !defined PRIX64 # define PRIX64 _PRIu64_PREFIX "X" # endif #endif -#if !defined PRIdLEAST8 || @PRI_MACROS_BROKEN@ -# undef PRIdLEAST8 +#if !defined PRIdLEAST8 # define PRIdLEAST8 "d" #endif -#if !defined PRIiLEAST8 || @PRI_MACROS_BROKEN@ -# undef PRIiLEAST8 +#if !defined PRIiLEAST8 # define PRIiLEAST8 "i" #endif -#if !defined PRIoLEAST8 || @PRI_MACROS_BROKEN@ -# undef PRIoLEAST8 +#if !defined PRIoLEAST8 # define PRIoLEAST8 "o" #endif -#if !defined PRIuLEAST8 || @PRI_MACROS_BROKEN@ -# undef PRIuLEAST8 +#if !defined PRIuLEAST8 # define PRIuLEAST8 "u" #endif -#if !defined PRIxLEAST8 || @PRI_MACROS_BROKEN@ -# undef PRIxLEAST8 +#if !defined PRIxLEAST8 # define PRIxLEAST8 "x" #endif -#if !defined PRIXLEAST8 || @PRI_MACROS_BROKEN@ -# undef PRIXLEAST8 +#if !defined PRIXLEAST8 # define PRIXLEAST8 "X" #endif -#if !defined PRIdLEAST16 || @PRI_MACROS_BROKEN@ -# undef PRIdLEAST16 +#if !defined PRIdLEAST16 # define PRIdLEAST16 "d" #endif -#if !defined PRIiLEAST16 || @PRI_MACROS_BROKEN@ -# undef PRIiLEAST16 +#if !defined PRIiLEAST16 # define PRIiLEAST16 "i" #endif -#if !defined PRIoLEAST16 || @PRI_MACROS_BROKEN@ -# undef PRIoLEAST16 +#if !defined PRIoLEAST16 # define PRIoLEAST16 "o" #endif -#if !defined PRIuLEAST16 || @PRI_MACROS_BROKEN@ -# undef PRIuLEAST16 +#if !defined PRIuLEAST16 # define PRIuLEAST16 "u" #endif -#if !defined PRIxLEAST16 || @PRI_MACROS_BROKEN@ -# undef PRIxLEAST16 +#if !defined PRIxLEAST16 # define PRIxLEAST16 "x" #endif -#if !defined PRIXLEAST16 || @PRI_MACROS_BROKEN@ -# undef PRIXLEAST16 +#if !defined PRIXLEAST16 # define PRIXLEAST16 "X" #endif -#if !defined PRIdLEAST32 || @PRI_MACROS_BROKEN@ -# undef PRIdLEAST32 +#if !defined PRIdLEAST32 # define PRIdLEAST32 "d" #endif -#if !defined PRIiLEAST32 || @PRI_MACROS_BROKEN@ -# undef PRIiLEAST32 +#if !defined PRIiLEAST32 # define PRIiLEAST32 "i" #endif -#if !defined PRIoLEAST32 || @PRI_MACROS_BROKEN@ -# undef PRIoLEAST32 +#if !defined PRIoLEAST32 # define PRIoLEAST32 "o" #endif -#if !defined PRIuLEAST32 || @PRI_MACROS_BROKEN@ -# undef PRIuLEAST32 +#if !defined PRIuLEAST32 # define PRIuLEAST32 "u" #endif -#if !defined PRIxLEAST32 || @PRI_MACROS_BROKEN@ -# undef PRIxLEAST32 +#if !defined PRIxLEAST32 # define PRIxLEAST32 "x" #endif -#if !defined PRIXLEAST32 || @PRI_MACROS_BROKEN@ -# undef PRIXLEAST32 +#if !defined PRIXLEAST32 # define PRIXLEAST32 "X" #endif #ifdef INT64_MAX -# if !defined PRIdLEAST64 || @PRI_MACROS_BROKEN@ -# undef PRIdLEAST64 +# if !defined PRIdLEAST64 # define PRIdLEAST64 PRId64 # endif -# if !defined PRIiLEAST64 || @PRI_MACROS_BROKEN@ -# undef PRIiLEAST64 +# if !defined PRIiLEAST64 # define PRIiLEAST64 PRIi64 # endif #endif #ifdef UINT64_MAX -# if !defined PRIoLEAST64 || @PRI_MACROS_BROKEN@ -# undef PRIoLEAST64 +# if !defined PRIoLEAST64 # define PRIoLEAST64 PRIo64 # endif -# if !defined PRIuLEAST64 || @PRI_MACROS_BROKEN@ -# undef PRIuLEAST64 +# if !defined PRIuLEAST64 # define PRIuLEAST64 PRIu64 # endif -# if !defined PRIxLEAST64 || @PRI_MACROS_BROKEN@ -# undef PRIxLEAST64 +# if !defined PRIxLEAST64 # define PRIxLEAST64 PRIx64 # endif -# if !defined PRIXLEAST64 || @PRI_MACROS_BROKEN@ -# undef PRIXLEAST64 +# if !defined PRIXLEAST64 # define PRIXLEAST64 PRIX64 # endif #endif -#if !defined PRIdFAST8 || @PRI_MACROS_BROKEN@ -# undef PRIdFAST8 +#if !defined PRIdFAST8 # if INT_FAST8_MAX > INT32_MAX # define PRIdFAST8 PRId64 # else # define PRIdFAST8 "d" # endif #endif -#if !defined PRIiFAST8 || @PRI_MACROS_BROKEN@ -# undef PRIiFAST8 +#if !defined PRIiFAST8 # if INT_FAST8_MAX > INT32_MAX # define PRIiFAST8 PRIi64 # else # define PRIiFAST8 "i" # endif #endif -#if !defined PRIoFAST8 || @PRI_MACROS_BROKEN@ -# undef PRIoFAST8 +#if !defined PRIoFAST8 # if UINT_FAST8_MAX > UINT32_MAX # define PRIoFAST8 PRIo64 # else # define PRIoFAST8 "o" # endif #endif -#if !defined PRIuFAST8 || @PRI_MACROS_BROKEN@ -# undef PRIuFAST8 +#if !defined PRIuFAST8 # if UINT_FAST8_MAX > UINT32_MAX # define PRIuFAST8 PRIu64 # else # define PRIuFAST8 "u" # endif #endif -#if !defined PRIxFAST8 || @PRI_MACROS_BROKEN@ -# undef PRIxFAST8 +#if !defined PRIxFAST8 # if UINT_FAST8_MAX > UINT32_MAX # define PRIxFAST8 PRIx64 # else # define PRIxFAST8 "x" # endif #endif -#if !defined PRIXFAST8 || @PRI_MACROS_BROKEN@ -# undef PRIXFAST8 +#if !defined PRIXFAST8 # if UINT_FAST8_MAX > UINT32_MAX # define PRIXFAST8 PRIX64 # else # define PRIXFAST8 "X" # endif #endif -#if !defined PRIdFAST16 || @PRI_MACROS_BROKEN@ -# undef PRIdFAST16 +#if !defined PRIdFAST16 # if INT_FAST16_MAX > INT32_MAX # define PRIdFAST16 PRId64 # else # define PRIdFAST16 "d" # endif #endif -#if !defined PRIiFAST16 || @PRI_MACROS_BROKEN@ -# undef PRIiFAST16 +#if !defined PRIiFAST16 # if INT_FAST16_MAX > INT32_MAX # define PRIiFAST16 PRIi64 # else # define PRIiFAST16 "i" # endif #endif -#if !defined PRIoFAST16 || @PRI_MACROS_BROKEN@ -# undef PRIoFAST16 +#if !defined PRIoFAST16 # if UINT_FAST16_MAX > UINT32_MAX # define PRIoFAST16 PRIo64 # else # define PRIoFAST16 "o" # endif #endif -#if !defined PRIuFAST16 || @PRI_MACROS_BROKEN@ -# undef PRIuFAST16 +#if !defined PRIuFAST16 # if UINT_FAST16_MAX > UINT32_MAX # define PRIuFAST16 PRIu64 # else # define PRIuFAST16 "u" # endif #endif -#if !defined PRIxFAST16 || @PRI_MACROS_BROKEN@ -# undef PRIxFAST16 +#if !defined PRIxFAST16 # if UINT_FAST16_MAX > UINT32_MAX # define PRIxFAST16 PRIx64 # else # define PRIxFAST16 "x" # endif #endif -#if !defined PRIXFAST16 || @PRI_MACROS_BROKEN@ -# undef PRIXFAST16 +#if !defined PRIXFAST16 # if UINT_FAST16_MAX > UINT32_MAX # define PRIXFAST16 PRIX64 # else # define PRIXFAST16 "X" # endif #endif -#if !defined PRIdFAST32 || @PRI_MACROS_BROKEN@ -# undef PRIdFAST32 +#if !defined PRIdFAST32 # if INT_FAST32_MAX > INT32_MAX # define PRIdFAST32 PRId64 # else # define PRIdFAST32 "d" # endif #endif -#if !defined PRIiFAST32 || @PRI_MACROS_BROKEN@ -# undef PRIiFAST32 +#if !defined PRIiFAST32 # if INT_FAST32_MAX > INT32_MAX # define PRIiFAST32 PRIi64 # else # define PRIiFAST32 "i" # endif #endif -#if !defined PRIoFAST32 || @PRI_MACROS_BROKEN@ -# undef PRIoFAST32 +#if !defined PRIoFAST32 # if UINT_FAST32_MAX > UINT32_MAX # define PRIoFAST32 PRIo64 # else # define PRIoFAST32 "o" # endif #endif -#if !defined PRIuFAST32 || @PRI_MACROS_BROKEN@ -# undef PRIuFAST32 +#if !defined PRIuFAST32 # if UINT_FAST32_MAX > UINT32_MAX # define PRIuFAST32 PRIu64 # else # define PRIuFAST32 "u" # endif #endif -#if !defined PRIxFAST32 || @PRI_MACROS_BROKEN@ -# undef PRIxFAST32 +#if !defined PRIxFAST32 # if UINT_FAST32_MAX > UINT32_MAX # define PRIxFAST32 PRIx64 # else # define PRIxFAST32 "x" # endif #endif -#if !defined PRIXFAST32 || @PRI_MACROS_BROKEN@ -# undef PRIXFAST32 +#if !defined PRIXFAST32 # if UINT_FAST32_MAX > UINT32_MAX # define PRIXFAST32 PRIX64 # else @@ -475,76 +409,64 @@ # endif #endif #ifdef INT64_MAX -# if !defined PRIdFAST64 || @PRI_MACROS_BROKEN@ -# undef PRIdFAST64 +# if !defined PRIdFAST64 # define PRIdFAST64 PRId64 # endif -# if !defined PRIiFAST64 || @PRI_MACROS_BROKEN@ -# undef PRIiFAST64 +# if !defined PRIiFAST64 # define PRIiFAST64 PRIi64 # endif #endif #ifdef UINT64_MAX -# if !defined PRIoFAST64 || @PRI_MACROS_BROKEN@ -# undef PRIoFAST64 +# if !defined PRIoFAST64 # define PRIoFAST64 PRIo64 # endif -# if !defined PRIuFAST64 || @PRI_MACROS_BROKEN@ -# undef PRIuFAST64 +# if !defined PRIuFAST64 # define PRIuFAST64 PRIu64 # endif -# if !defined PRIxFAST64 || @PRI_MACROS_BROKEN@ -# undef PRIxFAST64 +# if !defined PRIxFAST64 # define PRIxFAST64 PRIx64 # endif -# if !defined PRIXFAST64 || @PRI_MACROS_BROKEN@ -# undef PRIXFAST64 +# if !defined PRIXFAST64 # define PRIXFAST64 PRIX64 # endif #endif -#if !defined PRIdMAX || @PRI_MACROS_BROKEN@ -# undef PRIdMAX +#if !defined PRIdMAX # if @INT32_MAX_LT_INTMAX_MAX@ # define PRIdMAX PRId64 # else # define PRIdMAX "ld" # endif #endif -#if !defined PRIiMAX || @PRI_MACROS_BROKEN@ -# undef PRIiMAX +#if !defined PRIiMAX # if @INT32_MAX_LT_INTMAX_MAX@ # define PRIiMAX PRIi64 # else # define PRIiMAX "li" # endif #endif -#if !defined PRIoMAX || @PRI_MACROS_BROKEN@ -# undef PRIoMAX +#if !defined PRIoMAX # if @UINT32_MAX_LT_UINTMAX_MAX@ # define PRIoMAX PRIo64 # else # define PRIoMAX "lo" # endif #endif -#if !defined PRIuMAX || @PRI_MACROS_BROKEN@ -# undef PRIuMAX +#if !defined PRIuMAX # if @UINT32_MAX_LT_UINTMAX_MAX@ # define PRIuMAX PRIu64 # else # define PRIuMAX "lu" # endif #endif -#if !defined PRIxMAX || @PRI_MACROS_BROKEN@ -# undef PRIxMAX +#if !defined PRIxMAX # if @UINT32_MAX_LT_UINTMAX_MAX@ # define PRIxMAX PRIx64 # else # define PRIxMAX "lx" # endif #endif -#if !defined PRIXMAX || @PRI_MACROS_BROKEN@ -# undef PRIXMAX +#if !defined PRIXMAX # if @UINT32_MAX_LT_UINTMAX_MAX@ # define PRIXMAX PRIX64 # else @@ -552,129 +474,108 @@ # endif #endif -#if !defined PRIdPTR || @PRI_MACROS_BROKEN@ -# undef PRIdPTR +#if !defined PRIdPTR # ifdef INTPTR_MAX # define PRIdPTR @PRIPTR_PREFIX@ "d" # endif #endif -#if !defined PRIiPTR || @PRI_MACROS_BROKEN@ -# undef PRIiPTR +#if !defined PRIiPTR # ifdef INTPTR_MAX # define PRIiPTR @PRIPTR_PREFIX@ "i" # endif #endif -#if !defined PRIoPTR || @PRI_MACROS_BROKEN@ -# undef PRIoPTR +#if !defined PRIoPTR # ifdef UINTPTR_MAX # define PRIoPTR @PRIPTR_PREFIX@ "o" # endif #endif -#if !defined PRIuPTR || @PRI_MACROS_BROKEN@ -# undef PRIuPTR +#if !defined PRIuPTR # ifdef UINTPTR_MAX # define PRIuPTR @PRIPTR_PREFIX@ "u" # endif #endif -#if !defined PRIxPTR || @PRI_MACROS_BROKEN@ -# undef PRIxPTR +#if !defined PRIxPTR # ifdef UINTPTR_MAX # define PRIxPTR @PRIPTR_PREFIX@ "x" # endif #endif -#if !defined PRIXPTR || @PRI_MACROS_BROKEN@ -# undef PRIXPTR +#if !defined PRIXPTR # ifdef UINTPTR_MAX # define PRIXPTR @PRIPTR_PREFIX@ "X" # endif #endif -#if !defined SCNd8 || @PRI_MACROS_BROKEN@ -# undef SCNd8 +#if !defined SCNd8 # ifdef INT8_MAX # define SCNd8 "hhd" # endif #endif -#if !defined SCNi8 || @PRI_MACROS_BROKEN@ -# undef SCNi8 +#if !defined SCNi8 # ifdef INT8_MAX # define SCNi8 "hhi" # endif #endif -#if !defined SCNo8 || @PRI_MACROS_BROKEN@ -# undef SCNo8 +#if !defined SCNo8 # ifdef UINT8_MAX # define SCNo8 "hho" # endif #endif -#if !defined SCNu8 || @PRI_MACROS_BROKEN@ -# undef SCNu8 +#if !defined SCNu8 # ifdef UINT8_MAX # define SCNu8 "hhu" # endif #endif -#if !defined SCNx8 || @PRI_MACROS_BROKEN@ -# undef SCNx8 +#if !defined SCNx8 # ifdef UINT8_MAX # define SCNx8 "hhx" # endif #endif -#if !defined SCNd16 || @PRI_MACROS_BROKEN@ -# undef SCNd16 +#if !defined SCNd16 # ifdef INT16_MAX # define SCNd16 "hd" # endif #endif -#if !defined SCNi16 || @PRI_MACROS_BROKEN@ -# undef SCNi16 +#if !defined SCNi16 # ifdef INT16_MAX # define SCNi16 "hi" # endif #endif -#if !defined SCNo16 || @PRI_MACROS_BROKEN@ -# undef SCNo16 +#if !defined SCNo16 # ifdef UINT16_MAX # define SCNo16 "ho" # endif #endif -#if !defined SCNu16 || @PRI_MACROS_BROKEN@ -# undef SCNu16 +#if !defined SCNu16 # ifdef UINT16_MAX # define SCNu16 "hu" # endif #endif -#if !defined SCNx16 || @PRI_MACROS_BROKEN@ -# undef SCNx16 +#if !defined SCNx16 # ifdef UINT16_MAX # define SCNx16 "hx" # endif #endif -#if !defined SCNd32 || @PRI_MACROS_BROKEN@ -# undef SCNd32 +#if !defined SCNd32 # ifdef INT32_MAX # define SCNd32 "d" # endif #endif -#if !defined SCNi32 || @PRI_MACROS_BROKEN@ -# undef SCNi32 +#if !defined SCNi32 # ifdef INT32_MAX # define SCNi32 "i" # endif #endif -#if !defined SCNo32 || @PRI_MACROS_BROKEN@ -# undef SCNo32 +#if !defined SCNo32 # ifdef UINT32_MAX # define SCNo32 "o" # endif #endif -#if !defined SCNu32 || @PRI_MACROS_BROKEN@ -# undef SCNu32 +#if !defined SCNu32 # ifdef UINT32_MAX # define SCNu32 "u" # endif #endif -#if !defined SCNx32 || @PRI_MACROS_BROKEN@ -# undef SCNx32 +#if !defined SCNx32 # ifdef UINT32_MAX # define SCNx32 "x" # endif @@ -687,12 +588,10 @@ # elif LONG_MAX >> 30 == 1 # define _SCN64_PREFIX _LONG_LONG_FORMAT_PREFIX # endif -# if !defined SCNd64 || @PRI_MACROS_BROKEN@ -# undef SCNd64 +# if !defined SCNd64 # define SCNd64 _SCN64_PREFIX "d" # endif -# if !defined SCNi64 || @PRI_MACROS_BROKEN@ -# undef SCNi64 +# if !defined SCNi64 # define SCNi64 _SCN64_PREFIX "i" # endif #endif @@ -704,107 +603,83 @@ # elif ULONG_MAX >> 31 == 1 # define _SCNu64_PREFIX _LONG_LONG_FORMAT_PREFIX # endif -# if !defined SCNo64 || @PRI_MACROS_BROKEN@ -# undef SCNo64 +# if !defined SCNo64 # define SCNo64 _SCNu64_PREFIX "o" # endif -# if !defined SCNu64 || @PRI_MACROS_BROKEN@ -# undef SCNu64 +# if !defined SCNu64 # define SCNu64 _SCNu64_PREFIX "u" # endif -# if !defined SCNx64 || @PRI_MACROS_BROKEN@ -# undef SCNx64 +# if !defined SCNx64 # define SCNx64 _SCNu64_PREFIX "x" # endif #endif -#if !defined SCNdLEAST8 || @PRI_MACROS_BROKEN@ -# undef SCNdLEAST8 +#if !defined SCNdLEAST8 # define SCNdLEAST8 "hhd" #endif -#if !defined SCNiLEAST8 || @PRI_MACROS_BROKEN@ -# undef SCNiLEAST8 +#if !defined SCNiLEAST8 # define SCNiLEAST8 "hhi" #endif -#if !defined SCNoLEAST8 || @PRI_MACROS_BROKEN@ -# undef SCNoLEAST8 +#if !defined SCNoLEAST8 # define SCNoLEAST8 "hho" #endif -#if !defined SCNuLEAST8 || @PRI_MACROS_BROKEN@ -# undef SCNuLEAST8 +#if !defined SCNuLEAST8 # define SCNuLEAST8 "hhu" #endif -#if !defined SCNxLEAST8 || @PRI_MACROS_BROKEN@ -# undef SCNxLEAST8 +#if !defined SCNxLEAST8 # define SCNxLEAST8 "hhx" #endif -#if !defined SCNdLEAST16 || @PRI_MACROS_BROKEN@ -# undef SCNdLEAST16 +#if !defined SCNdLEAST16 # define SCNdLEAST16 "hd" #endif -#if !defined SCNiLEAST16 || @PRI_MACROS_BROKEN@ -# undef SCNiLEAST16 +#if !defined SCNiLEAST16 # define SCNiLEAST16 "hi" #endif -#if !defined SCNoLEAST16 || @PRI_MACROS_BROKEN@ -# undef SCNoLEAST16 +#if !defined SCNoLEAST16 # define SCNoLEAST16 "ho" #endif -#if !defined SCNuLEAST16 || @PRI_MACROS_BROKEN@ -# undef SCNuLEAST16 +#if !defined SCNuLEAST16 # define SCNuLEAST16 "hu" #endif -#if !defined SCNxLEAST16 || @PRI_MACROS_BROKEN@ -# undef SCNxLEAST16 +#if !defined SCNxLEAST16 # define SCNxLEAST16 "hx" #endif -#if !defined SCNdLEAST32 || @PRI_MACROS_BROKEN@ -# undef SCNdLEAST32 +#if !defined SCNdLEAST32 # define SCNdLEAST32 "d" #endif -#if !defined SCNiLEAST32 || @PRI_MACROS_BROKEN@ -# undef SCNiLEAST32 +#if !defined SCNiLEAST32 # define SCNiLEAST32 "i" #endif -#if !defined SCNoLEAST32 || @PRI_MACROS_BROKEN@ -# undef SCNoLEAST32 +#if !defined SCNoLEAST32 # define SCNoLEAST32 "o" #endif -#if !defined SCNuLEAST32 || @PRI_MACROS_BROKEN@ -# undef SCNuLEAST32 +#if !defined SCNuLEAST32 # define SCNuLEAST32 "u" #endif -#if !defined SCNxLEAST32 || @PRI_MACROS_BROKEN@ -# undef SCNxLEAST32 +#if !defined SCNxLEAST32 # define SCNxLEAST32 "x" #endif #ifdef INT64_MAX -# if !defined SCNdLEAST64 || @PRI_MACROS_BROKEN@ -# undef SCNdLEAST64 +# if !defined SCNdLEAST64 # define SCNdLEAST64 SCNd64 # endif -# if !defined SCNiLEAST64 || @PRI_MACROS_BROKEN@ -# undef SCNiLEAST64 +# if !defined SCNiLEAST64 # define SCNiLEAST64 SCNi64 # endif #endif #ifdef UINT64_MAX -# if !defined SCNoLEAST64 || @PRI_MACROS_BROKEN@ -# undef SCNoLEAST64 +# if !defined SCNoLEAST64 # define SCNoLEAST64 SCNo64 # endif -# if !defined SCNuLEAST64 || @PRI_MACROS_BROKEN@ -# undef SCNuLEAST64 +# if !defined SCNuLEAST64 # define SCNuLEAST64 SCNu64 # endif -# if !defined SCNxLEAST64 || @PRI_MACROS_BROKEN@ -# undef SCNxLEAST64 +# if !defined SCNxLEAST64 # define SCNxLEAST64 SCNx64 # endif #endif -#if !defined SCNdFAST8 || @PRI_MACROS_BROKEN@ -# undef SCNdFAST8 +#if !defined SCNdFAST8 # if INT_FAST8_MAX > INT32_MAX # define SCNdFAST8 SCNd64 # elif INT_FAST8_MAX == 0x7fff @@ -815,8 +690,7 @@ # define SCNdFAST8 "d" # endif #endif -#if !defined SCNiFAST8 || @PRI_MACROS_BROKEN@ -# undef SCNiFAST8 +#if !defined SCNiFAST8 # if INT_FAST8_MAX > INT32_MAX # define SCNiFAST8 SCNi64 # elif INT_FAST8_MAX == 0x7fff @@ -827,8 +701,7 @@ # define SCNiFAST8 "i" # endif #endif -#if !defined SCNoFAST8 || @PRI_MACROS_BROKEN@ -# undef SCNoFAST8 +#if !defined SCNoFAST8 # if UINT_FAST8_MAX > UINT32_MAX # define SCNoFAST8 SCNo64 # elif UINT_FAST8_MAX == 0xffff @@ -839,8 +712,7 @@ # define SCNoFAST8 "o" # endif #endif -#if !defined SCNuFAST8 || @PRI_MACROS_BROKEN@ -# undef SCNuFAST8 +#if !defined SCNuFAST8 # if UINT_FAST8_MAX > UINT32_MAX # define SCNuFAST8 SCNu64 # elif UINT_FAST8_MAX == 0xffff @@ -851,8 +723,7 @@ # define SCNuFAST8 "u" # endif #endif -#if !defined SCNxFAST8 || @PRI_MACROS_BROKEN@ -# undef SCNxFAST8 +#if !defined SCNxFAST8 # if UINT_FAST8_MAX > UINT32_MAX # define SCNxFAST8 SCNx64 # elif UINT_FAST8_MAX == 0xffff @@ -863,8 +734,7 @@ # define SCNxFAST8 "x" # endif #endif -#if !defined SCNdFAST16 || @PRI_MACROS_BROKEN@ -# undef SCNdFAST16 +#if !defined SCNdFAST16 # if INT_FAST16_MAX > INT32_MAX # define SCNdFAST16 SCNd64 # elif INT_FAST16_MAX == 0x7fff @@ -873,8 +743,7 @@ # define SCNdFAST16 "d" # endif #endif -#if !defined SCNiFAST16 || @PRI_MACROS_BROKEN@ -# undef SCNiFAST16 +#if !defined SCNiFAST16 # if INT_FAST16_MAX > INT32_MAX # define SCNiFAST16 SCNi64 # elif INT_FAST16_MAX == 0x7fff @@ -883,8 +752,7 @@ # define SCNiFAST16 "i" # endif #endif -#if !defined SCNoFAST16 || @PRI_MACROS_BROKEN@ -# undef SCNoFAST16 +#if !defined SCNoFAST16 # if UINT_FAST16_MAX > UINT32_MAX # define SCNoFAST16 SCNo64 # elif UINT_FAST16_MAX == 0xffff @@ -893,8 +761,7 @@ # define SCNoFAST16 "o" # endif #endif -#if !defined SCNuFAST16 || @PRI_MACROS_BROKEN@ -# undef SCNuFAST16 +#if !defined SCNuFAST16 # if UINT_FAST16_MAX > UINT32_MAX # define SCNuFAST16 SCNu64 # elif UINT_FAST16_MAX == 0xffff @@ -903,8 +770,7 @@ # define SCNuFAST16 "u" # endif #endif -#if !defined SCNxFAST16 || @PRI_MACROS_BROKEN@ -# undef SCNxFAST16 +#if !defined SCNxFAST16 # if UINT_FAST16_MAX > UINT32_MAX # define SCNxFAST16 SCNx64 # elif UINT_FAST16_MAX == 0xffff @@ -913,40 +779,35 @@ # define SCNxFAST16 "x" # endif #endif -#if !defined SCNdFAST32 || @PRI_MACROS_BROKEN@ -# undef SCNdFAST32 +#if !defined SCNdFAST32 # if INT_FAST32_MAX > INT32_MAX # define SCNdFAST32 SCNd64 # else # define SCNdFAST32 "d" # endif #endif -#if !defined SCNiFAST32 || @PRI_MACROS_BROKEN@ -# undef SCNiFAST32 +#if !defined SCNiFAST32 # if INT_FAST32_MAX > INT32_MAX # define SCNiFAST32 SCNi64 # else # define SCNiFAST32 "i" # endif #endif -#if !defined SCNoFAST32 || @PRI_MACROS_BROKEN@ -# undef SCNoFAST32 +#if !defined SCNoFAST32 # if UINT_FAST32_MAX > UINT32_MAX # define SCNoFAST32 SCNo64 # else # define SCNoFAST32 "o" # endif #endif -#if !defined SCNuFAST32 || @PRI_MACROS_BROKEN@ -# undef SCNuFAST32 +#if !defined SCNuFAST32 # if UINT_FAST32_MAX > UINT32_MAX # define SCNuFAST32 SCNu64 # else # define SCNuFAST32 "u" # endif #endif -#if !defined SCNxFAST32 || @PRI_MACROS_BROKEN@ -# undef SCNxFAST32 +#if !defined SCNxFAST32 # if UINT_FAST32_MAX > UINT32_MAX # define SCNxFAST32 SCNx64 # else @@ -954,64 +815,54 @@ # endif #endif #ifdef INT64_MAX -# if !defined SCNdFAST64 || @PRI_MACROS_BROKEN@ -# undef SCNdFAST64 +# if !defined SCNdFAST64 # define SCNdFAST64 SCNd64 # endif -# if !defined SCNiFAST64 || @PRI_MACROS_BROKEN@ -# undef SCNiFAST64 +# if !defined SCNiFAST64 # define SCNiFAST64 SCNi64 # endif #endif #ifdef UINT64_MAX -# if !defined SCNoFAST64 || @PRI_MACROS_BROKEN@ -# undef SCNoFAST64 +# if !defined SCNoFAST64 # define SCNoFAST64 SCNo64 # endif -# if !defined SCNuFAST64 || @PRI_MACROS_BROKEN@ -# undef SCNuFAST64 +# if !defined SCNuFAST64 # define SCNuFAST64 SCNu64 # endif -# if !defined SCNxFAST64 || @PRI_MACROS_BROKEN@ -# undef SCNxFAST64 +# if !defined SCNxFAST64 # define SCNxFAST64 SCNx64 # endif #endif -#if !defined SCNdMAX || @PRI_MACROS_BROKEN@ -# undef SCNdMAX +#if !defined SCNdMAX # if @INT32_MAX_LT_INTMAX_MAX@ # define SCNdMAX SCNd64 # else # define SCNdMAX "ld" # endif #endif -#if !defined SCNiMAX || @PRI_MACROS_BROKEN@ -# undef SCNiMAX +#if !defined SCNiMAX # if @INT32_MAX_LT_INTMAX_MAX@ # define SCNiMAX SCNi64 # else # define SCNiMAX "li" # endif #endif -#if !defined SCNoMAX || @PRI_MACROS_BROKEN@ -# undef SCNoMAX +#if !defined SCNoMAX # if @UINT32_MAX_LT_UINTMAX_MAX@ # define SCNoMAX SCNo64 # else # define SCNoMAX "lo" # endif #endif -#if !defined SCNuMAX || @PRI_MACROS_BROKEN@ -# undef SCNuMAX +#if !defined SCNuMAX # if @UINT32_MAX_LT_UINTMAX_MAX@ # define SCNuMAX SCNu64 # else # define SCNuMAX "lu" # endif #endif -#if !defined SCNxMAX || @PRI_MACROS_BROKEN@ -# undef SCNxMAX +#if !defined SCNxMAX # if @UINT32_MAX_LT_UINTMAX_MAX@ # define SCNxMAX SCNx64 # else @@ -1019,32 +870,27 @@ # endif #endif -#if !defined SCNdPTR || @PRI_MACROS_BROKEN@ -# undef SCNdPTR +#if !defined SCNdPTR # ifdef INTPTR_MAX # define SCNdPTR @PRIPTR_PREFIX@ "d" # endif #endif -#if !defined SCNiPTR || @PRI_MACROS_BROKEN@ -# undef SCNiPTR +#if !defined SCNiPTR # ifdef INTPTR_MAX # define SCNiPTR @PRIPTR_PREFIX@ "i" # endif #endif -#if !defined SCNoPTR || @PRI_MACROS_BROKEN@ -# undef SCNoPTR +#if !defined SCNoPTR # ifdef UINTPTR_MAX # define SCNoPTR @PRIPTR_PREFIX@ "o" # endif #endif -#if !defined SCNuPTR || @PRI_MACROS_BROKEN@ -# undef SCNuPTR +#if !defined SCNuPTR # ifdef UINTPTR_MAX # define SCNuPTR @PRIPTR_PREFIX@ "u" # endif #endif -#if !defined SCNxPTR || @PRI_MACROS_BROKEN@ -# undef SCNxPTR +#if !defined SCNxPTR # ifdef UINTPTR_MAX # define SCNxPTR @PRIPTR_PREFIX@ "x" # endif diff --git a/lib/lchmod.c b/lib/lchmod.c index e1132116234..77a00609552 100644 --- a/lib/lchmod.c +++ b/lib/lchmod.c @@ -76,7 +76,7 @@ lchmod (char const *file, mode_t mode) return -1; } -# if defined __linux__ || defined __ANDROID__ +# if defined __linux__ || defined __ANDROID__ || defined __CYGWIN__ static char const fmt[] = "/proc/self/fd/%d"; char buf[sizeof fmt - sizeof "%d" + INT_BUFSIZE_BOUND (int)]; sprintf (buf, fmt, fd); diff --git a/lib/mini-gmp-gnulib.c b/lib/mini-gmp-gnulib.c index 5019be5d52a..e9e8a174c03 100644 --- a/lib/mini-gmp-gnulib.c +++ b/lib/mini-gmp-gnulib.c @@ -22,12 +22,14 @@ #include "mini-gmp.h" -/* Pacify GCC -Wsuggest-attribute=const, malloc, pure. */ +/* Pacify GCC -Wsuggest-attribute=const, pure, malloc. */ #if 4 < __GNUC__ + (6 <= __GNUC_MINOR__) # pragma GCC diagnostic ignored "-Wsuggest-attribute=const" -# pragma GCC diagnostic ignored "-Wsuggest-attribute=malloc" # pragma GCC diagnostic ignored "-Wsuggest-attribute=pure" #endif +#if 8 <= __GNUC__ +# pragma GCC diagnostic ignored "-Wsuggest-attribute=malloc" +#endif /* Pacify GCC -Wunused-variable for variables used only in 'assert' calls. */ #if defined NDEBUG && 4 < __GNUC__ + (6 <= __GNUC_MINOR__) diff --git a/lib/nstrftime.c b/lib/nstrftime.c index 28b539dc2f2..2816cf4d58b 100644 --- a/lib/nstrftime.c +++ b/lib/nstrftime.c @@ -495,15 +495,6 @@ __strftime_internal (STREAM_OR_CHAR_T *s, STRFTIME_ARG (size_t maxsize) const char *format_end = NULL; #endif -#if ! defined _LIBC && ! HAVE_RUN_TZSET_TEST - /* Solaris 2.5.x and 2.6 tzset sometimes modify the storage returned - by localtime. On such systems, we must either use the tzset and - localtime wrappers to work around the bug (which sets - HAVE_RUN_TZSET_TEST) or make a copy of the structure. */ - struct tm copy = *tp; - tp = © -#endif - zone = NULL; #if HAVE_TM_ZONE /* The POSIX test suite assumes that setting diff --git a/lib/regex.h b/lib/regex.h index 76ff4e342fe..610f139eb39 100644 --- a/lib/regex.h +++ b/lib/regex.h @@ -600,11 +600,9 @@ extern void re_set_registers (struct re_pattern_buffer *__buffer, #endif /* Use GNU */ #if defined _REGEX_RE_COMP || (defined _LIBC && defined __USE_MISC) -# ifndef _CRAY /* 4.2 bsd compatibility. */ extern char *re_comp (const char *); extern int re_exec (const char *); -# endif #endif /* For plain 'restrict', use glibc's __restrict if defined. diff --git a/lib/timespec.h b/lib/timespec.h index 02684ce6eac..dc999f944b2 100644 --- a/lib/timespec.h +++ b/lib/timespec.h @@ -34,7 +34,6 @@ extern "C" { #endif #include "arg-nonnull.h" -#include "verify.h" /* Inverse resolution of timespec timestamps (in units per second), and log base 10 of the inverse resolution. */ @@ -59,46 +58,12 @@ make_timespec (time_t s, long int ns) return r; } -/* Return negative, zero, positive if A < B, A == B, A > B, respectively. - - For each timestamp T, this code assumes that either: - - * T.tv_nsec is in the range 0..999999999; or - * T.tv_sec corresponds to a valid leap second on a host that supports - leap seconds, and T.tv_nsec is in the range 1000000000..1999999999; or - * T.tv_sec is the minimum time_t value and T.tv_nsec is -1; or - T.tv_sec is the maximum time_t value and T.tv_nsec is 2000000000. - This allows for special struct timespec values that are less or - greater than all possible valid timestamps. - - In all these cases, it is safe to subtract two tv_nsec values and - convert the result to integer without worrying about overflow on - any platform of interest to the GNU project, since all such - platforms have 32-bit int or wider. - - Replacing "a.tv_nsec - b.tv_nsec" with something like - "a.tv_nsec < b.tv_nsec ? -1 : a.tv_nsec > b.tv_nsec" would cause - this function to work in some cases where the above assumption is - violated, but not in all cases (e.g., a.tv_sec==1, a.tv_nsec==-2, - b.tv_sec==0, b.tv_nsec==999999999) and is arguably not worth the - extra instructions. Using a subtraction has the advantage of - detecting some invalid cases on platforms that detect integer - overflow. */ +/* Return negative, zero, positive if A < B, A == B, A > B, respectively. */ _GL_TIMESPEC_INLINE int _GL_ATTRIBUTE_PURE timespec_cmp (struct timespec a, struct timespec b) { - if (a.tv_sec < b.tv_sec) - return -1; - if (a.tv_sec > b.tv_sec) - return 1; - - /* Pacify gcc -Wstrict-overflow (bleeding-edge circa 2017-10-02). See: - https://lists.gnu.org/r/bug-gnulib/2017-10/msg00006.html */ - assume (-1 <= a.tv_nsec && a.tv_nsec <= 2 * TIMESPEC_HZ); - assume (-1 <= b.tv_nsec && b.tv_nsec <= 2 * TIMESPEC_HZ); - - return a.tv_nsec - b.tv_nsec; + return 2 * _GL_CMP (a.tv_sec, b.tv_sec) + _GL_CMP (a.tv_nsec, b.tv_nsec); } /* Return -1, 0, 1, depending on the sign of A. A.tv_nsec must be @@ -106,7 +71,7 @@ timespec_cmp (struct timespec a, struct timespec b) _GL_TIMESPEC_INLINE int _GL_ATTRIBUTE_PURE timespec_sign (struct timespec a) { - return a.tv_sec < 0 ? -1 : a.tv_sec || a.tv_nsec; + return _GL_CMP (a.tv_sec, 0) + (!a.tv_sec & !!a.tv_nsec); } struct timespec timespec_add (struct timespec, struct timespec) diff --git a/m4/alloca.m4 b/m4/alloca.m4 index 59225245b91..d3e98c51bf4 100644 --- a/m4/alloca.m4 +++ b/m4/alloca.m4 @@ -1,4 +1,4 @@ -# alloca.m4 serial 15 +# alloca.m4 serial 16 dnl Copyright (C) 2002-2004, 2006-2007, 2009-2020 Free Software Foundation, dnl Inc. dnl This file is free software; the Free Software Foundation @@ -51,12 +51,9 @@ AC_DEFUN([gl_FUNC_ALLOCA], AC_DEFUN([gl_PREREQ_ALLOCA], [:]) # This works around a bug in autoconf <= 2.68. -# See . - -m4_version_prereq([2.69], [] ,[ - -# This is taken from the following Autoconf patch: -# https://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=commitdiff;h=6cd9f12520b0d6f76d3230d7565feba1ecf29497 +# See and +# . +# Also it has a simplification that is not yet in Autoconf. # _AC_LIBOBJ_ALLOCA # ----------------- @@ -72,26 +69,6 @@ AC_LIBSOURCES(alloca.c) AC_SUBST([ALLOCA], [\${LIBOBJDIR}alloca.$ac_objext])dnl AC_DEFINE(C_ALLOCA, 1, [Define to 1 if using 'alloca.c'.]) -AC_CACHE_CHECK(whether 'alloca.c' needs Cray hooks, ac_cv_os_cray, -[AC_EGREP_CPP(webecray, -[#if defined CRAY && ! defined CRAY2 -webecray -#else -wenotbecray -#endif -], ac_cv_os_cray=yes, ac_cv_os_cray=no)]) -if test $ac_cv_os_cray = yes; then - for ac_func in _getb67 GETB67 getb67; do - AC_CHECK_FUNC($ac_func, - [AC_DEFINE_UNQUOTED(CRAY_STACKSEG_END, $ac_func, - [Define to one of '_getb67', 'GETB67', - 'getb67' for Cray-2 and Cray-YMP - systems. This function is required for - 'alloca.c' support on those systems.]) - break]) - done -fi - AC_CACHE_CHECK([stack direction for C alloca], [ac_cv_c_stack_direction], [AC_RUN_IFELSE([AC_LANG_SOURCE( @@ -124,5 +101,4 @@ AH_VERBATIM([STACK_DIRECTION], STACK_DIRECTION = 0 => direction of growth unknown */ @%:@undef STACK_DIRECTION])dnl AC_DEFINE_UNQUOTED(STACK_DIRECTION, $ac_cv_c_stack_direction) -])# _AC_LIBOBJ_ALLOCA ]) diff --git a/m4/getgroups.m4 b/m4/getgroups.m4 index 3e7e46f8672..e3441621b25 100644 --- a/m4/getgroups.m4 +++ b/m4/getgroups.m4 @@ -1,4 +1,4 @@ -# serial 23 +# serial 24 dnl From Jim Meyering. dnl A wrapper around AC_FUNC_GETGROUPS. @@ -79,7 +79,8 @@ AC_DEFUN([gl_FUNC_GETGROUPS], AC_DEFINE([GETGROUPS_ZERO_BUG], [1], [Define this to 1 if getgroups(0,NULL) does not return the number of groups.]) else - dnl Detect FreeBSD bug; POSIX requires getgroups(-1,ptr) to fail. + dnl Detect Mac OS X and FreeBSD bug; POSIX requires getgroups(-1,ptr) + dnl to fail. AC_CACHE_CHECK([whether getgroups handles negative values], [gl_cv_func_getgroups_works], [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], diff --git a/m4/gettimeofday.m4 b/m4/gettimeofday.m4 index c72b3eacc63..578ed49b077 100644 --- a/m4/gettimeofday.m4 +++ b/m4/gettimeofday.m4 @@ -1,4 +1,4 @@ -# serial 27 +# serial 28 # Copyright (C) 2001-2003, 2005, 2007, 2009-2020 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation @@ -19,7 +19,6 @@ AC_DEFUN([gl_FUNC_GETTIMEOFDAY], if test $ac_cv_func_gettimeofday != yes; then HAVE_GETTIMEOFDAY=0 else - gl_FUNC_GETTIMEOFDAY_CLOBBER AC_CACHE_CHECK([for gettimeofday with POSIX signature], [gl_cv_func_gettimeofday_posix_signature], [AC_COMPILE_IFELSE( @@ -66,63 +65,5 @@ int gettimeofday (struct timeval *restrict, struct timezone *restrict); declaration of the second argument to gettimeofday.]) ]) - -dnl See if gettimeofday clobbers the static buffer that localtime uses -dnl for its return value. The gettimeofday function from Mac OS X 10.0.4 -dnl (i.e., Darwin 1.3.7) has this problem. -dnl -dnl If it does, then arrange to use gettimeofday and localtime only via -dnl the wrapper functions that work around the problem. - -AC_DEFUN([gl_FUNC_GETTIMEOFDAY_CLOBBER], -[ - AC_REQUIRE([gl_HEADER_SYS_TIME_H]) - AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles - AC_REQUIRE([gl_LOCALTIME_BUFFER_DEFAULTS]) - - AC_CACHE_CHECK([whether gettimeofday clobbers localtime buffer], - [gl_cv_func_gettimeofday_clobber], - [AC_RUN_IFELSE( - [AC_LANG_PROGRAM( - [[#include - #include - #include - #include - ]], - [[ - time_t t = 0; - struct tm *lt; - struct tm saved_lt; - struct timeval tv; - lt = localtime (&t); - saved_lt = *lt; - gettimeofday (&tv, NULL); - return memcmp (lt, &saved_lt, sizeof (struct tm)) != 0; - ]])], - [gl_cv_func_gettimeofday_clobber=no], - [gl_cv_func_gettimeofday_clobber=yes], - [# When cross-compiling: - case "$host_os" in - # Guess all is fine on glibc systems. - *-gnu* | gnu*) gl_cv_func_gettimeofday_clobber="guessing no" ;; - # Guess all is fine on musl systems. - *-musl*) gl_cv_func_gettimeofday_clobber="guessing no" ;; - # Guess no on native Windows. - mingw*) gl_cv_func_gettimeofday_clobber="guessing no" ;; - # If we don't know, obey --enable-cross-guesses. - *) gl_cv_func_gettimeofday_clobber="$gl_cross_guess_inverted" ;; - esac - ])]) - - case "$gl_cv_func_gettimeofday_clobber" in - *yes) - REPLACE_GETTIMEOFDAY=1 - AC_DEFINE([GETTIMEOFDAY_CLOBBERS_LOCALTIME], [1], - [Define if gettimeofday clobbers the localtime buffer.]) - gl_LOCALTIME_BUFFER_NEEDED - ;; - esac -]) - # Prerequisites of lib/gettimeofday.c. AC_DEFUN([gl_PREREQ_GETTIMEOFDAY], [:]) diff --git a/m4/gnulib-common.m4 b/m4/gnulib-common.m4 index f4ba5e3a00d..57f3a780118 100644 --- a/m4/gnulib-common.m4 +++ b/m4/gnulib-common.m4 @@ -1,4 +1,4 @@ -# gnulib-common.m4 serial 50 +# gnulib-common.m4 serial 52 dnl Copyright (C) 2007-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -120,9 +120,14 @@ AC_DEFUN([gl_COMMON_BODY], [ #endif /* Avoid __attribute__ ((cold)) on MinGW; see thread starting at - . */ + . + Also, Oracle Studio 12.6 requires 'cold' not '__cold__'. */ #if _GL_HAS_ATTRIBUTE (cold) && !defined __MINGW32__ -# define _GL_ATTRIBUTE_COLD __attribute__ ((__cold__)) +# ifndef __SUNPRO_C +# define _GL_ATTRIBUTE_COLD __attribute__ ((__cold__)) +# else +# define _GL_ATTRIBUTE_COLD __attribute__ ((cold)) +# endif #else # define _GL_ATTRIBUTE_COLD #endif @@ -176,7 +181,8 @@ AC_DEFUN([gl_COMMON_BODY], [ # define _GL_ATTRIBUTE_LEAF #endif -#if _GL_HAS_ATTRIBUTE (may_alias) +/* Oracle Studio 12.6 mishandles may_alias despite __has_attribute OK. */ +#if _GL_HAS_ATTRIBUTE (may_alias) && !defined __SUNPRO_C # define _GL_ATTRIBUTE_MAY_ALIAS __attribute__ ((__may_alias__)) #else # define _GL_ATTRIBUTE_MAY_ALIAS @@ -292,6 +298,20 @@ AC_DEFUN([gl_COMMON_BODY], [ that may clobber errno, it needs to save and restore the value of errno. */ #define _GL_ASYNC_SAFE +]) + AH_VERBATIM([micro_optimizations], +[/* _GL_CMP (n1, n2) performs a three-valued comparison on n1 vs. n2. + It returns + 1 if n1 > n2 + 0 if n1 == n2 + -1 if n1 < n2 + The naïve code (n1 > n2 ? 1 : n1 < n2 ? -1 : 0) produces a conditional + jump with nearly all GCC versions up to GCC 10. + This variant (n1 < n2 ? -1 : n1 > n2) produces a conditional with many + GCC versions up to GCC 9. + The better code (n1 > n2) - (n1 < n2) from Hacker's Delight § 2-9 + avoids conditional jumps in all GCC versions >= 3.4. */ +#define _GL_CMP(n1, n2) (((n1) > (n2)) - ((n1) < (n2))) ]) dnl Hint which direction to take regarding cross-compilation guesses: dnl When a user installs a program on a platform they are not intimately @@ -612,6 +632,15 @@ AC_DEFUN([gl_BIGENDIAN], AC_C_BIGENDIAN ]) +# gl_SILENT(command) +# executes command, but without the normal configure output. +AC_DEFUN([gl_SILENT], +[ + { + $1 + } AS_MESSAGE_FD>/dev/null +]) + # gl_CACHE_VAL_SILENT(cache-id, command-to-set-it) # is like AC_CACHE_VAL(cache-id, command-to-set-it), except that it does not # output a spurious "(cached)" mark in the midst of other configure output. diff --git a/m4/gnulib-comp.m4 b/m4/gnulib-comp.m4 index f577a6fa741..4472af81b70 100644 --- a/m4/gnulib-comp.m4 +++ b/m4/gnulib-comp.m4 @@ -120,7 +120,6 @@ AC_DEFUN([gl_EARLY], # Code from module libc-config: # Code from module libgmp: # Code from module limits-h: - # Code from module localtime-buffer: # Code from module lstat: # Code from module malloca: # Code from module manywarnings: @@ -508,7 +507,6 @@ AC_DEFUN([gl_INIT], gl_gnulib_enabled_be453cec5eecf5731a274f2de7f2db36=false gl_gnulib_enabled_a9786850e999ae65a836a6041e8e5ed1=false gl_gnulib_enabled_lchmod=false - gl_gnulib_enabled_2049e887c7e5308faad27b3f894bb8c9=false gl_gnulib_enabled_malloca=false gl_gnulib_enabled_5264294aa0a5557541b53c8c741f7f31=false gl_gnulib_enabled_open=false @@ -624,14 +622,6 @@ AC_DEFUN([gl_INIT], gl_gnulib_enabled_lchmod=true fi } - func_gl_gnulib_m4code_2049e887c7e5308faad27b3f894bb8c9 () - { - if ! $gl_gnulib_enabled_2049e887c7e5308faad27b3f894bb8c9; then - AC_REQUIRE([gl_LOCALTIME_BUFFER_DEFAULTS]) - AC_LIBOBJ([localtime-buffer]) - gl_gnulib_enabled_2049e887c7e5308faad27b3f894bb8c9=true - fi - } func_gl_gnulib_m4code_malloca () { if ! $gl_gnulib_enabled_malloca; then @@ -751,9 +741,6 @@ AC_DEFUN([gl_INIT], if case $host_os in mingw*) false;; *) test $HAVE_GETRANDOM = 0 || test $REPLACE_GETRANDOM = 1;; esac; then func_gl_gnulib_m4code_open fi - if test $NEED_LOCALTIME_BUFFER = 1; then - func_gl_gnulib_m4code_2049e887c7e5308faad27b3f894bb8c9 - fi if test $HAVE_READLINKAT = 0; then func_gl_gnulib_m4code_260941c0e5dc67ec9e87d1fb321c300b fi @@ -785,7 +772,6 @@ AC_DEFUN([gl_INIT], AM_CONDITIONAL([gl_GNULIB_ENABLED_be453cec5eecf5731a274f2de7f2db36], [$gl_gnulib_enabled_be453cec5eecf5731a274f2de7f2db36]) AM_CONDITIONAL([gl_GNULIB_ENABLED_a9786850e999ae65a836a6041e8e5ed1], [$gl_gnulib_enabled_a9786850e999ae65a836a6041e8e5ed1]) AM_CONDITIONAL([gl_GNULIB_ENABLED_lchmod], [$gl_gnulib_enabled_lchmod]) - AM_CONDITIONAL([gl_GNULIB_ENABLED_2049e887c7e5308faad27b3f894bb8c9], [$gl_gnulib_enabled_2049e887c7e5308faad27b3f894bb8c9]) AM_CONDITIONAL([gl_GNULIB_ENABLED_malloca], [$gl_gnulib_enabled_malloca]) AM_CONDITIONAL([gl_GNULIB_ENABLED_5264294aa0a5557541b53c8c741f7f31], [$gl_gnulib_enabled_5264294aa0a5557541b53c8c741f7f31]) AM_CONDITIONAL([gl_GNULIB_ENABLED_open], [$gl_gnulib_enabled_open]) @@ -1030,8 +1016,6 @@ AC_DEFUN([gl_FILE_LIST], [ lib/lchmod.c lib/libc-config.h lib/limits.in.h - lib/localtime-buffer.c - lib/localtime-buffer.h lib/lstat.c lib/malloca.c lib/malloca.h @@ -1176,7 +1160,6 @@ AC_DEFUN([gl_FILE_LIST], [ m4/lchmod.m4 m4/libgmp.m4 m4/limits-h.m4 - m4/localtime-buffer.m4 m4/lstat.m4 m4/malloca.m4 m4/manywarnings-c++.m4 diff --git a/m4/inttypes.m4 b/m4/inttypes.m4 index 224d0cdd8e2..28bac816b69 100644 --- a/m4/inttypes.m4 +++ b/m4/inttypes.m4 @@ -1,4 +1,4 @@ -# inttypes.m4 serial 29 +# inttypes.m4 serial 31 dnl Copyright (C) 2006-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -35,12 +35,19 @@ AC_DEFUN_ONCE([gl_INTTYPES_INCOMPLETE], # Ensure that the PRI* and SCN* macros are defined appropriately. AC_DEFUN([gl_INTTYPES_PRI_SCN], [ - AC_REQUIRE([gt_INTTYPES_PRI]) - PRIPTR_PREFIX= if test -n "$STDINT_H"; then - dnl Using the gnulib . It always defines intptr_t to 'long'. - PRIPTR_PREFIX='"l"' + dnl Using the gnulib . It defines intptr_t to 'long' or + dnl 'long long', depending on _WIN64. + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[ + #ifdef _WIN64 + LLP64 + #endif + ]]), + ], + [PRIPTR_PREFIX='"l"'], + [PRIPTR_PREFIX='"ll"']) else dnl Using the system's . for glpfx in '' l ll I64; do @@ -152,7 +159,6 @@ AC_DEFUN([gl_INTTYPES_H_DEFAULTS], REPLACE_STRTOUMAX=0; AC_SUBST([REPLACE_STRTOUMAX]) INT32_MAX_LT_INTMAX_MAX=1; AC_SUBST([INT32_MAX_LT_INTMAX_MAX]) INT64_MAX_EQ_LONG_MAX='defined _LP64'; AC_SUBST([INT64_MAX_EQ_LONG_MAX]) - PRI_MACROS_BROKEN=0; AC_SUBST([PRI_MACROS_BROKEN]) PRIPTR_PREFIX=__PRIPTR_PREFIX; AC_SUBST([PRIPTR_PREFIX]) UINT32_MAX_LT_UINTMAX_MAX=1; AC_SUBST([UINT32_MAX_LT_UINTMAX_MAX]) UINT64_MAX_EQ_ULONG_MAX='defined _LP64'; AC_SUBST([UINT64_MAX_EQ_ULONG_MAX]) diff --git a/m4/libgmp.m4 b/m4/libgmp.m4 index b569bb73462..82c065e2c2c 100644 --- a/m4/libgmp.m4 +++ b/m4/libgmp.m4 @@ -1,44 +1,67 @@ +# libgmp.m4 serial 4 # Configure the GMP library or a replacement. - dnl Copyright 2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. +dnl gl_LIBGMP +dnl Search for an installed libgmp. +dnl If found, set and AC_SUBST HAVE_LIBGMP=yes and the LIBGMP and LTLIBGMP +dnl variables, and augment the CPPFLAGS variable, and #define HAVE_LIBGMP to 1. +dnl Otherwise, set and AC_SUBST HAVE_LIBGMP=no and LIBGMP and LTLIBGMP to +dnl empty. + AC_DEFUN([gl_LIBGMP], [ AC_ARG_WITH([libgmp], [AS_HELP_STRING([--without-libgmp], [do not use the GNU Multiple Precision (GMP) library; this is the default on systems lacking libgmp.])]) - - AC_CHECK_HEADERS_ONCE([gmp.h]) - GMP_H=gmp.h - LIB_GMP= - - case $with_libgmp in - no) ;; - yes) GMP_H= LIB_GMP=-lgmp;; - *) if test "$ac_cv_header_gmp_h" = yes; then - gl_saved_LIBS=$LIBS + case "$with_libgmp" in + no) + HAVE_LIBGMP=no + LIBGMP= + LTLIBGMP= + ;; + *) + dnl Prefer AC_LIB_HAVE_LINKFLAGS if the havelib module is also in use. + m4_ifdef([gl_HAVE_MODULE_HAVELIB], + [AC_LIB_HAVE_LINKFLAGS([gmp], [], + [#include ], + [static const mp_limb_t x[2] = { 0x73, 0x55 }; + mpz_t tmp; + mpz_roinit_n (tmp, x, 2); + ], + [no])], + [gl_saved_LIBS=$LIBS AC_SEARCH_LIBS([__gmpz_roinit_n], [gmp]) LIBS=$gl_saved_LIBS case $ac_cv_search___gmpz_roinit_n in 'none needed') - GMP_H=;; + HAVE_LIBGMP=yes LIBGMP=;; -*) - GMP_H= LIB_GMP=$ac_cv_search___gmpz_roinit_n;; + HAVE_LIBGMP=yes LIBGMP=$ac_cv_search___gmpz_roinit_n;; + *) + HAVE_LIBGMP=no LIBGMP=;; esac - fi;; + LTLIBGMP=$LIBGMP + AC_SUBST([HAVE_LIBGMP]) + AC_SUBST([LIBGMP]) + AC_SUBST([LTLIBGMP])]) + if test "$with_libgmp,$HAVE_LIBGMP" = yes,no; then + AC_MSG_ERROR( + [GMP not found, although --with-libgmp was specified.m4_ifdef( + [AC_LIB_HAVE_LINKFLAGS], + [ Try specifying --with-libgmp-prefix=DIR.])]) + fi + ;; esac - - if test -z "$GMP_H"; then - AC_DEFINE([HAVE_GMP], 1, - [Define to 1 if you have the GMP library instead of just the - mini-gmp replacement.]) + if test $HAVE_LIBGMP = yes; then + GMP_H= + else + GMP_H=gmp.h fi - - AC_SUBST([LIB_GMP]) AC_SUBST([GMP_H]) AM_CONDITIONAL([GL_GENERATE_GMP_H], [test -n "$GMP_H"]) ]) diff --git a/m4/mktime.m4 b/m4/mktime.m4 index c00843f0f40..8d9b827fe21 100644 --- a/m4/mktime.m4 +++ b/m4/mktime.m4 @@ -1,4 +1,4 @@ -# serial 31 +# serial 32 dnl Copyright (C) 2002-2003, 2005-2007, 2009-2020 Free Software Foundation, dnl Inc. dnl This file is free software; the Free Software Foundation @@ -33,15 +33,15 @@ AC_DEFUN([gl_FUNC_MKTIME_WORKS], AC_CHECK_DECLS_ONCE([alarm]) AC_CHECK_FUNCS_ONCE([tzset]) AC_REQUIRE([gl_MULTIARCH]) - if test $APPLE_UNIVERSAL_BUILD = 1; then - # A universal build on Apple Mac OS X platforms. - # The test result would be 'yes' in 32-bit mode and 'no' in 64-bit mode. - # But we need a configuration result that is valid in both modes. - gl_cv_func_working_mktime=no - fi AC_CACHE_CHECK([for working mktime], [gl_cv_func_working_mktime], - [AC_RUN_IFELSE( - [AC_LANG_SOURCE( + [if test $APPLE_UNIVERSAL_BUILD = 1; then + # A universal build on Apple Mac OS X platforms. + # The test result would be 'yes' in 32-bit mode and 'no' in 64-bit mode. + # But we need a configuration result that is valid in both modes. + gl_cv_func_working_mktime="guessing no" + else + AC_RUN_IFELSE( + [AC_LANG_SOURCE( [[/* Test program from Paul Eggert and Tony Leneis. */ #include #include @@ -242,14 +242,15 @@ main () result |= 64; return result; }]])], - [gl_cv_func_working_mktime=yes], - [gl_cv_func_working_mktime=no], - [case "$host_os" in - # Guess no on native Windows. - mingw*) gl_cv_func_working_mktime="guessing no" ;; - *) gl_cv_func_working_mktime="$gl_cross_guess_normal" ;; - esac - ]) + [gl_cv_func_working_mktime=yes], + [gl_cv_func_working_mktime=no], + [case "$host_os" in + # Guess no on native Windows. + mingw*) gl_cv_func_working_mktime="guessing no" ;; + *) gl_cv_func_working_mktime="$gl_cross_guess_normal" ;; + esac + ]) + fi ]) ]) diff --git a/m4/multiarch.m4 b/m4/multiarch.m4 index 3c2034c5e00..2c61afbd76e 100644 --- a/m4/multiarch.m4 +++ b/m4/multiarch.m4 @@ -1,4 +1,4 @@ -# multiarch.m4 serial 7 +# multiarch.m4 serial 9 dnl Copyright (C) 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -21,37 +21,40 @@ dnl with or without modifications, as long as this notice is preserved. AC_DEFUN_ONCE([gl_MULTIARCH], [ dnl Code similar to autoconf-2.63 AC_C_BIGENDIAN. - gl_cv_c_multiarch=no - AC_COMPILE_IFELSE( - [AC_LANG_SOURCE( - [[#ifndef __APPLE_CC__ - not a universal capable compiler - #endif - typedef int dummy; - ]])], - [ - dnl Check for potential -arch flags. It is not universal unless - dnl there are at least two -arch flags with different values. - arch= - prev= - for word in ${CC} ${CFLAGS} ${CPPFLAGS} ${LDFLAGS}; do - if test -n "$prev"; then - case $word in - i?86 | x86_64 | ppc | ppc64) - if test -z "$arch" || test "$arch" = "$word"; then - arch="$word" - else - gl_cv_c_multiarch=yes - fi - ;; - esac - prev= - else - if test "x$word" = "x-arch"; then - prev=arch - fi - fi - done + AC_CACHE_CHECK([whether the compiler produces multi-arch binaries], + [gl_cv_c_multiarch], + [gl_cv_c_multiarch=no + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[#ifndef __APPLE_CC__ + not a universal capable compiler + #endif + typedef int dummy; + ]])], + [ + dnl Check for potential -arch flags. It is not universal unless + dnl there are at least two -arch flags with different values. + arch= + prev= + for word in ${CC} ${CFLAGS} ${CPPFLAGS} ${LDFLAGS}; do + if test -n "$prev"; then + case $word in + i?86 | x86_64 | ppc | ppc64 | arm | arm64) + if test -z "$arch" || test "$arch" = "$word"; then + arch="$word" + else + gl_cv_c_multiarch=yes + fi + ;; + esac + prev= + else + if test "x$word" = "x-arch"; then + prev=arch + fi + fi + done + ]) ]) if test $gl_cv_c_multiarch = yes; then APPLE_UNIVERSAL_BUILD=1 diff --git a/src/Makefile.in b/src/Makefile.in index 72d69fb7a3e..7141f16ec25 100644 --- a/src/Makefile.in +++ b/src/Makefile.in @@ -323,7 +323,7 @@ INTERVALS_H = dispextern.h intervals.h composite.h GETLOADAVG_LIBS = @GETLOADAVG_LIBS@ -LIB_GMP = @LIB_GMP@ +LIBGMP = @LIBGMP@ RUN_TEMACS = ./temacs @@ -530,7 +530,7 @@ LIBES = $(LIBS) $(W32_LIBS) $(LIBS_GNUSTEP) $(LIBX_BASE) $(LIBIMAGE) \ $(FREETYPE_LIBS) $(FONTCONFIG_LIBS) $(HARFBUZZ_LIBS) $(LIBOTF_LIBS) $(M17N_FLT_LIBS) \ $(LIBGNUTLS_LIBS) $(LIB_PTHREAD) $(GETADDRINFO_A_LIBS) $(LCMS2_LIBS) \ $(NOTIFY_LIBS) $(LIB_MATH) $(LIBZ) $(LIBMODULES) $(LIBSYSTEMD_LIBS) \ - $(JSON_LIBS) $(LIB_GMP) + $(JSON_LIBS) $(LIBGMP) ## FORCE it so that admin/unidata can decide whether this file is ## up-to-date. Although since charprop depends on bootstrap-emacs, diff --git a/test/Makefile.in b/test/Makefile.in index c4840670e61..d1da02e582c 100644 --- a/test/Makefile.in +++ b/test/Makefile.in @@ -256,7 +256,7 @@ FPIC_CFLAGS = -fPIC endif GMP_H = @GMP_H@ -LIB_GMP = @LIB_GMP@ +LIBGMP = @LIBGMP@ MODULE_CFLAGS = -I../src -I$(srcdir)/../src -I../lib -I$(srcdir)/../lib \ $(FPIC_CFLAGS) $(PROFILING_CFLAGS) \ @@ -271,7 +271,7 @@ src/emacs-module-tests.log src/emacs-module-tests.elc: $(test_module) $(test_module): $(test_module:${SO}=.c) ../src/emacs-module.h $(AM_V_at)${MKDIR_P} $(dir $@) $(AM_V_CCLD)$(CC) -shared $(CPPFLAGS) $(MODULE_CFLAGS) $(LDFLAGS) \ - -o $@ $< $(LIB_GMP) \ + -o $@ $< $(LIBGMP) \ $(and $(GMP_H),$(srcdir)/../lib/mini-gmp-gnulib.c) \ $(srcdir)/../lib/timespec.c $(srcdir)/../lib/gettime.c endif -- cgit v1.2.3 From 29064d02c31b08ae41d41a93fd1439718373b196 Mon Sep 17 00:00:00 2001 From: Philipp Stephani Date: Thu, 24 Dec 2020 16:48:40 +0100 Subject: Update Gnulib. All changes in this commit are autogenerated by running admin/merge-gnulib. --- build-aux/config.guess | 221 +++++++++-------- build-aux/config.sub | 60 ++--- build-aux/install-sh | 35 ++- doc/misc/texinfo.tex | 65 ++++- lib/attribute.h | 23 +- lib/c++defs.h | 8 + lib/canonicalize-lgpl.c | 381 +++++++++++++--------------- lib/careadlinkat.c | 22 +- lib/cdefs.h | 4 +- lib/fcntl.c | 4 +- lib/fcntl.in.h | 37 ++- lib/filemode.c | 14 -- lib/fpending.c | 7 +- lib/free.c | 33 +++ lib/gnulib.mk.in | 93 +++++-- lib/idx.h | 113 +++++++++ lib/intprops.h | 50 +++- lib/malloc/scratch_buffer.h | 135 ++++++++++ lib/malloc/scratch_buffer_grow.c | 56 +++++ lib/malloc/scratch_buffer_grow_preserve.c | 67 +++++ lib/malloc/scratch_buffer_set_array_size.c | 64 +++++ lib/rawmemchr.c | 136 ++++++++++ lib/rawmemchr.valgrind | 28 +++ lib/readlink.c | 48 +++- lib/readlinkat.c | 47 +++- lib/regex_internal.c | 19 +- lib/regex_internal.h | 8 + lib/scratch_buffer.h | 29 +++ lib/signal.in.h | 6 +- lib/stdint.in.h | 5 - lib/stdio-impl.h | 2 +- lib/stdio.in.h | 183 ++++++++++---- lib/stdlib.in.h | 169 ++++++++++++- lib/string.in.h | 36 ++- lib/sys_select.in.h | 9 +- lib/sys_stat.in.h | 32 ++- lib/tempname.c | 49 ++-- lib/time.in.h | 23 +- lib/time_rz.c | 16 +- lib/unistd.in.h | 386 +++++++++++++++++++++++------ lib/xalloc-oversized.h | 2 +- m4/alloca.m4 | 4 +- m4/extensions.m4 | 160 +++++++----- m4/fcntl.m4 | 52 ++-- m4/filemode.m4 | 3 +- m4/free.m4 | 49 ++++ m4/fsusage.m4 | 3 +- m4/gnulib-common.m4 | 63 ++--- m4/gnulib-comp.m4 | 92 +++++-- m4/largefile.m4 | 2 +- m4/mbstate_t.m4 | 11 +- m4/pid_t.m4 | 38 +++ m4/rawmemchr.m4 | 20 ++ m4/readlink.m4 | 61 ++++- m4/readlinkat.m4 | 13 +- m4/std-gnu11.m4 | 5 + m4/stdint.m4 | 10 +- m4/stdio_h.m4 | 8 +- m4/stdlib_h.m4 | 36 ++- m4/sys_types_h.m4 | 22 +- m4/unistd_h.m4 | 11 +- m4/vararrays.m4 | 14 +- 62 files changed, 2547 insertions(+), 855 deletions(-) create mode 100644 lib/free.c create mode 100644 lib/idx.h create mode 100644 lib/malloc/scratch_buffer.h create mode 100644 lib/malloc/scratch_buffer_grow.c create mode 100644 lib/malloc/scratch_buffer_grow_preserve.c create mode 100644 lib/malloc/scratch_buffer_set_array_size.c create mode 100644 lib/rawmemchr.c create mode 100644 lib/rawmemchr.valgrind create mode 100644 lib/scratch_buffer.h create mode 100644 m4/free.m4 create mode 100644 m4/pid_t.m4 create mode 100644 m4/rawmemchr.m4 (limited to 'build-aux/install-sh') diff --git a/build-aux/config.guess b/build-aux/config.guess index 9aff91cfd03..699b3a10b21 100755 --- a/build-aux/config.guess +++ b/build-aux/config.guess @@ -2,7 +2,7 @@ # Attempt to guess a canonical system name. # Copyright 1992-2020 Free Software Foundation, Inc. -timestamp='2020-08-17' +timestamp='2020-11-19' # This file is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by @@ -27,12 +27,12 @@ timestamp='2020-08-17' # Originally written by Per Bothner; maintained since 2000 by Ben Elliston. # # You can get the latest version of this script from: -# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess +# https://git.savannah.gnu.org/cgit/config.git/plain/config.guess # # Please send patches to . -me=`echo "$0" | sed -e 's,.*/,,'` +me=$(echo "$0" | sed -e 's,.*/,,') usage="\ Usage: $0 [OPTION] @@ -103,7 +103,7 @@ set_cc_for_build() { test "$tmp" && return 0 : "${TMPDIR=/tmp}" # shellcheck disable=SC2039 - { tmp=`(umask 077 && mktemp -d "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" ; } || + { tmp=$( (umask 077 && mktemp -d "$TMPDIR/cgXXXXXX") 2>/dev/null) && test -n "$tmp" && test -d "$tmp" ; } || { test -n "$RANDOM" && tmp=$TMPDIR/cg$$-$RANDOM && (umask 077 && mkdir "$tmp" 2>/dev/null) ; } || { tmp=$TMPDIR/cg-$$ && (umask 077 && mkdir "$tmp" 2>/dev/null) && echo "Warning: creating insecure temp directory" >&2 ; } || { echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; } @@ -131,16 +131,14 @@ if test -f /.attbin/uname ; then PATH=$PATH:/.attbin ; export PATH fi -UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown -UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown -UNAME_SYSTEM=`(uname -s) 2>/dev/null` || UNAME_SYSTEM=unknown -UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown +UNAME_MACHINE=$( (uname -m) 2>/dev/null) || UNAME_MACHINE=unknown +UNAME_RELEASE=$( (uname -r) 2>/dev/null) || UNAME_RELEASE=unknown +UNAME_SYSTEM=$( (uname -s) 2>/dev/null) || UNAME_SYSTEM=unknown +UNAME_VERSION=$( (uname -v) 2>/dev/null) || UNAME_VERSION=unknown case "$UNAME_SYSTEM" in Linux|GNU|GNU/*) - # If the system lacks a compiler, then just pick glibc. - # We could probably try harder. - LIBC=gnu + LIBC=unknown set_cc_for_build cat <<-EOF > "$dummy.c" @@ -149,17 +147,29 @@ Linux|GNU|GNU/*) LIBC=uclibc #elif defined(__dietlibc__) LIBC=dietlibc - #else + #elif defined(__GLIBC__) LIBC=gnu + #else + #include + /* First heuristic to detect musl libc. */ + #ifdef __DEFINED_va_list + LIBC=musl + #endif #endif EOF - eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^LIBC' | sed 's, ,,g'`" + eval "$($CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^LIBC' | sed 's, ,,g')" - # If ldd exists, use it to detect musl libc. - if command -v ldd >/dev/null && \ - ldd --version 2>&1 | grep -q ^musl - then - LIBC=musl + # Second heuristic to detect musl libc. + if [ "$LIBC" = unknown ] && + command -v ldd >/dev/null && + ldd --version 2>&1 | grep -q ^musl; then + LIBC=musl + fi + + # If the system lacks a compiler, then just pick glibc. + # We could probably try harder. + if [ "$LIBC" = unknown ]; then + LIBC=gnu fi ;; esac @@ -179,19 +189,20 @@ case "$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in # Note: NetBSD doesn't particularly care about the vendor # portion of the name. We always set it to "unknown". sysctl="sysctl -n hw.machine_arch" - UNAME_MACHINE_ARCH=`(uname -p 2>/dev/null || \ + UNAME_MACHINE_ARCH=$( (uname -p 2>/dev/null || \ "/sbin/$sysctl" 2>/dev/null || \ "/usr/sbin/$sysctl" 2>/dev/null || \ - echo unknown)` + echo unknown)) case "$UNAME_MACHINE_ARCH" in + aarch64eb) machine=aarch64_be-unknown ;; armeb) machine=armeb-unknown ;; arm*) machine=arm-unknown ;; sh3el) machine=shl-unknown ;; sh3eb) machine=sh-unknown ;; sh5el) machine=sh5le-unknown ;; earmv*) - arch=`echo "$UNAME_MACHINE_ARCH" | sed -e 's,^e\(armv[0-9]\).*$,\1,'` - endian=`echo "$UNAME_MACHINE_ARCH" | sed -ne 's,^.*\(eb\)$,\1,p'` + arch=$(echo "$UNAME_MACHINE_ARCH" | sed -e 's,^e\(armv[0-9]\).*$,\1,') + endian=$(echo "$UNAME_MACHINE_ARCH" | sed -ne 's,^.*\(eb\)$,\1,p') machine="${arch}${endian}"-unknown ;; *) machine="$UNAME_MACHINE_ARCH"-unknown ;; @@ -222,7 +233,7 @@ case "$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in case "$UNAME_MACHINE_ARCH" in earm*) expr='s/^earmv[0-9]/-eabi/;s/eb$//' - abi=`echo "$UNAME_MACHINE_ARCH" | sed -e "$expr"` + abi=$(echo "$UNAME_MACHINE_ARCH" | sed -e "$expr") ;; esac # The OS release @@ -235,7 +246,7 @@ case "$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in release='-gnu' ;; *) - release=`echo "$UNAME_RELEASE" | sed -e 's/[-_].*//' | cut -d. -f1,2` + release=$(echo "$UNAME_RELEASE" | sed -e 's/[-_].*//' | cut -d. -f1,2) ;; esac # Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM: @@ -244,15 +255,15 @@ case "$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in echo "$machine-${os}${release}${abi-}" exit ;; *:Bitrig:*:*) - UNAME_MACHINE_ARCH=`arch | sed 's/Bitrig.//'` + UNAME_MACHINE_ARCH=$(arch | sed 's/Bitrig.//') echo "$UNAME_MACHINE_ARCH"-unknown-bitrig"$UNAME_RELEASE" exit ;; *:OpenBSD:*:*) - UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'` + UNAME_MACHINE_ARCH=$(arch | sed 's/OpenBSD.//') echo "$UNAME_MACHINE_ARCH"-unknown-openbsd"$UNAME_RELEASE" exit ;; *:LibertyBSD:*:*) - UNAME_MACHINE_ARCH=`arch | sed 's/^.*BSD\.//'` + UNAME_MACHINE_ARCH=$(arch | sed 's/^.*BSD\.//') echo "$UNAME_MACHINE_ARCH"-unknown-libertybsd"$UNAME_RELEASE" exit ;; *:MidnightBSD:*:*) @@ -288,17 +299,17 @@ case "$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in alpha:OSF1:*:*) case $UNAME_RELEASE in *4.0) - UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'` + UNAME_RELEASE=$(/usr/sbin/sizer -v | awk '{print $3}') ;; *5.*) - UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'` + UNAME_RELEASE=$(/usr/sbin/sizer -v | awk '{print $4}') ;; esac # According to Compaq, /usr/sbin/psrinfo has been available on # OSF/1 and Tru64 systems produced since 1995. I hope that # covers most systems running today. This code pipes the CPU # types through head -n 1, so we only detect the type of CPU 0. - ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^ The alpha \(.*\) processor.*$/\1/p' | head -n 1` + ALPHA_CPU_TYPE=$(/usr/sbin/psrinfo -v | sed -n -e 's/^ The alpha \(.*\) processor.*$/\1/p' | head -n 1) case "$ALPHA_CPU_TYPE" in "EV4 (21064)") UNAME_MACHINE=alpha ;; @@ -336,7 +347,7 @@ case "$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in # A Tn.n version is a released field test version. # A Xn.n version is an unreleased experimental baselevel. # 1.2 uses "1.2" for uname -r. - echo "$UNAME_MACHINE"-dec-osf"`echo "$UNAME_RELEASE" | sed -e 's/^[PVTX]//' | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz`" + echo "$UNAME_MACHINE"-dec-osf"$(echo "$UNAME_RELEASE" | sed -e 's/^[PVTX]//' | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz)" # Reset EXIT trap before exiting to avoid spurious non-zero exit code. exitcode=$? trap '' 0 @@ -370,7 +381,7 @@ case "$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in exit ;; Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*) # akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE. - if test "`(/bin/universe) 2>/dev/null`" = att ; then + if test "$( (/bin/universe) 2>/dev/null)" = att ; then echo pyramid-pyramid-sysv3 else echo pyramid-pyramid-bsd @@ -383,17 +394,17 @@ case "$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in echo sparc-icl-nx6 exit ;; DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*) - case `/usr/bin/uname -p` in + case $(/usr/bin/uname -p) in sparc) echo sparc-icl-nx7; exit ;; esac ;; s390x:SunOS:*:*) - echo "$UNAME_MACHINE"-ibm-solaris2"`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`" + echo "$UNAME_MACHINE"-ibm-solaris2"$(echo "$UNAME_RELEASE" | sed -e 's/[^.]*//')" exit ;; sun4H:SunOS:5.*:*) - echo sparc-hal-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`" + echo sparc-hal-solaris2"$(echo "$UNAME_RELEASE"|sed -e 's/[^.]*//')" exit ;; sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*) - echo sparc-sun-solaris2"`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`" + echo sparc-sun-solaris2"$(echo "$UNAME_RELEASE" | sed -e 's/[^.]*//')" exit ;; i86pc:AuroraUX:5.*:* | i86xen:AuroraUX:5.*:*) echo i386-pc-auroraux"$UNAME_RELEASE" @@ -412,30 +423,30 @@ case "$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in SUN_ARCH=x86_64 fi fi - echo "$SUN_ARCH"-pc-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`" + echo "$SUN_ARCH"-pc-solaris2"$(echo "$UNAME_RELEASE"|sed -e 's/[^.]*//')" exit ;; sun4*:SunOS:6*:*) # According to config.sub, this is the proper way to canonicalize # SunOS6. Hard to guess exactly what SunOS6 will be like, but # it's likely to be more like Solaris than SunOS4. - echo sparc-sun-solaris3"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`" + echo sparc-sun-solaris3"$(echo "$UNAME_RELEASE"|sed -e 's/[^.]*//')" exit ;; sun4*:SunOS:*:*) - case "`/usr/bin/arch -k`" in + case "$(/usr/bin/arch -k)" in Series*|S4*) - UNAME_RELEASE=`uname -v` + UNAME_RELEASE=$(uname -v) ;; esac # Japanese Language versions have a version number like `4.1.3-JL'. - echo sparc-sun-sunos"`echo "$UNAME_RELEASE"|sed -e 's/-/_/'`" + echo sparc-sun-sunos"$(echo "$UNAME_RELEASE"|sed -e 's/-/_/')" exit ;; sun3*:SunOS:*:*) echo m68k-sun-sunos"$UNAME_RELEASE" exit ;; sun*:*:4.2BSD:*) - UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null` + UNAME_RELEASE=$( (sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null) test "x$UNAME_RELEASE" = x && UNAME_RELEASE=3 - case "`/bin/arch`" in + case "$(/bin/arch)" in sun3) echo m68k-sun-sunos"$UNAME_RELEASE" ;; @@ -515,8 +526,8 @@ case "$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in } EOF $CC_FOR_BUILD -o "$dummy" "$dummy.c" && - dummyarg=`echo "$UNAME_RELEASE" | sed -n 's/\([0-9]*\).*/\1/p'` && - SYSTEM_NAME=`"$dummy" "$dummyarg"` && + dummyarg=$(echo "$UNAME_RELEASE" | sed -n 's/\([0-9]*\).*/\1/p') && + SYSTEM_NAME=$("$dummy" "$dummyarg") && { echo "$SYSTEM_NAME"; exit; } echo mips-mips-riscos"$UNAME_RELEASE" exit ;; @@ -543,7 +554,7 @@ EOF exit ;; AViiON:dgux:*:*) # DG/UX returns AViiON for all architectures - UNAME_PROCESSOR=`/usr/bin/uname -p` + UNAME_PROCESSOR=$(/usr/bin/uname -p) if test "$UNAME_PROCESSOR" = mc88100 || test "$UNAME_PROCESSOR" = mc88110 then if test "$TARGET_BINARY_INTERFACE"x = m88kdguxelfx || \ @@ -571,17 +582,17 @@ EOF echo m68k-tektronix-bsd exit ;; *:IRIX*:*:*) - echo mips-sgi-irix"`echo "$UNAME_RELEASE"|sed -e 's/-/_/g'`" + echo mips-sgi-irix"$(echo "$UNAME_RELEASE"|sed -e 's/-/_/g')" exit ;; ????????:AIX?:[12].1:2) # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX. echo romp-ibm-aix # uname -m gives an 8 hex-code CPU id - exit ;; # Note that: echo "'`uname -s`'" gives 'AIX ' + exit ;; # Note that: echo "'$(uname -s)'" gives 'AIX ' i*86:AIX:*:*) echo i386-ibm-aix exit ;; ia64:AIX:*:*) if test -x /usr/bin/oslevel ; then - IBM_REV=`/usr/bin/oslevel` + IBM_REV=$(/usr/bin/oslevel) else IBM_REV="$UNAME_VERSION.$UNAME_RELEASE" fi @@ -601,7 +612,7 @@ EOF exit(0); } EOF - if $CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=`"$dummy"` + if $CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=$("$dummy") then echo "$SYSTEM_NAME" else @@ -614,15 +625,15 @@ EOF fi exit ;; *:AIX:*:[4567]) - IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'` + IBM_CPU_ID=$(/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }') if /usr/sbin/lsattr -El "$IBM_CPU_ID" | grep ' POWER' >/dev/null 2>&1; then IBM_ARCH=rs6000 else IBM_ARCH=powerpc fi if test -x /usr/bin/lslpp ; then - IBM_REV=`/usr/bin/lslpp -Lqc bos.rte.libc | - awk -F: '{ print $3 }' | sed s/[0-9]*$/0/` + IBM_REV=$(/usr/bin/lslpp -Lqc bos.rte.libc | + awk -F: '{ print $3 }' | sed s/[0-9]*$/0/) else IBM_REV="$UNAME_VERSION.$UNAME_RELEASE" fi @@ -650,14 +661,14 @@ EOF echo m68k-hp-bsd4.4 exit ;; 9000/[34678]??:HP-UX:*:*) - HPUX_REV=`echo "$UNAME_RELEASE"|sed -e 's/[^.]*.[0B]*//'` + HPUX_REV=$(echo "$UNAME_RELEASE"|sed -e 's/[^.]*.[0B]*//') case "$UNAME_MACHINE" in 9000/31?) HP_ARCH=m68000 ;; 9000/[34]??) HP_ARCH=m68k ;; 9000/[678][0-9][0-9]) if test -x /usr/bin/getconf; then - sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null` - sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null` + sc_cpu_version=$(/usr/bin/getconf SC_CPU_VERSION 2>/dev/null) + sc_kernel_bits=$(/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null) case "$sc_cpu_version" in 523) HP_ARCH=hppa1.0 ;; # CPU_PA_RISC1_0 528) HP_ARCH=hppa1.1 ;; # CPU_PA_RISC1_1 @@ -704,7 +715,7 @@ EOF exit (0); } EOF - (CCOPTS="" $CC_FOR_BUILD -o "$dummy" "$dummy.c" 2>/dev/null) && HP_ARCH=`"$dummy"` + (CCOPTS="" $CC_FOR_BUILD -o "$dummy" "$dummy.c" 2>/dev/null) && HP_ARCH=$("$dummy") test -z "$HP_ARCH" && HP_ARCH=hppa fi ;; esac @@ -732,7 +743,7 @@ EOF echo "$HP_ARCH"-hp-hpux"$HPUX_REV" exit ;; ia64:HP-UX:*:*) - HPUX_REV=`echo "$UNAME_RELEASE"|sed -e 's/[^.]*.[0B]*//'` + HPUX_REV=$(echo "$UNAME_RELEASE"|sed -e 's/[^.]*.[0B]*//') echo ia64-hp-hpux"$HPUX_REV" exit ;; 3050*:HI-UX:*:*) @@ -762,7 +773,7 @@ EOF exit (0); } EOF - $CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=`"$dummy"` && + $CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=$("$dummy") && { echo "$SYSTEM_NAME"; exit; } echo unknown-hitachi-hiuxwe2 exit ;; @@ -831,14 +842,14 @@ EOF echo craynv-cray-unicosmp"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/' exit ;; F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*) - FUJITSU_PROC=`uname -m | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz` - FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'` - FUJITSU_REL=`echo "$UNAME_RELEASE" | sed -e 's/ /_/'` + FUJITSU_PROC=$(uname -m | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz) + FUJITSU_SYS=$(uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///') + FUJITSU_REL=$(echo "$UNAME_RELEASE" | sed -e 's/ /_/') echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" exit ;; 5000:UNIX_System_V:4.*:*) - FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'` - FUJITSU_REL=`echo "$UNAME_RELEASE" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/ /_/'` + FUJITSU_SYS=$(uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///') + FUJITSU_REL=$(echo "$UNAME_RELEASE" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/ /_/') echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" exit ;; i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*) @@ -851,25 +862,25 @@ EOF echo "$UNAME_MACHINE"-unknown-bsdi"$UNAME_RELEASE" exit ;; arm:FreeBSD:*:*) - UNAME_PROCESSOR=`uname -p` + UNAME_PROCESSOR=$(uname -p) set_cc_for_build if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \ | grep -q __ARM_PCS_VFP then - echo "${UNAME_PROCESSOR}"-unknown-freebsd"`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`"-gnueabi + echo "${UNAME_PROCESSOR}"-unknown-freebsd"$(echo ${UNAME_RELEASE}|sed -e 's/[-(].*//')"-gnueabi else - echo "${UNAME_PROCESSOR}"-unknown-freebsd"`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`"-gnueabihf + echo "${UNAME_PROCESSOR}"-unknown-freebsd"$(echo ${UNAME_RELEASE}|sed -e 's/[-(].*//')"-gnueabihf fi exit ;; *:FreeBSD:*:*) - UNAME_PROCESSOR=`/usr/bin/uname -p` + UNAME_PROCESSOR=$(/usr/bin/uname -p) case "$UNAME_PROCESSOR" in amd64) UNAME_PROCESSOR=x86_64 ;; i386) UNAME_PROCESSOR=i586 ;; esac - echo "$UNAME_PROCESSOR"-unknown-freebsd"`echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`" + echo "$UNAME_PROCESSOR"-unknown-freebsd"$(echo "$UNAME_RELEASE"|sed -e 's/[-(].*//')" exit ;; i*:CYGWIN*:*) echo "$UNAME_MACHINE"-pc-cygwin @@ -905,15 +916,15 @@ EOF echo x86_64-pc-cygwin exit ;; prep*:SunOS:5.*:*) - echo powerpcle-unknown-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`" + echo powerpcle-unknown-solaris2"$(echo "$UNAME_RELEASE"|sed -e 's/[^.]*//')" exit ;; *:GNU:*:*) # the GNU system - echo "`echo "$UNAME_MACHINE"|sed -e 's,[-/].*$,,'`-unknown-$LIBC`echo "$UNAME_RELEASE"|sed -e 's,/.*$,,'`" + echo "$(echo "$UNAME_MACHINE"|sed -e 's,[-/].*$,,')-unknown-$LIBC$(echo "$UNAME_RELEASE"|sed -e 's,/.*$,,')" exit ;; *:GNU/*:*:*) # other systems with GNU libc and userland - echo "$UNAME_MACHINE-unknown-`echo "$UNAME_SYSTEM" | sed 's,^[^/]*/,,' | tr "[:upper:]" "[:lower:]"``echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`-$LIBC" + echo "$UNAME_MACHINE-unknown-$(echo "$UNAME_SYSTEM" | sed 's,^[^/]*/,,' | tr "[:upper:]" "[:lower:]")$(echo "$UNAME_RELEASE"|sed -e 's/[-(].*//')-$LIBC" exit ;; *:Minix:*:*) echo "$UNAME_MACHINE"-unknown-minix @@ -926,7 +937,7 @@ EOF echo "$UNAME_MACHINE"-unknown-linux-"$LIBC" exit ;; alpha:Linux:*:*) - case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' /proc/cpuinfo 2>/dev/null` in + case $(sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' /proc/cpuinfo 2>/dev/null) in EV5) UNAME_MACHINE=alphaev5 ;; EV56) UNAME_MACHINE=alphaev56 ;; PCA56) UNAME_MACHINE=alphapca56 ;; @@ -1035,7 +1046,7 @@ EOF #endif #endif EOF - eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^CPU\|^MIPS_ENDIAN\|^LIBCABI'`" + eval "$($CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^CPU\|^MIPS_ENDIAN\|^LIBCABI')" test "x$CPU" != x && { echo "$CPU${MIPS_ENDIAN}-unknown-linux-$LIBCABI"; exit; } ;; mips64el:Linux:*:*) @@ -1055,7 +1066,7 @@ EOF exit ;; parisc:Linux:*:* | hppa:Linux:*:*) # Look for CPU level - case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in + case $(grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2) in PA7*) echo hppa1.1-unknown-linux-"$LIBC" ;; PA8*) echo hppa2.0-unknown-linux-"$LIBC" ;; *) echo hppa-unknown-linux-"$LIBC" ;; @@ -1145,7 +1156,7 @@ EOF echo "$UNAME_MACHINE"-pc-msdosdjgpp exit ;; i*86:*:4.*:*) - UNAME_REL=`echo "$UNAME_RELEASE" | sed 's/\/MP$//'` + UNAME_REL=$(echo "$UNAME_RELEASE" | sed 's/\/MP$//') if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then echo "$UNAME_MACHINE"-univel-sysv"$UNAME_REL" else @@ -1154,7 +1165,7 @@ EOF exit ;; i*86:*:5:[678]*) # UnixWare 7.x, OpenUNIX and OpenServer 6. - case `/bin/uname -X | grep "^Machine"` in + case $(/bin/uname -X | grep "^Machine") in *486*) UNAME_MACHINE=i486 ;; *Pentium) UNAME_MACHINE=i586 ;; *Pent*|*Celeron) UNAME_MACHINE=i686 ;; @@ -1163,10 +1174,10 @@ EOF exit ;; i*86:*:3.2:*) if test -f /usr/options/cb.name; then - UNAME_REL=`sed -n 's/.*Version //p' /dev/null >/dev/null ; then - UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')` + UNAME_REL=$( (/bin/uname -X|grep Release|sed -e 's/.*= //')) (/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486 (/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \ && UNAME_MACHINE=i586 @@ -1216,7 +1227,7 @@ EOF 3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0) OS_REL='' test -r /etc/.relid \ - && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` + && OS_REL=.$(sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid) /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ && { echo i486-ncr-sysv4.3"$OS_REL"; exit; } /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ @@ -1227,7 +1238,7 @@ EOF NCR*:*:4.2:* | MPRAS*:*:4.2:*) OS_REL='.3' test -r /etc/.relid \ - && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` + && OS_REL=.$(sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid) /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ && { echo i486-ncr-sysv4.3"$OS_REL"; exit; } /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ @@ -1260,7 +1271,7 @@ EOF exit ;; *:SINIX-*:*:*) if uname -p 2>/dev/null >/dev/null ; then - UNAME_MACHINE=`(uname -p) 2>/dev/null` + UNAME_MACHINE=$( (uname -p) 2>/dev/null) echo "$UNAME_MACHINE"-sni-sysv4 else echo ns32k-sni-sysv @@ -1346,7 +1357,7 @@ EOF echo aarch64-apple-darwin"$UNAME_RELEASE" exit ;; *:Darwin:*:*) - UNAME_PROCESSOR=`uname -p` + UNAME_PROCESSOR=$(uname -p) case $UNAME_PROCESSOR in unknown) UNAME_PROCESSOR=powerpc ;; esac @@ -1383,7 +1394,7 @@ EOF echo "$UNAME_PROCESSOR"-apple-darwin"$UNAME_RELEASE" exit ;; *:procnto*:*:* | *:QNX:[0123456789]*:*) - UNAME_PROCESSOR=`uname -p` + UNAME_PROCESSOR=$(uname -p) if test "$UNAME_PROCESSOR" = x86; then UNAME_PROCESSOR=i386 UNAME_MACHINE=pc @@ -1451,10 +1462,10 @@ EOF echo mips-sei-seiux"$UNAME_RELEASE" exit ;; *:DragonFly:*:*) - echo "$UNAME_MACHINE"-unknown-dragonfly"`echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`" + echo "$UNAME_MACHINE"-unknown-dragonfly"$(echo "$UNAME_RELEASE"|sed -e 's/[-(].*//')" exit ;; *:*VMS:*:*) - UNAME_MACHINE=`(uname -p) 2>/dev/null` + UNAME_MACHINE=$( (uname -p) 2>/dev/null) case "$UNAME_MACHINE" in A*) echo alpha-dec-vms ; exit ;; I*) echo ia64-dec-vms ; exit ;; @@ -1464,7 +1475,7 @@ EOF echo i386-pc-xenix exit ;; i*86:skyos:*:*) - echo "$UNAME_MACHINE"-pc-skyos"`echo "$UNAME_RELEASE" | sed -e 's/ .*$//'`" + echo "$UNAME_MACHINE"-pc-skyos"$(echo "$UNAME_RELEASE" | sed -e 's/ .*$//')" exit ;; i*86:rdos:*:*) echo "$UNAME_MACHINE"-pc-rdos @@ -1522,7 +1533,7 @@ main () #define __ARCHITECTURE__ "m68k" #endif int version; - version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`; + version=$( (hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null); if (version < 4) printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version); else @@ -1614,7 +1625,7 @@ main () } EOF -$CC_FOR_BUILD -o "$dummy" "$dummy.c" 2>/dev/null && SYSTEM_NAME=`$dummy` && +$CC_FOR_BUILD -o "$dummy" "$dummy.c" 2>/dev/null && SYSTEM_NAME=$($dummy) && { echo "$SYSTEM_NAME"; exit; } # Apollos put the system type in the environment. @@ -1639,14 +1650,14 @@ This script (version $timestamp), has failed to recognize the operating system you are using. If your script is old, overwrite *all* copies of config.guess and config.sub with the latest versions from: - https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess + https://git.savannah.gnu.org/cgit/config.git/plain/config.guess and - https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub + https://git.savannah.gnu.org/cgit/config.git/plain/config.sub EOF -year=`echo $timestamp | sed 's,-.*,,'` +year=$(echo $timestamp | sed 's,-.*,,') # shellcheck disable=SC2003 -if test "`expr "\`date +%Y\`" - "$year"`" -lt 3 ; then +if test "$(expr "$(date +%Y)" - "$year")" -lt 3 ; then cat >&2 </dev/null || echo unknown` -uname -r = `(uname -r) 2>/dev/null || echo unknown` -uname -s = `(uname -s) 2>/dev/null || echo unknown` -uname -v = `(uname -v) 2>/dev/null || echo unknown` +uname -m = $( (uname -m) 2>/dev/null || echo unknown) +uname -r = $( (uname -r) 2>/dev/null || echo unknown) +uname -s = $( (uname -s) 2>/dev/null || echo unknown) +uname -v = $( (uname -v) 2>/dev/null || echo unknown) -/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null` -/bin/uname -X = `(/bin/uname -X) 2>/dev/null` +/usr/bin/uname -p = $( (/usr/bin/uname -p) 2>/dev/null) +/bin/uname -X = $( (/bin/uname -X) 2>/dev/null) -hostinfo = `(hostinfo) 2>/dev/null` -/bin/universe = `(/bin/universe) 2>/dev/null` -/usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null` -/bin/arch = `(/bin/arch) 2>/dev/null` -/usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null` -/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null` +hostinfo = $( (hostinfo) 2>/dev/null) +/bin/universe = $( (/bin/universe) 2>/dev/null) +/usr/bin/arch -k = $( (/usr/bin/arch -k) 2>/dev/null) +/bin/arch = $( (/bin/arch) 2>/dev/null) +/usr/bin/oslevel = $( (/usr/bin/oslevel) 2>/dev/null) +/usr/convex/getsysinfo = $( (/usr/convex/getsysinfo) 2>/dev/null) UNAME_MACHINE = "$UNAME_MACHINE" UNAME_RELEASE = "$UNAME_RELEASE" diff --git a/build-aux/config.sub b/build-aux/config.sub index 0753e308458..90bb8aeda63 100755 --- a/build-aux/config.sub +++ b/build-aux/config.sub @@ -2,7 +2,7 @@ # Configuration validation subroutine script. # Copyright 1992-2020 Free Software Foundation, Inc. -timestamp='2020-08-17' +timestamp='2020-12-22' # This file is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by @@ -33,7 +33,7 @@ timestamp='2020-08-17' # Otherwise, we print the canonical config type on stdout and succeed. # You can get the latest version of this script from: -# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub +# https://git.savannah.gnu.org/cgit/config.git/plain/config.sub # This file is supposed to be the same for all GNU packages # and recognize all the CPU types, system types and aliases @@ -50,7 +50,7 @@ timestamp='2020-08-17' # CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM # It is wrong to echo any other type of specification. -me=`echo "$0" | sed -e 's,.*/,,'` +me=$(echo "$0" | sed -e 's,.*/,,') usage="\ Usage: $0 [OPTION] CPU-MFR-OPSYS or ALIAS @@ -769,22 +769,22 @@ case $basic_machine in vendor=hp ;; i*86v32) - cpu=`echo "$1" | sed -e 's/86.*/86/'` + cpu=$(echo "$1" | sed -e 's/86.*/86/') vendor=pc basic_os=sysv32 ;; i*86v4*) - cpu=`echo "$1" | sed -e 's/86.*/86/'` + cpu=$(echo "$1" | sed -e 's/86.*/86/') vendor=pc basic_os=sysv4 ;; i*86v) - cpu=`echo "$1" | sed -e 's/86.*/86/'` + cpu=$(echo "$1" | sed -e 's/86.*/86/') vendor=pc basic_os=sysv ;; i*86sol2) - cpu=`echo "$1" | sed -e 's/86.*/86/'` + cpu=$(echo "$1" | sed -e 's/86.*/86/') vendor=pc basic_os=solaris2 ;; @@ -917,7 +917,7 @@ case $basic_machine in ;; leon-*|leon[3-9]-*) cpu=sparc - vendor=`echo "$basic_machine" | sed 's/-.*//'` + vendor=$(echo "$basic_machine" | sed 's/-.*//') ;; *-*) @@ -1084,7 +1084,7 @@ case $cpu-$vendor in cpu=mipsisa64sb1el ;; sh5e[lb]-*) - cpu=`echo "$cpu" | sed 's/^\(sh.\)e\(.\)$/\1\2e/'` + cpu=$(echo "$cpu" | sed 's/^\(sh.\)e\(.\)$/\1\2e/') ;; spur-*) cpu=spur @@ -1102,7 +1102,7 @@ case $cpu-$vendor in cpu=x86_64 ;; xscale-* | xscalee[bl]-*) - cpu=`echo "$cpu" | sed 's/^xscale/arm/'` + cpu=$(echo "$cpu" | sed 's/^xscale/arm/') ;; arm64-*) cpu=aarch64 @@ -1185,6 +1185,7 @@ case $cpu-$vendor in | k1om \ | le32 | le64 \ | lm32 \ + | loongarch32 | loongarch64 | loongarchx32 \ | m32c | m32r | m32rle \ | m5200 | m68000 | m680[012346]0 | m68360 | m683?2 | m68k \ | m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x \ @@ -1241,6 +1242,7 @@ case $cpu-$vendor in | sparcv8 | sparcv9 | sparcv9b | sparcv9v | sv1 | sx* \ | spu \ | tahoe \ + | thumbv7* \ | tic30 | tic4x | tic54x | tic55x | tic6x | tic80 \ | tron \ | ubicom32 \ @@ -1286,11 +1288,15 @@ then case $basic_os in gnu/linux*) kernel=linux - os=`echo $basic_os | sed -e 's|gnu/linux|gnu|'` + os=$(echo $basic_os | sed -e 's|gnu/linux|gnu|') + ;; + os2-emx) + kernel=os2 + os=$(echo $basic_os | sed -e 's|os2-emx|emx|') ;; nto-qnx*) kernel=nto - os=`echo $basic_os | sed -e 's|nto-qnx|qnx|'` + os=$(echo $basic_os | sed -e 's|nto-qnx|qnx|') ;; *-*) # shellcheck disable=SC2162 @@ -1301,11 +1307,11 @@ EOF # Default OS when just kernel was specified nto*) kernel=nto - os=`echo $basic_os | sed -e 's|nto|qnx|'` + os=$(echo $basic_os | sed -e 's|nto|qnx|') ;; linux*) kernel=linux - os=`echo $basic_os | sed -e 's|linux|gnu|'` + os=$(echo $basic_os | sed -e 's|linux|gnu|') ;; *) kernel= @@ -1326,7 +1332,7 @@ case $os in os=cnk ;; solaris1 | solaris1.*) - os=`echo $os | sed -e 's|solaris1|sunos4|'` + os=$(echo $os | sed -e 's|solaris1|sunos4|') ;; solaris) os=solaris2 @@ -1355,7 +1361,7 @@ case $os in os=sco3.2v4 ;; sco3.2.[4-9]*) - os=`echo $os | sed -e 's/sco3.2./sco3.2v/'` + os=$(echo $os | sed -e 's/sco3.2./sco3.2v/') ;; sco*v* | scout) # Don't match below @@ -1367,13 +1373,7 @@ case $os in os=psos ;; qnx*) - case $cpu in - x86 | i*86) - ;; - *) - os=nto-$os - ;; - esac + os=qnx ;; hiux*) os=hiuxwe2 @@ -1391,7 +1391,7 @@ case $os in os=lynxos ;; mac[0-9]*) - os=`echo "$os" | sed -e 's|mac|macos|'` + os=$(echo "$os" | sed -e 's|mac|macos|') ;; opened*) os=openedition @@ -1400,10 +1400,10 @@ case $os in os=os400 ;; sunos5*) - os=`echo "$os" | sed -e 's|sunos5|solaris2|'` + os=$(echo "$os" | sed -e 's|sunos5|solaris2|') ;; sunos6*) - os=`echo "$os" | sed -e 's|sunos6|solaris3|'` + os=$(echo "$os" | sed -e 's|sunos6|solaris3|') ;; wince*) os=wince @@ -1437,7 +1437,7 @@ case $os in ;; # Preserve the version number of sinix5. sinix5.*) - os=`echo $os | sed -e 's|sinix|sysv|'` + os=$(echo $os | sed -e 's|sinix|sysv|') ;; sinix*) os=sysv4 @@ -1722,7 +1722,7 @@ case $os in | skyos* | haiku* | rdos* | toppers* | drops* | es* \ | onefs* | tirtos* | phoenix* | fuchsia* | redox* | bme* \ | midnightbsd* | amdhsa* | unleashed* | emscripten* | wasi* \ - | nsk* | powerunix* | genode* | zvmoe* ) + | nsk* | powerunix* | genode* | zvmoe* | qnx* | emx*) ;; # This one is extra strict with allowed versions sco3.2v2 | sco3.2v[4-9]* | sco5v6*) @@ -1741,6 +1741,8 @@ esac case $kernel-$os in linux-gnu* | linux-dietlibc* | linux-android* | linux-newlib* | linux-musl* | linux-uclibc* ) ;; + uclinux-uclibc* ) + ;; -dietlibc* | -newlib* | -musl* | -uclibc* ) # These are just libc implementations, not actual OSes, and thus # require a kernel. @@ -1751,6 +1753,8 @@ case $kernel-$os in ;; nto-qnx*) ;; + os2-emx) + ;; *-eabi* | *-gnueabi*) ;; -*) diff --git a/build-aux/install-sh b/build-aux/install-sh index b34a8fc5ab9..ec298b53740 100755 --- a/build-aux/install-sh +++ b/build-aux/install-sh @@ -1,7 +1,7 @@ #!/bin/sh # install - install a program, script, or datafile -scriptversion=2020-07-26.22; # UTC +scriptversion=2020-11-14.01; # UTC # This originates from X11R5 (mit/util/scripts/install.sh), which was # later released in X11R6 (xc/config/util/install.sh) with the @@ -73,6 +73,7 @@ mode=0755 # This is like GNU 'install' as of coreutils 8.32 (2020). mkdir_umask=22 +backupsuffix= chgrpcmd= chmodcmd=$chmodprog chowncmd= @@ -103,18 +104,28 @@ Options: --version display version info and exit. -c (ignored) - -C install only if different (preserve the last data modification time) + -C install only if different (preserve data modification time) -d create directories instead of installing files. -g GROUP $chgrpprog installed files to GROUP. -m MODE $chmodprog installed files to MODE. -o USER $chownprog installed files to USER. + -p pass -p to $cpprog. -s $stripprog installed files. + -S SUFFIX attempt to back up existing files, with suffix SUFFIX. -t DIRECTORY install into DIRECTORY. -T report an error if DSTFILE is a directory. Environment variables override the default commands: CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG RMPROG STRIPPROG + +By default, rm is invoked with -f; when overridden with RMPROG, +it's up to you to specify -f if you want it. + +If -S is not specified, no backups are attempted. + +Email bug reports to bug-automake@gnu.org. +Automake home page: https://www.gnu.org/software/automake/ " while test $# -ne 0; do @@ -141,8 +152,13 @@ while test $# -ne 0; do -o) chowncmd="$chownprog $2" shift;; + -p) cpprog="$cpprog -p";; + -s) stripcmd=$stripprog;; + -S) backupsuffix="$2" + shift;; + -t) is_target_a_directory=always dst_arg=$2 @@ -259,6 +275,10 @@ do dstdir=$dst test -d "$dstdir" dstdir_status=$? + # Don't chown directories that already exist. + if test $dstdir_status = 0; then + chowncmd="" + fi else # Waiting for this to be detected by the "$cpprog $src $dsttmp" command @@ -473,6 +493,13 @@ do then rm -f "$dsttmp" else + # If $backupsuffix is set, and the file being installed + # already exists, attempt a backup. Don't worry if it fails, + # e.g., if mv doesn't support -f. + if test -n "$backupsuffix" && test -f "$dst"; then + $doit $mvcmd -f "$dst" "$dst$backupsuffix" 2>/dev/null + fi + # Rename the file to the real destination. $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null || @@ -487,9 +514,9 @@ do # file should still install successfully. { test ! -f "$dst" || - $doit $rmcmd -f "$dst" 2>/dev/null || + $doit $rmcmd "$dst" 2>/dev/null || { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null && - { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; } + { $doit $rmcmd "$rmtmp" 2>/dev/null; :; } } || { echo "$0: cannot unlink or rename $dst" >&2 (exit 1); exit 1 diff --git a/doc/misc/texinfo.tex b/doc/misc/texinfo.tex index 0a26e9f702c..3c7051d1c74 100644 --- a/doc/misc/texinfo.tex +++ b/doc/misc/texinfo.tex @@ -3,7 +3,7 @@ % Load plain if necessary, i.e., if running under initex. \expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi % -\def\texinfoversion{2020-06-25.17} +\def\texinfoversion{2020-10-24.12} % % Copyright 1985, 1986, 1988, 1990-2020 Free Software Foundation, Inc. % @@ -1088,7 +1088,7 @@ where each line of input produces a line of output.} } % The -2 in the arguments here gives all the input to TeX catcode 12 % (other) or 10 (space), preventing undefined control sequence errors. See - % https://lists.gnu.org/r/bug-texinfo/2019-08/msg00031.html + % https://lists.gnu.org/archive/html/bug-texinfo/2019-08/msg00031.html % \endgroup \def\pdfescapestring#1{\directlua{PDFescstr('\luaescapestring{#1}')}} @@ -3038,10 +3038,18 @@ end % arg (if given), and not the url (which is then just the link target). \newif\ifurefurlonlylink +% The default \pretolerance setting stops the penalty inserted in +% \urefallowbreak being a discouragement to line breaking. Set it to +% a negative value for this paragraph only. Hopefully this does not +% conflict with redefinitions of \par done elsewhere. +\def\nopretolerance{% +\pretolerance=-1 +\def\par{\endgraf\pretolerance=100 \let\par\endgraf}% +} + % The main macro is \urefbreak, which allows breaking at expected -% places within the url. (There used to be another version, which -% didn't support automatic breaking.) -\def\urefbreak{\begingroup \urefcatcodes \dourefbreak} +% places within the url. +\def\urefbreak{\nopretolerance \begingroup \urefcatcodes \dourefbreak} \let\uref=\urefbreak % \def\dourefbreak#1{\urefbreakfinish #1,,,\finish} @@ -3152,14 +3160,14 @@ end % Allow a ragged right output to aid breaking long URL's. There can % be a break at the \allowbreak with no extra glue (if the existing stretch in -% the line is sufficient), a break at the \penalty100 with extra glue added +% the line is sufficient), a break at the \penalty with extra glue added % at the end of the line, or no break at all here. % Changing the value of the penalty and/or the amount of stretch affects how % preferable one choice is over the other. \def\urefallowbreak{% - \allowbreak + \penalty0\relax \hskip 0pt plus 2 em\relax - \penalty300 + \penalty1000\relax \hskip 0pt plus -2 em\relax } @@ -3356,6 +3364,25 @@ end \def\sup{\ifmmode \expandafter\ptexsp \else \expandafter\finishsup\fi} \def\finishsup#1{$\ptexsp{\hbox{\switchtolllsize #1}}$}% +% provide this command from LaTeX as it is very common +\def\frac#1#2{{{#1}\over{#2}}} + +% @displaymath. +% \globaldefs is needed to recognize the end lines in \tex and +% \end tex. Set \thisenv as @end displaymath is seen before @end tex. +{\obeylines +\globaldefs=1 +\envdef\displaymath{% +\tex +\def\thisenv{\displaymath}% +$$% +} + +\def\Edisplaymath{$$ +\def\thisenv{\tex}% +\end tex +}} + % @inlinefmt{FMTNAME,PROCESSED-TEXT} and @inlineraw{FMTNAME,RAW-TEXT}. % Ignore unless FMTNAME == tex; then it is like @iftex and @tex, % except specified as a normal braced arg, so no newlines to worry about. @@ -7639,7 +7666,7 @@ might help (with 'rm \jobname.?? \jobname.??s')% \endgroup % \envdef\verbatim{% - \setupverbatim\doverbatim + \setnormaldispenv\setupverbatim\doverbatim } \let\Everbatim = \afterenvbreak @@ -11459,6 +11486,18 @@ directory should work if nowhere else does.} \globaldefs = 0 }} +\def\bsixpaper{{\globaldefs = 1 + \afourpaper + \internalpagesizes{140mm}{100mm}% + {-6.35mm}{-12.7mm}% + {\bindingoffset}{14pt}% + {176mm}{125mm}% + \let\SETdispenvsize=\smallword + \lispnarrowing = 0.2in + \globaldefs = 0 +}} + + % @pagesizes TEXTHEIGHT[,TEXTWIDTH] % Perhaps we should allow setting the margins, \topskip, \parskip, % and/or leading, also. Or perhaps we should compute them somehow. @@ -11472,12 +11511,12 @@ directory should work if nowhere else does.} \setleading{\textleading}% % \dimen0 = #1\relax - \advance\dimen0 by \voffset - \advance\dimen0 by 1in % reference point for DVI is 1 inch from top of page + \advance\dimen0 by 2.5in % default 1in margin above heading line + % and 1.5in to include heading, footing and + % bottom margin % \dimen2 = \hsize - \advance\dimen2 by \normaloffset - \advance\dimen2 by 1in % reference point is 1 inch from left edge of page + \advance\dimen2 by 2in % default to 1 inch margin on each side % \internalpagesizes{#1}{\hsize}% {\voffset}{\normaloffset}% diff --git a/lib/attribute.h b/lib/attribute.h index 2836b99dad0..5afcb8e81f2 100644 --- a/lib/attribute.h +++ b/lib/attribute.h @@ -80,7 +80,7 @@ /* Attributes for variadic functions. */ /* The variadic function expects a trailing NULL argument. - ATTRIBUTE_SENTINEL () - The last argument is NULL. + ATTRIBUTE_SENTINEL () - The last argument is NULL (requires C99). ATTRIBUTE_SENTINEL ((N)) - The (N+1)st argument from the end is NULL. */ /* Applies to: functions. */ #define ATTRIBUTE_SENTINEL(pos) _GL_ATTRIBUTE_SENTINEL (pos) @@ -170,18 +170,21 @@ /* Applies to: function. */ #define ATTRIBUTE_ALWAYS_INLINE _GL_ATTRIBUTE_ALWAYS_INLINE -/* The function does not affect observable state, and always returns a value. - Compilers can omit duplicate calls with the same arguments if - observable state is not changed between calls. (This attribute is - looser than ATTRIBUTE_CONST.) */ +/* It is OK for a compiler to omit duplicate calls with the same arguments. + This attribute is safe for a function that neither depends on + nor affects observable state, and always returns exactly once - + e.g., does not loop forever, and does not call longjmp. + (This attribute is stricter than ATTRIBUTE_PURE.) */ /* Applies to: functions. */ -#define ATTRIBUTE_PURE _GL_ATTRIBUTE_PURE +#define ATTRIBUTE_CONST _GL_ATTRIBUTE_CONST -/* The function neither depends on nor affects observable state, - and always returns a value. Compilers can omit duplicate calls with - the same arguments. (This attribute is stricter than ATTRIBUTE_PURE.) */ +/* It is OK for a compiler to omit duplicate calls with the same + arguments if observable state is not changed between calls. + This attribute is safe for a function that does not affect + observable state, and always returns exactly once. + (This attribute is looser than ATTRIBUTE_CONST.) */ /* Applies to: functions. */ -#define ATTRIBUTE_CONST _GL_ATTRIBUTE_CONST +#define ATTRIBUTE_PURE _GL_ATTRIBUTE_PURE /* The function is rarely executed. */ /* Applies to: functions. */ diff --git a/lib/c++defs.h b/lib/c++defs.h index 6a9bf295eb5..01ef8140cad 100644 --- a/lib/c++defs.h +++ b/lib/c++defs.h @@ -181,6 +181,14 @@ _GL_EXTERN_C int _gl_cxxalias_dummy #endif +/* _GL_CXXALIAS_MDA_CAST (func, rettype, parameters); + is like _GL_CXXALIAS_MDA (func, rettype, parameters); + except that the C function func may have a slightly different declaration. + A cast is used to silence the "invalid conversion" error that would + otherwise occur. */ +#define _GL_CXXALIAS_MDA_CAST(func,rettype,parameters) \ + _GL_CXXALIAS_RPL_CAST_1 (func, _##func, rettype, parameters) + /* _GL_CXXALIAS_SYS (func, rettype, parameters); declares a C++ alias called GNULIB_NAMESPACE::func that redirects to the system provided function func, if GNULIB_NAMESPACE diff --git a/lib/canonicalize-lgpl.c b/lib/canonicalize-lgpl.c index 0b89d2a1842..584fce1cfa4 100644 --- a/lib/canonicalize-lgpl.c +++ b/lib/canonicalize-lgpl.c @@ -2,18 +2,19 @@ Copyright (C) 1996-2020 Free Software Foundation, Inc. This file is part of the GNU C Library. - This program is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public + License as published by the Free Software Foundation; either + version 3 of the License, or (at your option) any later version. - This program is distributed in the hope that it will be useful, + The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. - You should have received a copy of the GNU General Public License - along with this program. If not, see . */ + You should have received a copy of the GNU General Public + License along with the GNU C Library; if not, see + . */ #ifndef _LIBC /* Don't use __attribute__ __nonnull__ in this compilation unit. Otherwise gcc @@ -21,36 +22,36 @@ # define _GL_ARG_NONNULL(params) # define _GL_USE_STDLIB_ALLOC 1 -# include +# include #endif -#if !HAVE_CANONICALIZE_FILE_NAME || !FUNC_REALPATH_WORKS || defined _LIBC - /* Specification. */ #include -#include -#include -#include -#include -#if HAVE_SYS_PARAM_H || defined _LIBC -# include -#endif -#include #include +#include +#include #include +#include +#include +#include + +#include #ifdef _LIBC +# include # include +typedef ptrdiff_t idx_t; +# define IDX_MAX PTRDIFF_MAX +# define FILE_SYSTEM_PREFIX_LEN(name) 0 +# define IS_ABSOLUTE_FILE_NAME(name) ISSLASH(*(name)) +# define ISSLASH(c) ((c) == '/') +# define freea(p) ((void) (p)) #else -# define SHLIB_COMPAT(lib, introduced, obsoleted) 0 -# define versioned_symbol(lib, local, symbol, version) extern int dummy -# define compat_symbol(lib, local, symbol, version) -# define weak_alias(local, symbol) # define __canonicalize_file_name canonicalize_file_name # define __realpath realpath +# include "idx.h" # include "pathmax.h" -# include "malloca.h" # include "filename.h" # if defined _WIN32 && !defined __CYGWIN__ # define __getcwd _getcwd @@ -72,8 +73,10 @@ # else # define __getcwd(buf, max) getwd (buf) # endif +# define __mempcpy mempcpy +# define __pathconf pathconf +# define __rawmemchr rawmemchr # define __readlink readlink -# define __set_errno(e) errno = (e) # ifndef MAXSYMLINKS # ifdef SYMLOOP_MAX # define MAXSYMLINKS SYMLOOP_MAX @@ -81,48 +84,51 @@ # define MAXSYMLINKS 20 # endif # endif +# define __eloop_threshold() MAXSYMLINKS #endif #ifndef DOUBLE_SLASH_IS_DISTINCT_ROOT # define DOUBLE_SLASH_IS_DISTINCT_ROOT 0 #endif -/* Define this independently so that stdint.h is not a prerequisite. */ -#ifndef SIZE_MAX -# define SIZE_MAX ((size_t) -1) -#endif - #if !FUNC_REALPATH_WORKS || defined _LIBC -static void -alloc_failed (void) +static idx_t +get_path_max (void) { -#if defined _WIN32 && ! defined __CYGWIN__ - /* Avoid errno problem without using the malloc or realloc modules; see: - https://lists.gnu.org/r/bug-gnulib/2016-08/msg00025.html */ - errno = ENOMEM; -#endif +# ifdef PATH_MAX + long int path_max = PATH_MAX; +# else + /* The caller invoked realpath with a null RESOLVED, even though + PATH_MAX is not defined as a constant. The glibc manual says + programs should not do this, and POSIX says the behavior is undefined. + Historically, glibc here used the result of pathconf, or 1024 if that + failed; stay consistent with this (dubious) historical practice. */ + int err = errno; + long int path_max = __pathconf ("/", _PC_PATH_MAX); + __set_errno (err); +# endif + return path_max < 0 ? 1024 : path_max <= IDX_MAX ? path_max : IDX_MAX; } /* Return the canonical absolute name of file NAME. A canonical name - does not contain any ".", ".." components nor any repeated path - separators ('/') or symlinks. All path components must exist. If + does not contain any ".", ".." components nor any repeated file name + separators ('/') or symlinks. All file name components must exist. If RESOLVED is null, the result is malloc'd; otherwise, if the canonical name is PATH_MAX chars or more, returns null with 'errno' set to ENAMETOOLONG; if the name fits in fewer than PATH_MAX chars, returns the name in RESOLVED. If the name cannot be resolved and - RESOLVED is non-NULL, it contains the path of the first component - that cannot be resolved. If the path can be resolved, RESOLVED + RESOLVED is non-NULL, it contains the name of the first component + that cannot be resolved. If the name can be resolved, RESOLVED holds the same value as the value returned. */ char * __realpath (const char *name, char *resolved) { - char *rpath, *dest, *extra_buf = NULL; - const char *start, *end, *rpath_limit; - long int path_max; + char *dest; + char const *start; + char const *end; int num_links = 0; - size_t prefix_len; if (name == NULL) { @@ -142,205 +148,151 @@ __realpath (const char *name, char *resolved) return NULL; } -#ifdef PATH_MAX - path_max = PATH_MAX; -#else - path_max = pathconf (name, _PC_PATH_MAX); - if (path_max <= 0) - path_max = 8192; -#endif - - if (resolved == NULL) - { - rpath = malloc (path_max); - if (rpath == NULL) - { - alloc_failed (); - return NULL; - } - } - else - rpath = resolved; - rpath_limit = rpath + path_max; + struct scratch_buffer extra_buffer, link_buffer; + struct scratch_buffer rname_buffer; + struct scratch_buffer *rname_buf = &rname_buffer; + scratch_buffer_init (&extra_buffer); + scratch_buffer_init (&link_buffer); + scratch_buffer_init (rname_buf); + char *rname_on_stack = rname_buf->data; + char *rname = rname_on_stack; + bool end_in_extra_buffer = false; + bool failed = true; /* This is always zero for Posix hosts, but can be 2 for MS-Windows and MS-DOS X:/foo/bar file names. */ - prefix_len = FILE_SYSTEM_PREFIX_LEN (name); + idx_t prefix_len = FILE_SYSTEM_PREFIX_LEN (name); if (!IS_ABSOLUTE_FILE_NAME (name)) { - if (!__getcwd (rpath, path_max)) + while (!__getcwd (rname, rname_buf->length)) { - rpath[0] = '\0'; - goto error; + if (errno != ERANGE) + { + dest = rname; + goto error; + } + if (!scratch_buffer_grow (rname_buf)) + goto error_nomem; + rname = rname_buf->data; } - dest = strchr (rpath, '\0'); + dest = __rawmemchr (rname, '\0'); start = name; - prefix_len = FILE_SYSTEM_PREFIX_LEN (rpath); + prefix_len = FILE_SYSTEM_PREFIX_LEN (rname); } else { - dest = rpath; - if (prefix_len) - { - memcpy (rpath, name, prefix_len); - dest += prefix_len; - } + dest = __mempcpy (rname, name, prefix_len); *dest++ = '/'; if (DOUBLE_SLASH_IS_DISTINCT_ROOT) { - if (ISSLASH (name[1]) && !ISSLASH (name[2]) && !prefix_len) + if (prefix_len == 0 /* implies ISSLASH (name[0]) */ + && ISSLASH (name[1]) && !ISSLASH (name[2])) *dest++ = '/'; *dest = '\0'; } start = name + prefix_len; } - for (end = start; *start; start = end) + for ( ; *start; start = end) { -#ifdef _LIBC - struct stat64 st; -#else - struct stat st; -#endif - - /* Skip sequence of multiple path-separators. */ + /* Skip sequence of multiple file name separators. */ while (ISSLASH (*start)) ++start; - /* Find end of path component. */ + /* Find end of component. */ for (end = start; *end && !ISSLASH (*end); ++end) /* Nothing. */; - if (end - start == 0) - break; - else if (end - start == 1 && start[0] == '.') + /* Length of this file name component; it can be zero if a file + name ends in '/'. */ + idx_t startlen = end - start; + + if (startlen == 1 && start[0] == '.') /* nothing */; - else if (end - start == 2 && start[0] == '.' && start[1] == '.') + else if (startlen == 2 && start[0] == '.' && start[1] == '.') { /* Back up to previous component, ignore if at root already. */ - if (dest > rpath + prefix_len + 1) - for (--dest; dest > rpath && !ISSLASH (dest[-1]); --dest) + if (dest > rname + prefix_len + 1) + for (--dest; dest > rname && !ISSLASH (dest[-1]); --dest) continue; if (DOUBLE_SLASH_IS_DISTINCT_ROOT - && dest == rpath + 1 && !prefix_len + && dest == rname + 1 && !prefix_len && ISSLASH (*dest) && !ISSLASH (dest[1])) dest++; } else { - size_t new_size; - if (!ISSLASH (dest[-1])) *dest++ = '/'; - if (dest + (end - start) >= rpath_limit) + while (rname + rname_buf->length - dest <= startlen) { - ptrdiff_t dest_offset = dest - rpath; - char *new_rpath; - - if (resolved) - { - __set_errno (ENAMETOOLONG); - if (dest > rpath + prefix_len + 1) - dest--; - *dest = '\0'; - goto error; - } - new_size = rpath_limit - rpath; - if (end - start + 1 > path_max) - new_size += end - start + 1; - else - new_size += path_max; - new_rpath = (char *) realloc (rpath, new_size); - if (new_rpath == NULL) - { - alloc_failed (); - goto error; - } - rpath = new_rpath; - rpath_limit = rpath + new_size; - - dest = rpath + dest_offset; + idx_t dest_offset = dest - rname; + if (!scratch_buffer_grow_preserve (rname_buf)) + goto error_nomem; + rname = rname_buf->data; + dest = rname + dest_offset; } -#ifdef _LIBC - dest = __mempcpy (dest, start, end - start); -#else - memcpy (dest, start, end - start); - dest += end - start; -#endif + dest = __mempcpy (dest, start, startlen); *dest = '\0'; - /* FIXME: if lstat fails with errno == EOVERFLOW, - the entry exists. */ -#ifdef _LIBC - if (__lxstat64 (_STAT_VER, rpath, &st) < 0) -#else - if (lstat (rpath, &st) < 0) -#endif - goto error; - - if (S_ISLNK (st.st_mode)) + /* If STARTLEN == 0, RNAME ends in '/'; use stat rather than + readlink, because readlink might fail with EINVAL without + checking whether RNAME sans '/' is valid. */ + struct stat st; + char *buf = NULL; + ssize_t n; + if (startlen != 0) { - char *buf; - size_t len; - ssize_t n; - - if (++num_links > MAXSYMLINKS) - { - __set_errno (ELOOP); - goto error; - } - - buf = malloca (path_max); - if (!buf) + while (true) { - __set_errno (ENOMEM); - goto error; + buf = link_buffer.data; + idx_t bufsize = link_buffer.length; + n = __readlink (rname, buf, bufsize - 1); + if (n < bufsize - 1) + break; + if (!scratch_buffer_grow (&link_buffer)) + goto error_nomem; } - - n = __readlink (rpath, buf, path_max - 1); if (n < 0) + buf = NULL; + } + if (buf) + { + if (++num_links > __eloop_threshold ()) { - int saved_errno = errno; - freea (buf); - __set_errno (saved_errno); + __set_errno (ELOOP); goto error; } - buf[n] = '\0'; - if (!extra_buf) - { - extra_buf = malloca (path_max); - if (!extra_buf) - { - freea (buf); - __set_errno (ENOMEM); - goto error; - } - } + buf[n] = '\0'; - len = strlen (end); - /* Check that n + len + 1 doesn't overflow and is <= path_max. */ - if (n >= SIZE_MAX - len || n + len >= path_max) + char *extra_buf = extra_buffer.data; + idx_t end_idx; + if (end_in_extra_buffer) + end_idx = end - extra_buf; + idx_t len = strlen (end); + while (extra_buffer.length <= len + n) { - freea (buf); - __set_errno (ENAMETOOLONG); - goto error; + if (!scratch_buffer_grow_preserve (&extra_buffer)) + goto error_nomem; + extra_buf = extra_buffer.data; } + if (end_in_extra_buffer) + end = extra_buf + end_idx; /* Careful here, end may be a pointer into extra_buf... */ memmove (&extra_buf[n], end, len + 1); name = end = memcpy (extra_buf, buf, n); + end_in_extra_buffer = true; if (IS_ABSOLUTE_FILE_NAME (buf)) { - size_t pfxlen = FILE_SYSTEM_PREFIX_LEN (buf); + idx_t pfxlen = FILE_SYSTEM_PREFIX_LEN (buf); - if (pfxlen) - memcpy (rpath, buf, pfxlen); - dest = rpath + pfxlen; + dest = __mempcpy (rname, buf, pfxlen); *dest++ = '/'; /* It's an absolute symlink */ if (DOUBLE_SLASH_IS_DISTINCT_ROOT) { @@ -355,44 +307,55 @@ __realpath (const char *name, char *resolved) { /* Back up to previous component, ignore if at root already: */ - if (dest > rpath + prefix_len + 1) - for (--dest; dest > rpath && !ISSLASH (dest[-1]); --dest) + if (dest > rname + prefix_len + 1) + for (--dest; dest > rname && !ISSLASH (dest[-1]); --dest) continue; - if (DOUBLE_SLASH_IS_DISTINCT_ROOT && dest == rpath + 1 + if (DOUBLE_SLASH_IS_DISTINCT_ROOT && dest == rname + 1 && ISSLASH (*dest) && !ISSLASH (dest[1]) && !prefix_len) dest++; } } - else if (!S_ISDIR (st.st_mode) && *end != '\0') - { - __set_errno (ENOTDIR); - goto error; - } + else if (! (startlen == 0 + ? stat (rname, &st) == 0 || errno == EOVERFLOW + : errno == EINVAL)) + goto error; } } - if (dest > rpath + prefix_len + 1 && ISSLASH (dest[-1])) + if (dest > rname + prefix_len + 1 && ISSLASH (dest[-1])) --dest; - if (DOUBLE_SLASH_IS_DISTINCT_ROOT && dest == rpath + 1 && !prefix_len + if (DOUBLE_SLASH_IS_DISTINCT_ROOT && dest == rname + 1 && !prefix_len && ISSLASH (*dest) && !ISSLASH (dest[1])) dest++; - *dest = '\0'; - - if (extra_buf) - freea (extra_buf); - - return rpath; + failed = false; error: - { - int saved_errno = errno; - if (extra_buf) - freea (extra_buf); - if (resolved == NULL) - free (rpath); - __set_errno (saved_errno); - } - return NULL; + *dest++ = '\0'; + if (resolved != NULL && dest - rname <= get_path_max ()) + rname = strcpy (resolved, rname); + +error_nomem: + scratch_buffer_free (&extra_buffer); + scratch_buffer_free (&link_buffer); + if (failed || rname == resolved) + scratch_buffer_free (rname_buf); + + if (failed) + return NULL; + + if (rname == resolved) + return rname; + idx_t rname_size = dest - rname; + if (rname == rname_on_stack) + { + rname = malloc (rname_size); + if (rname == NULL) + return NULL; + return memcpy (rname, rname_on_stack, rname_size); + } + char *result = realloc (rname, rname_size); + return result != NULL ? result : rname; } +libc_hidden_def (__realpath) versioned_symbol (libc, __realpath, realpath, GLIBC_2_3); #endif /* !FUNC_REALPATH_WORKS || defined _LIBC */ @@ -420,11 +383,3 @@ __canonicalize_file_name (const char *name) return __realpath (name, NULL); } weak_alias (__canonicalize_file_name, canonicalize_file_name) - -#else - -/* This declaration is solely to ensure that after preprocessing - this file is never empty. */ -typedef int dummy; - -#endif diff --git a/lib/careadlinkat.c b/lib/careadlinkat.c index e43aa42d5c4..26fe84df55e 100644 --- a/lib/careadlinkat.c +++ b/lib/careadlinkat.c @@ -51,8 +51,13 @@ enum { STACK_BUF_SIZE = 1024 }; to pacify GCC is known; even an explicit #pragma does not pacify GCC. When the GCC bug is fixed this workaround should be limited to the broken GCC versions. */ -#if (defined GCC_LINT || defined lint) && _GL_GNUC_PREREQ (10, 1) +#if _GL_GNUC_PREREQ (10, 1) +# if defined GCC_LINT || defined lint __attribute__ ((__noinline__)) +# elif __OPTIMIZE__ && !__NO_INLINE__ +# warning "GCC might issue a bogus -Wreturn-local-addr warning here." +# warning "See ." +# endif #endif static char * readlink_stk (int fd, char const *filename, @@ -85,18 +90,13 @@ readlink_stk (int fd, char const *filename, size_t link_size; if (link_length < 0) { - /* On AIX 5L v5.3 and HP-UX 11i v2 04/09, readlink returns -1 - with errno == ERANGE if the buffer is too small. */ - int readlinkat_errno = errno; - if (readlinkat_errno != ERANGE) + if (buf != buffer) { - if (buf != buffer) - { - alloc->free (buf); - errno = readlinkat_errno; - } - return NULL; + int readlinkat_errno = errno; + alloc->free (buf); + errno = readlinkat_errno; } + return NULL; } link_size = link_length; diff --git a/lib/cdefs.h b/lib/cdefs.h index ff7c628a264..1a2805d7259 100644 --- a/lib/cdefs.h +++ b/lib/cdefs.h @@ -75,11 +75,11 @@ /* GCC can always grok prototypes. For C++ programs we add throw() to help it optimize the function calls. But this works only with - gcc 2.8.x and egcs. For gcc 3.2 and up we even mark C functions + gcc 2.8.x and egcs. For gcc 3.4 and up we even mark C functions as non-throwing using a function attribute since programs can use the -fexceptions options for C code as well. */ # if !defined __cplusplus \ - && (__GNUC_PREREQ (3, 3) || __glibc_clang_has_attribute (__nothrow__)) + && (__GNUC_PREREQ (3, 4) || __glibc_clang_has_attribute (__nothrow__)) # define __THROW __attribute__ ((__nothrow__ __LEAF)) # define __THROWNL __attribute__ ((__nothrow__)) # define __NTH(fct) __attribute__ ((__nothrow__ __LEAF)) fct diff --git a/lib/fcntl.c b/lib/fcntl.c index 8cd1531527d..59bb3ca91ea 100644 --- a/lib/fcntl.c +++ b/lib/fcntl.c @@ -491,7 +491,9 @@ rpl_fcntl_DUPFD_CLOEXEC (int fd, int target) #if !HAVE_FCNTL result = dupfd (fd, target, O_CLOEXEC); #else /* HAVE_FCNTL */ -# if defined __HAIKU__ +# if defined __NetBSD__ || defined __HAIKU__ + /* On NetBSD 9.0, the system fcntl (fd, F_DUPFD_CLOEXEC, target) + has only the same effect as fcntl (fd, F_DUPFD, target). */ /* On Haiku, the system fcntl (fd, F_DUPFD_CLOEXEC, target) sets the FD_CLOEXEC flag on fd, not on target. Therefore avoid the system fcntl in this case. */ diff --git a/lib/fcntl.in.h b/lib/fcntl.in.h index 6f16bc66921..11c9aae9bcc 100644 --- a/lib/fcntl.in.h +++ b/lib/fcntl.in.h @@ -112,9 +112,21 @@ _GL_CXXALIASWARN (creat); /* Assume creat is always declared. */ _GL_WARN_ON_USE (creat, "creat is not always POSIX compliant - " "use gnulib module creat for portability"); -#elif defined _WIN32 && !defined __CYGWIN__ -# undef creat -# define creat _creat +#else +/* On native Windows, map 'creat' to '_creat', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::creat always. */ +# if defined _WIN32 && !defined __CYGWIN__ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef creat +# define creat _creat +# endif +/* Need to cast, because in mingw the last argument is 'int mode'. */ +_GL_CXXALIAS_MDA_CAST (creat, int, (const char *filename, mode_t mode)); +# else +_GL_CXXALIAS_SYS (creat, int, (const char *filename, mode_t mode)); +# endif +_GL_CXXALIASWARN (creat); #endif #if @GNULIB_FCNTL@ @@ -174,9 +186,22 @@ _GL_CXXALIASWARN (open); /* Assume open is always declared. */ _GL_WARN_ON_USE (open, "open is not always POSIX compliant - " "use gnulib module open for portability"); -#elif defined _WIN32 && !defined __CYGWIN__ -# undef open -# define open _open +#else +/* On native Windows, map 'open' to '_open', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::open always. */ +# if defined _WIN32 && !defined __CYGWIN__ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef open +# define open _open +# endif +_GL_CXXALIAS_MDA (open, int, (const char *filename, int flags, ...)); +# else +_GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...)); +# endif +# if !defined __hpux +_GL_CXXALIASWARN (open); +# endif #endif #if @GNULIB_OPENAT@ diff --git a/lib/filemode.c b/lib/filemode.c index e1b069093f8..15e3551368b 100644 --- a/lib/filemode.c +++ b/lib/filemode.c @@ -20,17 +20,6 @@ #include "filemode.h" -/* The following is for Cray DMF (Data Migration Facility), which is a - HSM file system. A migrated file has a 'st_dm_mode' that is - different from the normal 'st_mode', so any tests for migrated - files should use the former. */ -#if HAVE_ST_DM_MODE -# define IS_MIGRATED_FILE(statp) \ - (S_ISOFD (statp->st_dm_mode) || S_ISOFL (statp->st_dm_mode)) -#else -# define IS_MIGRATED_FILE(statp) 0 -#endif - #if ! HAVE_DECL_STRMODE /* Return a character indicating the type of file described by @@ -126,7 +115,6 @@ strmode (mode_t mode, char *str) for files whose type cannot be determined solely from st_mode: 'F' semaphore - 'M' migrated file (Cray DMF) 'Q' message queue 'S' shared memory object 'T' typed memory object @@ -169,8 +157,6 @@ filemodestring (struct stat const *statp, char *str) if (S_TYPEISSEM (statp)) str[0] = 'F'; - else if (IS_MIGRATED_FILE (statp)) - str[0] = 'M'; else if (S_TYPEISMQ (statp)) str[0] = 'Q'; else if (S_TYPEISSHM (statp)) diff --git a/lib/fpending.c b/lib/fpending.c index 802ebcba654..836a3a988bf 100644 --- a/lib/fpending.c +++ b/lib/fpending.c @@ -25,7 +25,8 @@ #include "stdio-impl.h" /* This file is not used on systems that already have the __fpending function, - namely glibc >= 2.2, Solaris >= 7, Android API >= 23. */ + namely glibc >= 2.2, Solaris >= 7, UnixWare >= 7.1.4.MP4, Cygwin >= 1.7.34, + Android API >= 23. */ /* Return the number of pending (aka buffered, unflushed) bytes on the stream, FP, that is open for writing. */ @@ -39,13 +40,13 @@ __fpending (FILE *fp) /* GNU libc, BeOS, Haiku, Linux libc5 */ return fp->_IO_write_ptr - fp->_IO_write_base; #elif defined __sferror || defined __DragonFly__ || defined __ANDROID__ - /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin, Minix 3, Android */ + /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin < 1.7.34, Minix 3, Android */ return fp->_p - fp->_bf._base; #elif defined __EMX__ /* emx+gcc */ return fp->_ptr - fp->_buffer; #elif defined __minix /* Minix */ return fp_->_ptr - fp_->_buf; -#elif defined _IOERR /* AIX, HP-UX, IRIX, OSF/1, Solaris, OpenServer, mingw, MSVC, NonStop Kernel, OpenVMS */ +#elif defined _IOERR /* AIX, HP-UX, IRIX, OSF/1, Solaris, OpenServer, UnixWare, mingw, MSVC, NonStop Kernel, OpenVMS */ return (fp_->_ptr ? fp_->_ptr - fp_->_base : 0); #elif defined __UCLIBC__ /* uClibc */ return (fp->__modeflags & __FLAG_WRITING ? fp->__bufpos - fp->__bufstart : 0); diff --git a/lib/free.c b/lib/free.c new file mode 100644 index 00000000000..2f689a7ea32 --- /dev/null +++ b/lib/free.c @@ -0,0 +1,33 @@ +/* Make free() preserve errno. + + Copyright (C) 2003, 2006, 2009-2020 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +/* written by Paul Eggert */ + +#include + +#include + +#include + +void +rpl_free (void *p) +#undef free +{ + int err = errno; + free (p); + errno = err; +} diff --git a/lib/gnulib.mk.in b/lib/gnulib.mk.in index 9953198fb31..df533fa6740 100644 --- a/lib/gnulib.mk.in +++ b/lib/gnulib.mk.in @@ -257,6 +257,7 @@ GL_GENERATE_STDINT_H = @GL_GENERATE_STDINT_H@ GMALLOC_OBJ = @GMALLOC_OBJ@ GMP_H = @GMP_H@ GNULIB_ACCESS = @GNULIB_ACCESS@ +GNULIB_ALIGNED_ALLOC = @GNULIB_ALIGNED_ALLOC@ GNULIB_ALPHASORT = @GNULIB_ALPHASORT@ GNULIB_ATOLL = @GNULIB_ATOLL@ GNULIB_CALLOC_POSIX = @GNULIB_CALLOC_POSIX@ @@ -297,6 +298,7 @@ GNULIB_FPURGE = @GNULIB_FPURGE@ GNULIB_FPUTC = @GNULIB_FPUTC@ GNULIB_FPUTS = @GNULIB_FPUTS@ GNULIB_FREAD = @GNULIB_FREAD@ +GNULIB_FREE_POSIX = @GNULIB_FREE_POSIX@ GNULIB_FREOPEN = @GNULIB_FREOPEN@ GNULIB_FSCANF = @GNULIB_FSCANF@ GNULIB_FSEEK = @GNULIB_FSEEK@ @@ -388,6 +390,7 @@ GNULIB_PERROR = @GNULIB_PERROR@ GNULIB_PIPE = @GNULIB_PIPE@ GNULIB_PIPE2 = @GNULIB_PIPE2@ GNULIB_POPEN = @GNULIB_POPEN@ +GNULIB_POSIX_MEMALIGN = @GNULIB_POSIX_MEMALIGN@ GNULIB_POSIX_OPENPT = @GNULIB_POSIX_OPENPT@ GNULIB_PREAD = @GNULIB_PREAD@ GNULIB_PRINTF = @GNULIB_PRINTF@ @@ -506,6 +509,7 @@ GTK_OBJ = @GTK_OBJ@ GZIP_PROG = @GZIP_PROG@ HARFBUZZ_CFLAGS = @HARFBUZZ_CFLAGS@ HARFBUZZ_LIBS = @HARFBUZZ_LIBS@ +HAVE_ALIGNED_ALLOC = @HAVE_ALIGNED_ALLOC@ HAVE_ALLOCA_H = @HAVE_ALLOCA_H@ HAVE_ALPHASORT = @HAVE_ALPHASORT@ HAVE_ATOLL = @HAVE_ATOLL@ @@ -515,13 +519,18 @@ HAVE_CHOWN = @HAVE_CHOWN@ HAVE_CLOSEDIR = @HAVE_CLOSEDIR@ HAVE_COPY_FILE_RANGE = @HAVE_COPY_FILE_RANGE@ HAVE_DECL_DIRFD = @HAVE_DECL_DIRFD@ +HAVE_DECL_ECVT = @HAVE_DECL_ECVT@ HAVE_DECL_ENVIRON = @HAVE_DECL_ENVIRON@ +HAVE_DECL_EXECVPE = @HAVE_DECL_EXECVPE@ HAVE_DECL_FCHDIR = @HAVE_DECL_FCHDIR@ +HAVE_DECL_FCLOSEALL = @HAVE_DECL_FCLOSEALL@ +HAVE_DECL_FCVT = @HAVE_DECL_FCVT@ HAVE_DECL_FDATASYNC = @HAVE_DECL_FDATASYNC@ HAVE_DECL_FDOPENDIR = @HAVE_DECL_FDOPENDIR@ HAVE_DECL_FPURGE = @HAVE_DECL_FPURGE@ HAVE_DECL_FSEEKO = @HAVE_DECL_FSEEKO@ HAVE_DECL_FTELLO = @HAVE_DECL_FTELLO@ +HAVE_DECL_GCVT = @HAVE_DECL_GCVT@ HAVE_DECL_GETDELIM = @HAVE_DECL_GETDELIM@ HAVE_DECL_GETDOMAINNAME = @HAVE_DECL_GETDOMAINNAME@ HAVE_DECL_GETLINE = @HAVE_DECL_GETLINE@ @@ -621,6 +630,7 @@ HAVE_PDUMPER = @HAVE_PDUMPER@ HAVE_PIPE = @HAVE_PIPE@ HAVE_PIPE2 = @HAVE_PIPE2@ HAVE_POPEN = @HAVE_POPEN@ +HAVE_POSIX_MEMALIGN = @HAVE_POSIX_MEMALIGN@ HAVE_POSIX_OPENPT = @HAVE_POSIX_OPENPT@ HAVE_POSIX_SIGNALBLOCKING = @HAVE_POSIX_SIGNALBLOCKING@ HAVE_PREAD = @HAVE_PREAD@ @@ -863,6 +873,7 @@ PTRDIFF_T_SUFFIX = @PTRDIFF_T_SUFFIX@ RALLOC_OBJ = @RALLOC_OBJ@ RANLIB = @RANLIB@ REPLACE_ACCESS = @REPLACE_ACCESS@ +REPLACE_ALIGNED_ALLOC = @REPLACE_ALIGNED_ALLOC@ REPLACE_CALLOC = @REPLACE_CALLOC@ REPLACE_CANONICALIZE_FILE_NAME = @REPLACE_CANONICALIZE_FILE_NAME@ REPLACE_CHOWN = @REPLACE_CHOWN@ @@ -885,6 +896,7 @@ REPLACE_FFLUSH = @REPLACE_FFLUSH@ REPLACE_FOPEN = @REPLACE_FOPEN@ REPLACE_FPRINTF = @REPLACE_FPRINTF@ REPLACE_FPURGE = @REPLACE_FPURGE@ +REPLACE_FREE = @REPLACE_FREE@ REPLACE_FREOPEN = @REPLACE_FREOPEN@ REPLACE_FSEEK = @REPLACE_FSEEK@ REPLACE_FSEEKO = @REPLACE_FSEEKO@ @@ -932,6 +944,7 @@ REPLACE_OPENAT = @REPLACE_OPENAT@ REPLACE_OPENDIR = @REPLACE_OPENDIR@ REPLACE_PERROR = @REPLACE_PERROR@ REPLACE_POPEN = @REPLACE_POPEN@ +REPLACE_POSIX_MEMALIGN = @REPLACE_POSIX_MEMALIGN@ REPLACE_PREAD = @REPLACE_PREAD@ REPLACE_PRINTF = @REPLACE_PRINTF@ REPLACE_PSELECT = @REPLACE_PSELECT@ @@ -1101,12 +1114,15 @@ gl_GNULIB_ENABLED_a9786850e999ae65a836a6041e8e5ed1 = @gl_GNULIB_ENABLED_a9786850 gl_GNULIB_ENABLED_be453cec5eecf5731a274f2de7f2db36 = @gl_GNULIB_ENABLED_be453cec5eecf5731a274f2de7f2db36@ gl_GNULIB_ENABLED_cloexec = @gl_GNULIB_ENABLED_cloexec@ gl_GNULIB_ENABLED_dirfd = @gl_GNULIB_ENABLED_dirfd@ +gl_GNULIB_ENABLED_ef07dc4b3077c11ea9cef586db4e5955 = @gl_GNULIB_ENABLED_ef07dc4b3077c11ea9cef586db4e5955@ gl_GNULIB_ENABLED_euidaccess = @gl_GNULIB_ENABLED_euidaccess@ gl_GNULIB_ENABLED_getdtablesize = @gl_GNULIB_ENABLED_getdtablesize@ gl_GNULIB_ENABLED_getgroups = @gl_GNULIB_ENABLED_getgroups@ +gl_GNULIB_ENABLED_idx = @gl_GNULIB_ENABLED_idx@ gl_GNULIB_ENABLED_lchmod = @gl_GNULIB_ENABLED_lchmod@ -gl_GNULIB_ENABLED_malloca = @gl_GNULIB_ENABLED_malloca@ gl_GNULIB_ENABLED_open = @gl_GNULIB_ENABLED_open@ +gl_GNULIB_ENABLED_rawmemchr = @gl_GNULIB_ENABLED_rawmemchr@ +gl_GNULIB_ENABLED_scratch_buffer = @gl_GNULIB_ENABLED_scratch_buffer@ gl_GNULIB_ENABLED_strtoll = @gl_GNULIB_ENABLED_strtoll@ gl_GNULIB_ENABLED_utimens = @gl_GNULIB_ENABLED_utimens@ gl_LIBOBJS = @gl_LIBOBJS@ @@ -1731,6 +1747,19 @@ EXTRA_libgnu_a_SOURCES += fpending.c endif ## end gnulib module fpending +## begin gnulib module free-posix +ifeq (,$(OMIT_GNULIB_MODULE_free-posix)) + +ifneq (,$(gl_GNULIB_ENABLED_ef07dc4b3077c11ea9cef586db4e5955)) + +endif +EXTRA_DIST += free.c + +EXTRA_libgnu_a_SOURCES += free.c + +endif +## end gnulib module free-posix + ## begin gnulib module fstatat ifeq (,$(OMIT_GNULIB_MODULE_fstatat)) @@ -1912,6 +1941,16 @@ EXTRA_libgnu_a_SOURCES += group-member.c endif ## end gnulib module group-member +## begin gnulib module idx +ifeq (,$(OMIT_GNULIB_MODULE_idx)) + +ifneq (,$(gl_GNULIB_ENABLED_idx)) +libgnu_a_SOURCES += idx.h + +endif +endif +## end gnulib module idx + ## begin gnulib module ieee754-h ifeq (,$(OMIT_GNULIB_MODULE_ieee754-h)) @@ -2094,18 +2133,6 @@ EXTRA_libgnu_a_SOURCES += lstat.c endif ## end gnulib module lstat -## begin gnulib module malloca -ifeq (,$(OMIT_GNULIB_MODULE_malloca)) - -ifneq (,$(gl_GNULIB_ENABLED_malloca)) -libgnu_a_SOURCES += malloca.c - -endif -EXTRA_DIST += malloca.h - -endif -## end gnulib module malloca - ## begin gnulib module memmem-simple ifeq (,$(OMIT_GNULIB_MODULE_memmem-simple)) @@ -2263,6 +2290,19 @@ libgnu_a_SOURCES += qcopy-acl.c endif ## end gnulib module qcopy-acl +## begin gnulib module rawmemchr +ifeq (,$(OMIT_GNULIB_MODULE_rawmemchr)) + +ifneq (,$(gl_GNULIB_ENABLED_rawmemchr)) + +endif +EXTRA_DIST += rawmemchr.c rawmemchr.valgrind + +EXTRA_libgnu_a_SOURCES += rawmemchr.c + +endif +## end gnulib module rawmemchr + ## begin gnulib module readlink ifeq (,$(OMIT_GNULIB_MODULE_readlink)) @@ -2307,6 +2347,18 @@ EXTRA_DIST += root-uid.h endif ## end gnulib module root-uid +## begin gnulib module scratch_buffer +ifeq (,$(OMIT_GNULIB_MODULE_scratch_buffer)) + +ifneq (,$(gl_GNULIB_ENABLED_scratch_buffer)) +libgnu_a_SOURCES += malloc/scratch_buffer_grow.c malloc/scratch_buffer_grow_preserve.c malloc/scratch_buffer_set_array_size.c + +endif +EXTRA_DIST += malloc/scratch_buffer.h scratch_buffer.h + +endif +## end gnulib module scratch_buffer + ## begin gnulib module sig2str ifeq (,$(OMIT_GNULIB_MODULE_sig2str)) @@ -2618,7 +2670,8 @@ stdio.h: stdio.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(ARG_NONNULL_H) -e 's/@''GNULIB_VSNPRINTF''@/$(GNULIB_VSNPRINTF)/g' \ -e 's/@''GNULIB_VSPRINTF_POSIX''@/$(GNULIB_VSPRINTF_POSIX)/g' \ < $(srcdir)/stdio.in.h | \ - sed -e 's|@''HAVE_DECL_FPURGE''@|$(HAVE_DECL_FPURGE)|g' \ + sed -e 's|@''HAVE_DECL_FCLOSEALL''@|$(HAVE_DECL_FCLOSEALL)|g' \ + -e 's|@''HAVE_DECL_FPURGE''@|$(HAVE_DECL_FPURGE)|g' \ -e 's|@''HAVE_DECL_FSEEKO''@|$(HAVE_DECL_FSEEKO)|g' \ -e 's|@''HAVE_DECL_FTELLO''@|$(HAVE_DECL_FTELLO)|g' \ -e 's|@''HAVE_DECL_GETDELIM''@|$(HAVE_DECL_GETDELIM)|g' \ @@ -2696,9 +2749,11 @@ stdlib.h: stdlib.in.h $(top_builddir)/config.status $(CXXDEFS_H) \ -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \ -e 's|@''NEXT_STDLIB_H''@|$(NEXT_STDLIB_H)|g' \ -e 's/@''GNULIB__EXIT''@/$(GNULIB__EXIT)/g' \ + -e 's/@''GNULIB_ALIGNED_ALLOC''@/$(GNULIB_ALIGNED_ALLOC)/g' \ -e 's/@''GNULIB_ATOLL''@/$(GNULIB_ATOLL)/g' \ -e 's/@''GNULIB_CALLOC_POSIX''@/$(GNULIB_CALLOC_POSIX)/g' \ -e 's/@''GNULIB_CANONICALIZE_FILE_NAME''@/$(GNULIB_CANONICALIZE_FILE_NAME)/g' \ + -e 's/@''GNULIB_FREE_POSIX''@/$(GNULIB_FREE_POSIX)/g' \ -e 's/@''GNULIB_GETLOADAVG''@/$(GNULIB_GETLOADAVG)/g' \ -e 's/@''GNULIB_GETSUBOPT''@/$(GNULIB_GETSUBOPT)/g' \ -e 's/@''GNULIB_GRANTPT''@/$(GNULIB_GRANTPT)/g' \ @@ -2709,6 +2764,7 @@ stdlib.h: stdlib.in.h $(top_builddir)/config.status $(CXXDEFS_H) \ -e 's/@''GNULIB_MKOSTEMPS''@/$(GNULIB_MKOSTEMPS)/g' \ -e 's/@''GNULIB_MKSTEMP''@/$(GNULIB_MKSTEMP)/g' \ -e 's/@''GNULIB_MKSTEMPS''@/$(GNULIB_MKSTEMPS)/g' \ + -e 's/@''GNULIB_POSIX_MEMALIGN''@/$(GNULIB_POSIX_MEMALIGN)/g' \ -e 's/@''GNULIB_POSIX_OPENPT''@/$(GNULIB_POSIX_OPENPT)/g' \ -e 's/@''GNULIB_PTSNAME''@/$(GNULIB_PTSNAME)/g' \ -e 's/@''GNULIB_PTSNAME_R''@/$(GNULIB_PTSNAME_R)/g' \ @@ -2732,8 +2788,12 @@ stdlib.h: stdlib.in.h $(top_builddir)/config.status $(CXXDEFS_H) \ -e 's/@''GNULIB_WCTOMB''@/$(GNULIB_WCTOMB)/g' \ < $(srcdir)/stdlib.in.h | \ sed -e 's|@''HAVE__EXIT''@|$(HAVE__EXIT)|g' \ + -e 's|@''HAVE_ALIGNED_ALLOC''@|$(HAVE_ALIGNED_ALLOC)|g' \ -e 's|@''HAVE_ATOLL''@|$(HAVE_ATOLL)|g' \ -e 's|@''HAVE_CANONICALIZE_FILE_NAME''@|$(HAVE_CANONICALIZE_FILE_NAME)|g' \ + -e 's|@''HAVE_DECL_ECVT''@|$(HAVE_DECL_ECVT)|g' \ + -e 's|@''HAVE_DECL_FCVT''@|$(HAVE_DECL_FCVT)|g' \ + -e 's|@''HAVE_DECL_GCVT''@|$(HAVE_DECL_GCVT)|g' \ -e 's|@''HAVE_DECL_GETLOADAVG''@|$(HAVE_DECL_GETLOADAVG)|g' \ -e 's|@''HAVE_GETSUBOPT''@|$(HAVE_GETSUBOPT)|g' \ -e 's|@''HAVE_GRANTPT''@|$(HAVE_GRANTPT)|g' \ @@ -2745,6 +2805,7 @@ stdlib.h: stdlib.in.h $(top_builddir)/config.status $(CXXDEFS_H) \ -e 's|@''HAVE_MKOSTEMPS''@|$(HAVE_MKOSTEMPS)|g' \ -e 's|@''HAVE_MKSTEMP''@|$(HAVE_MKSTEMP)|g' \ -e 's|@''HAVE_MKSTEMPS''@|$(HAVE_MKSTEMPS)|g' \ + -e 's|@''HAVE_POSIX_MEMALIGN''@|$(HAVE_POSIX_MEMALIGN)|g' \ -e 's|@''HAVE_POSIX_OPENPT''@|$(HAVE_POSIX_OPENPT)|g' \ -e 's|@''HAVE_PTSNAME''@|$(HAVE_PTSNAME)|g' \ -e 's|@''HAVE_PTSNAME_R''@|$(HAVE_PTSNAME_R)|g' \ @@ -2767,12 +2828,15 @@ stdlib.h: stdlib.in.h $(top_builddir)/config.status $(CXXDEFS_H) \ -e 's|@''HAVE_SYS_LOADAVG_H''@|$(HAVE_SYS_LOADAVG_H)|g' \ -e 's|@''HAVE_UNLOCKPT''@|$(HAVE_UNLOCKPT)|g' \ -e 's|@''HAVE_DECL_UNSETENV''@|$(HAVE_DECL_UNSETENV)|g' \ + -e 's|@''REPLACE_ALIGNED_ALLOC''@|$(REPLACE_ALIGNED_ALLOC)|g' \ -e 's|@''REPLACE_CALLOC''@|$(REPLACE_CALLOC)|g' \ -e 's|@''REPLACE_CANONICALIZE_FILE_NAME''@|$(REPLACE_CANONICALIZE_FILE_NAME)|g' \ + -e 's|@''REPLACE_FREE''@|$(REPLACE_FREE)|g' \ -e 's|@''REPLACE_INITSTATE''@|$(REPLACE_INITSTATE)|g' \ -e 's|@''REPLACE_MALLOC''@|$(REPLACE_MALLOC)|g' \ -e 's|@''REPLACE_MBTOWC''@|$(REPLACE_MBTOWC)|g' \ -e 's|@''REPLACE_MKSTEMP''@|$(REPLACE_MKSTEMP)|g' \ + -e 's|@''REPLACE_POSIX_MEMALIGN''@|$(REPLACE_POSIX_MEMALIGN)|g' \ -e 's|@''REPLACE_PTSNAME''@|$(REPLACE_PTSNAME)|g' \ -e 's|@''REPLACE_PTSNAME_R''@|$(REPLACE_PTSNAME_R)|g' \ -e 's|@''REPLACE_PUTENV''@|$(REPLACE_PUTENV)|g' \ @@ -3412,6 +3476,7 @@ unistd.h: unistd.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(ARG_NONNULL_H -e 's|@''HAVE_UNLINKAT''@|$(HAVE_UNLINKAT)|g' \ -e 's|@''HAVE_USLEEP''@|$(HAVE_USLEEP)|g' \ -e 's|@''HAVE_DECL_ENVIRON''@|$(HAVE_DECL_ENVIRON)|g' \ + -e 's|@''HAVE_DECL_EXECVPE''@|$(HAVE_DECL_EXECVPE)|g' \ -e 's|@''HAVE_DECL_FCHDIR''@|$(HAVE_DECL_FCHDIR)|g' \ -e 's|@''HAVE_DECL_FDATASYNC''@|$(HAVE_DECL_FDATASYNC)|g' \ -e 's|@''HAVE_DECL_GETDOMAINNAME''@|$(HAVE_DECL_GETDOMAINNAME)|g' \ diff --git a/lib/idx.h b/lib/idx.h new file mode 100644 index 00000000000..6a7739fa9c7 --- /dev/null +++ b/lib/idx.h @@ -0,0 +1,113 @@ +/* A type for indices and sizes. + + Copyright (C) 2020 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, see . */ + +#ifndef _IDX_H +#define _IDX_H + +/* Get ptrdiff_t. */ +#include + +/* Get PTRDIFF_MAX. */ +#include + +/* The type 'idx_t' holds an (array) index or an (object) size. + Its implementation promotes to a signed integer type, + which can hold the values + 0..2^63-1 (on 64-bit platforms) or + 0..2^31-1 (on 32-bit platforms). + + Why a signed integer type? + + * Security: Signed types can be checked for overflow via + '-fsanitize=undefined', but unsigned types cannot. + + * Comparisons without surprises: ISO C99 § 6.3.1.8 specifies a few + surprising results for comparisons, such as + + (int) -3 < (unsigned long) 7 => false + (int) -3 < (unsigned int) 7 => false + and on 32-bit machines: + (long) -3 < (unsigned int) 7 => false + + This is surprising because the natural comparison order is by + value in the realm of infinite-precision signed integers (ℤ). + + The best way to get rid of such surprises is to use signed types + for numerical integer values, and use unsigned types only for + bit masks and enums. + + Why not use 'size_t' directly? + + * Because 'size_t' is an unsigned type, and a signed type is better. + See above. + + Why not use 'ptrdiff_t' directly? + + * Maintainability: When reading and modifying code, it helps to know that + a certain variable cannot have negative values. For example, when you + have a loop + + int n = ...; + for (int i = 0; i < n; i++) ... + + or + + ptrdiff_t n = ...; + for (ptrdiff_t i = 0; i < n; i++) ... + + you have to ask yourself "what if n < 0?". Whereas in + + idx_t n = ...; + for (idx_t i = 0; i < n; i++) ... + + you know that this case cannot happen. + + Similarly, when a programmer writes + + idx_t = ptr2 - ptr1; + + there is an implied assertion that ptr1 and ptr2 point into the same + object and that ptr1 <= ptr2. + + * Being future-proof: In the future, range types (integers which are + constrained to a certain range of values) may be added to C compilers + or to the C standard. Several programming languages (Ada, Haskell, + Common Lisp, Pascal) already have range types. Such range types may + help producing good code and good warnings. The type 'idx_t' could + then be typedef'ed to a range type that is signed after promotion. */ + +/* In the future, idx_t could be typedef'ed to a signed range type. + The clang "extended integer types", supported in Clang 11 or newer + , + are a special case of range types. However, these types don't support binary + operators with plain integer types (e.g. expressions such as x > 1). + Therefore, they don't behave like signed types (and not like unsigned types + either). So, we cannot use them here. */ + +/* Use the signed type 'ptrdiff_t'. */ +/* Note: ISO C does not mandate that 'size_t' and 'ptrdiff_t' have the same + size, but it is so on all platforms we have seen since 1990. */ +typedef ptrdiff_t idx_t; + +/* IDX_MAX is the maximum value of an idx_t. */ +#define IDX_MAX PTRDIFF_MAX + +/* So far no need has been found for an IDX_WIDTH macro. + Perhaps there should be another macro IDX_VALUE_BITS that does not + count the sign bit and is therefore one less than PTRDIFF_WIDTH. */ + +#endif /* _IDX_H */ diff --git a/lib/intprops.h b/lib/intprops.h index b27f2eea056..bc2107c9295 100644 --- a/lib/intprops.h +++ b/lib/intprops.h @@ -226,7 +226,9 @@ /* True if __builtin_add_overflow (A, B, P) and __builtin_sub_overflow (A, B, P) work when P is non-null. */ -#if 5 <= __GNUC__ && !defined __ICC +/* __builtin_{add,sub}_overflow exists but is not reliable in GCC 5.x and 6.x, + see . */ +#if 7 <= __GNUC__ && !defined __ICC # define _GL_HAS_BUILTIN_ADD_OVERFLOW 1 #elif defined __has_builtin # define _GL_HAS_BUILTIN_ADD_OVERFLOW __has_builtin (__builtin_add_overflow) @@ -244,7 +246,17 @@ /* True if __builtin_add_overflow_p (A, B, C) works, and similarly for __builtin_sub_overflow_p and __builtin_mul_overflow_p. */ -#define _GL_HAS_BUILTIN_OVERFLOW_P (7 <= __GNUC__) +#if defined __clang__ || defined __ICC +/* Clang 11 lacks __builtin_mul_overflow_p, and even if it did it + would presumably run afoul of Clang bug 16404. ICC 2021.1's + __builtin_add_overflow_p etc. are not treated as integral constant + expressions even when all arguments are. */ +# define _GL_HAS_BUILTIN_OVERFLOW_P 0 +#elif defined __has_builtin +# define _GL_HAS_BUILTIN_OVERFLOW_P __has_builtin (__builtin_mul_overflow_p) +#else +# define _GL_HAS_BUILTIN_OVERFLOW_P (7 <= __GNUC__) +#endif /* The _GL*_OVERFLOW macros have the same restrictions as the *_RANGE_OVERFLOW macros, except that they do not assume that operands @@ -377,8 +389,9 @@ _GL_INT_OP_WRAPV (a, b, r, -, _GL_INT_SUBTRACT_RANGE_OVERFLOW) #endif #if _GL_HAS_BUILTIN_MUL_OVERFLOW -# if (9 < __GNUC__ + (3 <= __GNUC_MINOR__) \ - || (__GNUC__ == 8 && 4 <= __GNUC_MINOR__)) +# if ((9 < __GNUC__ + (3 <= __GNUC_MINOR__) \ + || (__GNUC__ == 8 && 4 <= __GNUC_MINOR__)) \ + && !defined __ICC) # define INT_MULTIPLY_WRAPV(a, b, r) __builtin_mul_overflow (a, b, r) # else /* Work around GCC bug 91450. */ @@ -585,4 +598,33 @@ : (tmin) / (a) < (b)) \ : (tmax) / (b) < (a))) +/* The following macros compute A + B, A - B, and A * B, respectively. + If no overflow occurs, they set *R to the result and return 1; + otherwise, they return 0 and may modify *R. + + Example usage: + + long int result; + if (INT_ADD_OK (a, b, &result)) + printf ("result is %ld\n", result); + else + printf ("overflow\n"); + + A, B, and *R should be integers; they need not be the same type, + and they need not be all signed or all unsigned. + + These macros work correctly on all known practical hosts, and do not rely + on undefined behavior due to signed arithmetic overflow. + + These macros are not constant expressions. + + These macros may evaluate their arguments zero or multiple times, so the + arguments should not have side effects. + + These macros are tuned for B being a constant. */ + +#define INT_ADD_OK(a, b, r) ! INT_ADD_WRAPV (a, b, r) +#define INT_SUBTRACT_OK(a, b, r) ! INT_SUBTRACT_WRAPV (a, b, r) +#define INT_MULTIPLY_OK(a, b, r) ! INT_MULTIPLY_WRAPV (a, b, r) + #endif /* _GL_INTPROPS_H */ diff --git a/lib/malloc/scratch_buffer.h b/lib/malloc/scratch_buffer.h new file mode 100644 index 00000000000..b40478637c8 --- /dev/null +++ b/lib/malloc/scratch_buffer.h @@ -0,0 +1,135 @@ +/* Variable-sized buffer with on-stack default allocation. + Copyright (C) 2015-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public + License as published by the Free Software Foundation; either + version 3 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public + License along with the GNU C Library; if not, see + . */ + +#ifndef _SCRATCH_BUFFER_H +#define _SCRATCH_BUFFER_H + +/* Scratch buffers with a default stack allocation and fallback to + heap allocation. It is expected that this function is used in this + way: + + struct scratch_buffer tmpbuf; + scratch_buffer_init (&tmpbuf); + + while (!function_that_uses_buffer (tmpbuf.data, tmpbuf.length)) + if (!scratch_buffer_grow (&tmpbuf)) + return -1; + + scratch_buffer_free (&tmpbuf); + return 0; + + The allocation functions (scratch_buffer_grow, + scratch_buffer_grow_preserve, scratch_buffer_set_array_size) make + sure that the heap allocation, if any, is freed, so that the code + above does not have a memory leak. The buffer still remains in a + state that can be deallocated using scratch_buffer_free, so a loop + like this is valid as well: + + struct scratch_buffer tmpbuf; + scratch_buffer_init (&tmpbuf); + + while (!function_that_uses_buffer (tmpbuf.data, tmpbuf.length)) + if (!scratch_buffer_grow (&tmpbuf)) + break; + + scratch_buffer_free (&tmpbuf); + + scratch_buffer_grow and scratch_buffer_grow_preserve are guaranteed + to grow the buffer by at least 512 bytes. This means that when + using the scratch buffer as a backing store for a non-character + array whose element size, in bytes, is 512 or smaller, the scratch + buffer only has to grow once to make room for at least one more + element. +*/ + +#include +#include +#include + +/* Scratch buffer. Must be initialized with scratch_buffer_init + before its use. */ +struct scratch_buffer { + void *data; /* Pointer to the beginning of the scratch area. */ + size_t length; /* Allocated space at the data pointer, in bytes. */ + union { max_align_t __align; char __c[1024]; } __space; +}; + +/* Initializes *BUFFER so that BUFFER->data points to BUFFER->__space + and BUFFER->length reflects the available space. */ +static inline void +scratch_buffer_init (struct scratch_buffer *buffer) +{ + buffer->data = buffer->__space.__c; + buffer->length = sizeof (buffer->__space); +} + +/* Deallocates *BUFFER (if it was heap-allocated). */ +static inline void +scratch_buffer_free (struct scratch_buffer *buffer) +{ + if (buffer->data != buffer->__space.__c) + free (buffer->data); +} + +/* Grow *BUFFER by some arbitrary amount. The buffer contents is NOT + preserved. Return true on success, false on allocation failure (in + which case the old buffer is freed). On success, the new buffer is + larger than the previous size. On failure, *BUFFER is deallocated, + but remains in a free-able state, and errno is set. */ +bool __libc_scratch_buffer_grow (struct scratch_buffer *buffer); +libc_hidden_proto (__libc_scratch_buffer_grow) + +/* Alias for __libc_scratch_buffer_grow. */ +static __always_inline bool +scratch_buffer_grow (struct scratch_buffer *buffer) +{ + return __glibc_likely (__libc_scratch_buffer_grow (buffer)); +} + +/* Like __libc_scratch_buffer_grow, but preserve the old buffer + contents on success, as a prefix of the new buffer. */ +bool __libc_scratch_buffer_grow_preserve (struct scratch_buffer *buffer); +libc_hidden_proto (__libc_scratch_buffer_grow_preserve) + +/* Alias for __libc_scratch_buffer_grow_preserve. */ +static __always_inline bool +scratch_buffer_grow_preserve (struct scratch_buffer *buffer) +{ + return __glibc_likely (__libc_scratch_buffer_grow_preserve (buffer)); +} + +/* Grow *BUFFER so that it can store at least NELEM elements of SIZE + bytes. The buffer contents are NOT preserved. Both NELEM and SIZE + can be zero. Return true on success, false on allocation failure + (in which case the old buffer is freed, but *BUFFER remains in a + free-able state, and errno is set). It is unspecified whether this + function can reduce the array size. */ +bool __libc_scratch_buffer_set_array_size (struct scratch_buffer *buffer, + size_t nelem, size_t size); +libc_hidden_proto (__libc_scratch_buffer_set_array_size) + +/* Alias for __libc_scratch_set_array_size. */ +static __always_inline bool +scratch_buffer_set_array_size (struct scratch_buffer *buffer, + size_t nelem, size_t size) +{ + return __glibc_likely (__libc_scratch_buffer_set_array_size + (buffer, nelem, size)); +} + +#endif /* _SCRATCH_BUFFER_H */ diff --git a/lib/malloc/scratch_buffer_grow.c b/lib/malloc/scratch_buffer_grow.c new file mode 100644 index 00000000000..41befe3d65f --- /dev/null +++ b/lib/malloc/scratch_buffer_grow.c @@ -0,0 +1,56 @@ +/* Variable-sized buffer with on-stack default allocation. + Copyright (C) 2015-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public + License as published by the Free Software Foundation; either + version 3 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public + License along with the GNU C Library; if not, see + . */ + +#ifndef _LIBC +# include +#endif + +#include +#include + +bool +__libc_scratch_buffer_grow (struct scratch_buffer *buffer) +{ + void *new_ptr; + size_t new_length = buffer->length * 2; + + /* Discard old buffer. */ + scratch_buffer_free (buffer); + + /* Check for overflow. */ + if (__glibc_likely (new_length >= buffer->length)) + new_ptr = malloc (new_length); + else + { + __set_errno (ENOMEM); + new_ptr = NULL; + } + + if (__glibc_unlikely (new_ptr == NULL)) + { + /* Buffer must remain valid to free. */ + scratch_buffer_init (buffer); + return false; + } + + /* Install new heap-based buffer. */ + buffer->data = new_ptr; + buffer->length = new_length; + return true; +} +libc_hidden_def (__libc_scratch_buffer_grow) diff --git a/lib/malloc/scratch_buffer_grow_preserve.c b/lib/malloc/scratch_buffer_grow_preserve.c new file mode 100644 index 00000000000..aef232938d5 --- /dev/null +++ b/lib/malloc/scratch_buffer_grow_preserve.c @@ -0,0 +1,67 @@ +/* Variable-sized buffer with on-stack default allocation. + Copyright (C) 2015-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public + License as published by the Free Software Foundation; either + version 3 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public + License along with the GNU C Library; if not, see + . */ + +#ifndef _LIBC +# include +#endif + +#include +#include +#include + +bool +__libc_scratch_buffer_grow_preserve (struct scratch_buffer *buffer) +{ + size_t new_length = 2 * buffer->length; + void *new_ptr; + + if (buffer->data == buffer->__space.__c) + { + /* Move buffer to the heap. No overflow is possible because + buffer->length describes a small buffer on the stack. */ + new_ptr = malloc (new_length); + if (new_ptr == NULL) + return false; + memcpy (new_ptr, buffer->__space.__c, buffer->length); + } + else + { + /* Buffer was already on the heap. Check for overflow. */ + if (__glibc_likely (new_length >= buffer->length)) + new_ptr = realloc (buffer->data, new_length); + else + { + __set_errno (ENOMEM); + new_ptr = NULL; + } + + if (__glibc_unlikely (new_ptr == NULL)) + { + /* Deallocate, but buffer must remain valid to free. */ + free (buffer->data); + scratch_buffer_init (buffer); + return false; + } + } + + /* Install new heap-based buffer. */ + buffer->data = new_ptr; + buffer->length = new_length; + return true; +} +libc_hidden_def (__libc_scratch_buffer_grow_preserve) diff --git a/lib/malloc/scratch_buffer_set_array_size.c b/lib/malloc/scratch_buffer_set_array_size.c new file mode 100644 index 00000000000..5f5e4c24f5a --- /dev/null +++ b/lib/malloc/scratch_buffer_set_array_size.c @@ -0,0 +1,64 @@ +/* Variable-sized buffer with on-stack default allocation. + Copyright (C) 2015-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public + License as published by the Free Software Foundation; either + version 3 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public + License along with the GNU C Library; if not, see + . */ + +#ifndef _LIBC +# include +#endif + +#include +#include +#include + +bool +__libc_scratch_buffer_set_array_size (struct scratch_buffer *buffer, + size_t nelem, size_t size) +{ + size_t new_length = nelem * size; + + /* Avoid overflow check if both values are small. */ + if ((nelem | size) >> (sizeof (size_t) * CHAR_BIT / 2) != 0 + && nelem != 0 && size != new_length / nelem) + { + /* Overflow. Discard the old buffer, but it must remain valid + to free. */ + scratch_buffer_free (buffer); + scratch_buffer_init (buffer); + __set_errno (ENOMEM); + return false; + } + + if (new_length <= buffer->length) + return true; + + /* Discard old buffer. */ + scratch_buffer_free (buffer); + + char *new_ptr = malloc (new_length); + if (new_ptr == NULL) + { + /* Buffer must remain valid to free. */ + scratch_buffer_init (buffer); + return false; + } + + /* Install new heap-based buffer. */ + buffer->data = new_ptr; + buffer->length = new_length; + return true; +} +libc_hidden_def (__libc_scratch_buffer_set_array_size) diff --git a/lib/rawmemchr.c b/lib/rawmemchr.c new file mode 100644 index 00000000000..04bf08415c6 --- /dev/null +++ b/lib/rawmemchr.c @@ -0,0 +1,136 @@ +/* Searching in a string. + Copyright (C) 2008-2020 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +#include + +/* Specification. */ +#include + +/* Find the first occurrence of C in S. */ +void * +rawmemchr (const void *s, int c_in) +{ + /* On 32-bit hardware, choosing longword to be a 32-bit unsigned + long instead of a 64-bit uintmax_t tends to give better + performance. On 64-bit hardware, unsigned long is generally 64 + bits already. Change this typedef to experiment with + performance. */ + typedef unsigned long int longword; + + const unsigned char *char_ptr; + const longword *longword_ptr; + longword repeated_one; + longword repeated_c; + unsigned char c; + + c = (unsigned char) c_in; + + /* Handle the first few bytes by reading one byte at a time. + Do this until CHAR_PTR is aligned on a longword boundary. */ + for (char_ptr = (const unsigned char *) s; + (size_t) char_ptr % sizeof (longword) != 0; + ++char_ptr) + if (*char_ptr == c) + return (void *) char_ptr; + + longword_ptr = (const longword *) char_ptr; + + /* All these elucidatory comments refer to 4-byte longwords, + but the theory applies equally well to any size longwords. */ + + /* Compute auxiliary longword values: + repeated_one is a value which has a 1 in every byte. + repeated_c has c in every byte. */ + repeated_one = 0x01010101; + repeated_c = c | (c << 8); + repeated_c |= repeated_c << 16; + if (0xffffffffU < (longword) -1) + { + repeated_one |= repeated_one << 31 << 1; + repeated_c |= repeated_c << 31 << 1; + if (8 < sizeof (longword)) + { + size_t i; + + for (i = 64; i < sizeof (longword) * 8; i *= 2) + { + repeated_one |= repeated_one << i; + repeated_c |= repeated_c << i; + } + } + } + + /* Instead of the traditional loop which tests each byte, we will + test a longword at a time. The tricky part is testing if *any of + the four* bytes in the longword in question are equal to NUL or + c. We first use an xor with repeated_c. This reduces the task + to testing whether *any of the four* bytes in longword1 is zero. + + We compute tmp = + ((longword1 - repeated_one) & ~longword1) & (repeated_one << 7). + That is, we perform the following operations: + 1. Subtract repeated_one. + 2. & ~longword1. + 3. & a mask consisting of 0x80 in every byte. + Consider what happens in each byte: + - If a byte of longword1 is zero, step 1 and 2 transform it into 0xff, + and step 3 transforms it into 0x80. A carry can also be propagated + to more significant bytes. + - If a byte of longword1 is nonzero, let its lowest 1 bit be at + position k (0 <= k <= 7); so the lowest k bits are 0. After step 1, + the byte ends in a single bit of value 0 and k bits of value 1. + After step 2, the result is just k bits of value 1: 2^k - 1. After + step 3, the result is 0. And no carry is produced. + So, if longword1 has only non-zero bytes, tmp is zero. + Whereas if longword1 has a zero byte, call j the position of the least + significant zero byte. Then the result has a zero at positions 0, ..., + j-1 and a 0x80 at position j. We cannot predict the result at the more + significant bytes (positions j+1..3), but it does not matter since we + already have a non-zero bit at position 8*j+7. + + The test whether any byte in longword1 is zero is equivalent + to testing whether tmp is nonzero. + + This test can read beyond the end of a string, depending on where + C_IN is encountered. However, this is considered safe since the + initialization phase ensured that the read will be aligned, + therefore, the read will not cross page boundaries and will not + cause a fault. */ + + while (1) + { + longword longword1 = *longword_ptr ^ repeated_c; + + if ((((longword1 - repeated_one) & ~longword1) + & (repeated_one << 7)) != 0) + break; + longword_ptr++; + } + + char_ptr = (const unsigned char *) longword_ptr; + + /* At this point, we know that one of the sizeof (longword) bytes + starting at char_ptr is == c. On little-endian machines, we + could determine the first such byte without any further memory + accesses, just by looking at the tmp result from the last loop + iteration. But this does not work on big-endian machines. + Choose code that works in both cases. */ + + char_ptr = (unsigned char *) longword_ptr; + while (*char_ptr != c) + char_ptr++; + return (void *) char_ptr; +} diff --git a/lib/rawmemchr.valgrind b/lib/rawmemchr.valgrind new file mode 100644 index 00000000000..53c5b317d5f --- /dev/null +++ b/lib/rawmemchr.valgrind @@ -0,0 +1,28 @@ +# Suppress a valgrind message about use of uninitialized memory in rawmemchr(). + +# Copyright (C) 2008-2020 Free Software Foundation, Inc. +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +# This use is OK because it provides only a speedup. +{ + rawmemchr-value4 + Memcheck:Value4 + fun:rawmemchr +} +{ + rawmemchr-value8 + Memcheck:Value8 + fun:rawmemchr +} diff --git a/lib/readlink.c b/lib/readlink.c index 4d392ef6995..531913eba3e 100644 --- a/lib/readlink.c +++ b/lib/readlink.c @@ -1,4 +1,4 @@ -/* Stub for readlink(). +/* Read the contents of a symbolic link. Copyright (C) 2003-2007, 2009-2020 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify @@ -29,7 +29,7 @@ such as DJGPP 2.03 and mingw32. */ ssize_t -readlink (const char *name, char *buf _GL_UNUSED, +readlink (char const *file, char *buf _GL_UNUSED, size_t bufsize _GL_UNUSED) { struct stat statbuf; @@ -37,7 +37,7 @@ readlink (const char *name, char *buf _GL_UNUSED, /* In general we should use lstat() here, not stat(). But on platforms without symbolic links, lstat() - if it exists - would be equivalent to stat(), therefore we can use stat(). This saves us a configure check. */ - if (stat (name, &statbuf) >= 0) + if (stat (file, &statbuf) >= 0) errno = EINVAL; return -1; } @@ -51,24 +51,54 @@ readlink (const char *name, char *buf _GL_UNUSED, for Solaris 9. */ ssize_t -rpl_readlink (const char *name, char *buf, size_t bufsize) +rpl_readlink (char const *file, char *buf, size_t bufsize) { # if READLINK_TRAILING_SLASH_BUG - size_t len = strlen (name); - if (len && name[len - 1] == '/') + size_t file_len = strlen (file); + if (file_len && file[file_len - 1] == '/') { - /* Even if name without the slash is a symlink to a directory, + /* Even if FILE without the slash is a symlink to a directory, both lstat() and stat() must resolve the trailing slash to the directory rather than the symlink. We can therefore safely use stat() to distinguish between EINVAL and ENOTDIR/ENOENT, avoiding extra overhead of rpl_lstat(). */ struct stat st; - if (stat (name, &st) == 0) + if (stat (file, &st) == 0 || errno == EOVERFLOW) errno = EINVAL; return -1; } # endif /* READLINK_TRAILING_SLASH_BUG */ - return readlink (name, buf, bufsize); + + ssize_t r = readlink (file, buf, bufsize); + +# if READLINK_TRUNCATE_BUG + if (r < 0 && errno == ERANGE) + { + /* Try again with a bigger buffer. This is just for test cases; + real code invariably discards short reads. */ + char stackbuf[4032]; + r = readlink (file, stackbuf, sizeof stackbuf); + if (r < 0) + { + if (errno == ERANGE) + { + /* Clear the buffer, which is good enough for real code. + Thankfully, no test cases try short reads of enormous + symlinks and what would be the point anyway? */ + r = bufsize; + memset (buf, 0, r); + } + } + else + { + if (bufsize < r) + r = bufsize; + memcpy (buf, stackbuf, r); + } + } +# endif + + return r; } #endif /* HAVE_READLINK */ diff --git a/lib/readlinkat.c b/lib/readlinkat.c index 68ec65ebfc5..7a41208ebfd 100644 --- a/lib/readlinkat.c +++ b/lib/readlinkat.c @@ -28,10 +28,11 @@ #if HAVE_READLINKAT +# undef fstatat # undef readlinkat ssize_t -rpl_readlinkat (int fd, char const *file, char *buf, size_t len) +rpl_readlinkat (int fd, char const *file, char *buf, size_t bufsize) { # if READLINK_TRAILING_SLASH_BUG size_t file_len = strlen (file); @@ -40,15 +41,45 @@ rpl_readlinkat (int fd, char const *file, char *buf, size_t len) /* Even if FILE without the slash is a symlink to a directory, both lstat() and stat() must resolve the trailing slash to the directory rather than the symlink. We can therefore - safely use stat() to distinguish between EINVAL and - ENOTDIR/ENOENT, avoiding extra overhead of rpl_lstat(). */ + safely use fstatat(..., 0) to distinguish between EINVAL and + ENOTDIR/ENOENT, avoiding extra overhead of rpl_fstatat(). */ struct stat st; - if (stat (file, &st) == 0) + if (fstatat (fd, file, &st, 0) == 0 || errno == EOVERFLOW) errno = EINVAL; return -1; } # endif /* READLINK_TRAILING_SLASH_BUG */ - return readlinkat (fd, file, buf, len); + + ssize_t r = readlinkat (fd, file, buf, bufsize); + +# if READLINK_TRUNCATE_BUG + if (r < 0 && errno == ERANGE) + { + /* Try again with a bigger buffer. This is just for test cases; + real code invariably discards short reads. */ + char stackbuf[4032]; + r = readlinkat (fd, file, stackbuf, sizeof stackbuf); + if (r < 0) + { + if (errno == ERANGE) + { + /* Clear the buffer, which is good enough for real code. + Thankfully, no test cases try short reads of enormous + symlinks and what would be the point anyway? */ + r = bufsize; + memset (buf, 0, r); + } + } + else + { + if (bufsize < r) + r = bufsize; + memcpy (buf, stackbuf, r); + } + } +# endif + + return r; } #else @@ -61,7 +92,7 @@ rpl_readlinkat (int fd, char const *file, char *buf, size_t len) readlinkat worthless since readlink does not guarantee a NUL-terminated buffer. Assume this was a bug in POSIX. */ -/* Read the contents of symlink FILE into buffer BUF of size LEN, in the +/* Read the contents of symlink FILE into buffer BUF of size BUFSIZE, in the directory open on descriptor FD. If possible, do it without changing the working directory. Otherwise, resort to using save_cwd/fchdir, then readlink/restore_cwd. If either the save_cwd or the restore_cwd @@ -69,8 +100,8 @@ rpl_readlinkat (int fd, char const *file, char *buf, size_t len) # define AT_FUNC_NAME readlinkat # define AT_FUNC_F1 readlink -# define AT_FUNC_POST_FILE_PARAM_DECLS , char *buf, size_t len -# define AT_FUNC_POST_FILE_ARGS , buf, len +# define AT_FUNC_POST_FILE_PARAM_DECLS , char *buf, size_t bufsize +# define AT_FUNC_POST_FILE_ARGS , buf, bufsize # define AT_FUNC_RESULT ssize_t # include "at-func.c" # undef AT_FUNC_NAME diff --git a/lib/regex_internal.c b/lib/regex_internal.c index 2e217291468..bf9439e53fd 100644 --- a/lib/regex_internal.c +++ b/lib/regex_internal.c @@ -300,18 +300,20 @@ build_wcs_upper_buffer (re_string_t *pstr) while (byte_idx < end_idx) { wchar_t wc; + unsigned char ch = pstr->raw_mbs[pstr->raw_mbs_idx + byte_idx]; - if (isascii (pstr->raw_mbs[pstr->raw_mbs_idx + byte_idx]) - && mbsinit (&pstr->cur_state)) + if (isascii (ch) && mbsinit (&pstr->cur_state)) { - /* In case of a singlebyte character. */ - pstr->mbs[byte_idx] - = toupper (pstr->raw_mbs[pstr->raw_mbs_idx + byte_idx]); /* The next step uses the assumption that wchar_t is encoded ASCII-safe: all ASCII values can be converted like this. */ - pstr->wcs[byte_idx] = (wchar_t) pstr->mbs[byte_idx]; - ++byte_idx; - continue; + wchar_t wcu = __towupper (ch); + if (isascii (wcu)) + { + pstr->mbs[byte_idx] = wcu; + pstr->wcs[byte_idx] = wcu; + byte_idx++; + continue; + } } remain_len = end_idx - byte_idx; @@ -348,7 +350,6 @@ build_wcs_upper_buffer (re_string_t *pstr) { /* It is an invalid character, an incomplete character at the end of the string, or '\0'. Just use the byte. */ - int ch = pstr->raw_mbs[pstr->raw_mbs_idx + byte_idx]; pstr->mbs[byte_idx] = ch; /* And also cast it to wide char. */ pstr->wcs[byte_idx++] = (wchar_t) ch; diff --git a/lib/regex_internal.h b/lib/regex_internal.h index 0c72e3f7b01..7b50b478114 100644 --- a/lib/regex_internal.h +++ b/lib/regex_internal.h @@ -77,6 +77,14 @@ # define isblank(ch) ((ch) == ' ' || (ch) == '\t') #endif +/* regex code assumes isascii has its usual numeric meaning, + even if the portable character set uses EBCDIC encoding, + and even if wint_t is wider than int. */ +#ifndef _LIBC +# undef isascii +# define isascii(c) (((c) & ~0x7f) == 0) +#endif + #ifdef _LIBC # ifndef _RE_DEFINE_LOCALE_FUNCTIONS # define _RE_DEFINE_LOCALE_FUNCTIONS 1 diff --git a/lib/scratch_buffer.h b/lib/scratch_buffer.h new file mode 100644 index 00000000000..0b45f92c105 --- /dev/null +++ b/lib/scratch_buffer.h @@ -0,0 +1,29 @@ +/* Variable-sized buffer with on-stack default allocation. + Copyright (C) 2017-2020 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +/* Written by Paul Eggert, 2017. */ + +#ifndef _GL_SCRATCH_BUFFER_H +#define _GL_SCRATCH_BUFFER_H + +#include + +#define __libc_scratch_buffer_grow gl_scratch_buffer_grow +#define __libc_scratch_buffer_grow_preserve gl_scratch_buffer_grow_preserve +#define __libc_scratch_buffer_set_array_size gl_scratch_buffer_set_array_size +#include + +#endif /* _GL_SCRATCH_BUFFER_H */ diff --git a/lib/signal.in.h b/lib/signal.in.h index c94b053d6af..70a2d4af6ca 100644 --- a/lib/signal.in.h +++ b/lib/signal.in.h @@ -55,13 +55,13 @@ #ifndef _@GUARD_PREFIX@_SIGNAL_H #define _@GUARD_PREFIX@_SIGNAL_H -/* Mac OS X 10.3, FreeBSD 6.4, OpenBSD 3.8, OSF/1 4.0, Solaris 2.6, Android - declare pthread_sigmask in , not in . +/* Mac OS X 10.3, FreeBSD 6.4, OpenBSD 3.8, OSF/1 4.0, Solaris 2.6, Android, + OS/2 kLIBC declare pthread_sigmask in , not in . But avoid namespace pollution on glibc systems.*/ #if (@GNULIB_PTHREAD_SIGMASK@ || defined GNULIB_POSIXCHECK) \ && ((defined __APPLE__ && defined __MACH__) \ || defined __FreeBSD__ || defined __OpenBSD__ || defined __osf__ \ - || defined __sun || defined __ANDROID__) \ + || defined __sun || defined __ANDROID__ || defined __KLIBC__) \ && ! defined __GLIBC__ # include #endif diff --git a/lib/stdint.in.h b/lib/stdint.in.h index 63fa1aa628f..6f2235a750a 100644 --- a/lib/stdint.in.h +++ b/lib/stdint.in.h @@ -579,11 +579,6 @@ typedef int _verify_intmax_size[sizeof (intmax_t) == sizeof (uintmax_t) -> -> -> , and the latter includes and assumes its types are already defined. */ # if @HAVE_WCHAR_H@ && ! (defined WCHAR_MIN && defined WCHAR_MAX) - /* BSD/OS 4.0.1 has a bug: , and must be - included before . */ -# include -# include -# include # define _GL_JUST_INCLUDE_SYSTEM_WCHAR_H # include # undef _GL_JUST_INCLUDE_SYSTEM_WCHAR_H diff --git a/lib/stdio-impl.h b/lib/stdio-impl.h index 067b95ebd64..15066aa59f8 100644 --- a/lib/stdio-impl.h +++ b/lib/stdio-impl.h @@ -175,7 +175,7 @@ # define fp_ fp # endif -# if defined _SCO_DS /* OpenServer */ +# if defined _SCO_DS || (defined __SCO_VERSION__ || defined __sysv5__) /* OpenServer 5, OpenServer 6, UnixWare 7 */ # define _cnt __cnt # define _ptr __ptr # define _base __base diff --git a/lib/stdio.in.h b/lib/stdio.in.h index 6d12cd826de..458036b3441 100644 --- a/lib/stdio.in.h +++ b/lib/stdio.in.h @@ -70,30 +70,44 @@ # endif #endif -/* _GL_ATTRIBUTE_FORMAT_PRINTF - indicates to GCC that the function takes a format string and arguments, - where the format string directives are the ones standardized by ISO C99 - and POSIX. */ +/* An __attribute__ __format__ specifier for a function that takes a format + string and arguments, where the format string directives are the ones + standardized by ISO C99 and POSIX. + _GL_ATTRIBUTE_SPEC_PRINTF_STANDARD */ +/* __gnu_printf__ is supported in GCC >= 4.4. */ #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4) -# define _GL_ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \ - _GL_ATTRIBUTE_FORMAT ((__gnu_printf__, formatstring_parameter, first_argument)) +# define _GL_ATTRIBUTE_SPEC_PRINTF_STANDARD __gnu_printf__ #else -# define _GL_ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \ - _GL_ATTRIBUTE_FORMAT ((__printf__, formatstring_parameter, first_argument)) +# define _GL_ATTRIBUTE_SPEC_PRINTF_STANDARD __printf__ #endif -/* _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM is like _GL_ATTRIBUTE_FORMAT_PRINTF, - except that it indicates to GCC that the supported format string directives - are the ones of the system printf(), rather than the ones standardized by - ISO C99 and POSIX. */ +/* An __attribute__ __format__ specifier for a function that takes a format + string and arguments, where the format string directives are the ones of the + system printf(), rather than the ones standardized by ISO C99 and POSIX. + _GL_ATTRIBUTE_SPEC_PRINTF_SYSTEM */ +/* On mingw, Gnulib sets __USE_MINGW_ANSI_STDIO in order to get closer to + the standards. The macro GNULIB_PRINTF_ATTRIBUTE_FLAVOR_GNU indicates + whether this change is effective. On older mingw, it is not. */ #if GNULIB_PRINTF_ATTRIBUTE_FLAVOR_GNU -# define _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM(formatstring_parameter, first_argument) \ - _GL_ATTRIBUTE_FORMAT_PRINTF (formatstring_parameter, first_argument) +# define _GL_ATTRIBUTE_SPEC_PRINTF_SYSTEM _GL_ATTRIBUTE_SPEC_PRINTF_STANDARD #else -# define _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM(formatstring_parameter, first_argument) \ - _GL_ATTRIBUTE_FORMAT ((__printf__, formatstring_parameter, first_argument)) +# define _GL_ATTRIBUTE_SPEC_PRINTF_SYSTEM __printf__ #endif +/* _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD + indicates to GCC that the function takes a format string and arguments, + where the format string directives are the ones standardized by ISO C99 + and POSIX. */ +#define _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD(formatstring_parameter, first_argument) \ + _GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_STANDARD, formatstring_parameter, first_argument)) + +/* _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM is like _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD, + except that it indicates to GCC that the supported format string directives + are the ones of the system printf(), rather than the ones standardized by + ISO C99 and POSIX. */ +#define _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM(formatstring_parameter, first_argument) \ + _GL_ATTRIBUTE_FORMAT ((_GL_ATTRIBUTE_SPEC_PRINTF_SYSTEM, formatstring_parameter, first_argument)) + /* _GL_ATTRIBUTE_FORMAT_SCANF indicates to GCC that the function takes a format string and arguments, where the format string directives are the ones standardized by ISO C99 @@ -174,13 +188,13 @@ # define dprintf rpl_dprintf # endif _GL_FUNCDECL_RPL (dprintf, int, (int fd, const char *restrict format, ...) - _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3) + _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3) _GL_ARG_NONNULL ((2))); _GL_CXXALIAS_RPL (dprintf, int, (int fd, const char *restrict format, ...)); # else # if !@HAVE_DPRINTF@ _GL_FUNCDECL_SYS (dprintf, int, (int fd, const char *restrict format, ...) - _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3) + _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3) _GL_ARG_NONNULL ((2))); # endif _GL_CXXALIAS_SYS (dprintf, int, (int fd, const char *restrict format, ...)); @@ -215,9 +229,27 @@ _GL_WARN_ON_USE (fclose, "fclose is not always POSIX compliant - " "use gnulib module fclose for portable POSIX compliance"); #endif +/* On native Windows, map 'fcloseall' to '_fcloseall', so that -loldnames is + not required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::fcloseall on all platforms that have + it. */ #if defined _WIN32 && !defined __CYGWIN__ -# undef fcloseall -# define fcloseall _fcloseall +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef fcloseall +# define fcloseall _fcloseall +# endif +_GL_CXXALIAS_MDA (fcloseall, int, (void)); +#else +# if @HAVE_DECL_FCLOSEALL@ +# if defined __FreeBSD__ +_GL_CXXALIAS_SYS (fcloseall, void, (void)); +# else +_GL_CXXALIAS_SYS (fcloseall, int, (void)); +# endif +# endif +#endif +#if (defined _WIN32 && !defined __CYGWIN__) || @HAVE_DECL_FCLOSEALL@ +_GL_CXXALIASWARN (fcloseall); #endif #if @GNULIB_FDOPEN@ @@ -244,9 +276,20 @@ _GL_CXXALIASWARN (fdopen); /* Assume fdopen is always declared. */ _GL_WARN_ON_USE (fdopen, "fdopen on native Windows platforms is not POSIX compliant - " "use gnulib module fdopen for portability"); -#elif defined _WIN32 && !defined __CYGWIN__ -# undef fdopen -# define fdopen _fdopen +#else +/* On native Windows, map 'fdopen' to '_fdopen', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::fdopen always. */ +# if defined _WIN32 && !defined __CYGWIN__ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef fdopen +# define fdopen _fdopen +# endif +_GL_CXXALIAS_MDA (fdopen, FILE *, (int fd, const char *mode)); +# else +_GL_CXXALIAS_SYS (fdopen, FILE *, (int fd, const char *mode)); +# endif +_GL_CXXALIASWARN (fdopen); #endif #if @GNULIB_FFLUSH@ @@ -311,10 +354,19 @@ _GL_CXXALIASWARN (fgets); # endif #endif +/* On native Windows, map 'fileno' to '_fileno', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::fileno always. */ #if defined _WIN32 && !defined __CYGWIN__ -# undef fileno -# define fileno _fileno +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef fileno +# define fileno _fileno +# endif +_GL_CXXALIAS_MDA (fileno, int, (FILE *restrict stream)); +#else +_GL_CXXALIAS_SYS (fileno, int, (FILE *restrict stream)); #endif +_GL_CXXALIASWARN (fileno); #if @GNULIB_FOPEN@ # if @REPLACE_FOPEN@ @@ -351,7 +403,7 @@ _GL_WARN_ON_USE (fopen, "fopen on native Windows platforms is not POSIX complian # if @GNULIB_FPRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@ _GL_FUNCDECL_RPL (fprintf, int, (FILE *restrict fp, const char *restrict format, ...) - _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3) + _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3) _GL_ARG_NONNULL ((1, 2))); # else _GL_FUNCDECL_RPL (fprintf, int, @@ -843,10 +895,19 @@ _GL_WARN_ON_USE (getline, "getline is unportable - " _GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead"); #endif +/* On native Windows, map 'getw' to '_getw', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::getw always. */ #if defined _WIN32 && !defined __CYGWIN__ -# undef getw -# define getw _getw +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef getw +# define getw _getw +# endif +_GL_CXXALIAS_MDA (getw, int, (FILE *restrict stream)); +#else +_GL_CXXALIAS_SYS (getw, int, (FILE *restrict stream)); #endif +_GL_CXXALIASWARN (getw); #if @GNULIB_OBSTACK_PRINTF@ || @GNULIB_OBSTACK_PRINTF_POSIX@ struct obstack; @@ -861,7 +922,7 @@ struct obstack; # endif _GL_FUNCDECL_RPL (obstack_printf, int, (struct obstack *obs, const char *format, ...) - _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3) + _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3) _GL_ARG_NONNULL ((1, 2))); _GL_CXXALIAS_RPL (obstack_printf, int, (struct obstack *obs, const char *format, ...)); @@ -869,7 +930,7 @@ _GL_CXXALIAS_RPL (obstack_printf, int, # if !@HAVE_DECL_OBSTACK_PRINTF@ _GL_FUNCDECL_SYS (obstack_printf, int, (struct obstack *obs, const char *format, ...) - _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3) + _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3) _GL_ARG_NONNULL ((1, 2))); # endif _GL_CXXALIAS_SYS (obstack_printf, int, @@ -882,7 +943,7 @@ _GL_CXXALIASWARN (obstack_printf); # endif _GL_FUNCDECL_RPL (obstack_vprintf, int, (struct obstack *obs, const char *format, va_list args) - _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0) + _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0) _GL_ARG_NONNULL ((1, 2))); _GL_CXXALIAS_RPL (obstack_vprintf, int, (struct obstack *obs, const char *format, va_list args)); @@ -890,7 +951,7 @@ _GL_CXXALIAS_RPL (obstack_vprintf, int, # if !@HAVE_DECL_OBSTACK_PRINTF@ _GL_FUNCDECL_SYS (obstack_vprintf, int, (struct obstack *obs, const char *format, va_list args) - _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0) + _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0) _GL_ARG_NONNULL ((1, 2))); # endif _GL_CXXALIAS_SYS (obstack_vprintf, int, @@ -974,7 +1035,7 @@ _GL_FUNCDECL_RPL_1 (__printf__, int, (const char *restrict format, ...) __asm__ (@ASM_SYMBOL_PREFIX@ _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_printf)) - _GL_ATTRIBUTE_FORMAT_PRINTF (1, 2) + _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (1, 2) _GL_ARG_NONNULL ((1))); # else _GL_FUNCDECL_RPL_1 (__printf__, int, @@ -991,7 +1052,7 @@ _GL_CXXALIAS_RPL_1 (printf, __printf__, int, (const char *format, ...)); # endif _GL_FUNCDECL_RPL (printf, int, (const char *restrict format, ...) - _GL_ATTRIBUTE_FORMAT_PRINTF (1, 2) + _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (1, 2) _GL_ARG_NONNULL ((1))); _GL_CXXALIAS_RPL (printf, int, (const char *restrict format, ...)); # endif @@ -1061,10 +1122,19 @@ _GL_CXXALIASWARN (puts); # endif #endif +/* On native Windows, map 'putw' to '_putw', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::putw always. */ #if defined _WIN32 && !defined __CYGWIN__ -# undef putw -# define putw _putw +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef putw +# define putw _putw +# endif +_GL_CXXALIAS_MDA (putw, int, (int w, FILE *restrict stream)); +#else +_GL_CXXALIAS_SYS (putw, int, (int w, FILE *restrict stream)); #endif +_GL_CXXALIASWARN (putw); #if @GNULIB_REMOVE@ # if @REPLACE_REMOVE@ @@ -1182,7 +1252,7 @@ _GL_CXXALIASWARN (scanf); _GL_FUNCDECL_RPL (snprintf, int, (char *restrict str, size_t size, const char *restrict format, ...) - _GL_ATTRIBUTE_FORMAT_PRINTF (3, 4) + _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (3, 4) _GL_ARG_NONNULL ((3))); _GL_CXXALIAS_RPL (snprintf, int, (char *restrict str, size_t size, @@ -1192,7 +1262,7 @@ _GL_CXXALIAS_RPL (snprintf, int, _GL_FUNCDECL_SYS (snprintf, int, (char *restrict str, size_t size, const char *restrict format, ...) - _GL_ATTRIBUTE_FORMAT_PRINTF (3, 4) + _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (3, 4) _GL_ARG_NONNULL ((3))); # endif _GL_CXXALIAS_SYS (snprintf, int, @@ -1226,7 +1296,7 @@ _GL_WARN_ON_USE (snprintf, "snprintf is unportable - " # endif _GL_FUNCDECL_RPL (sprintf, int, (char *restrict str, const char *restrict format, ...) - _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3) + _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3) _GL_ARG_NONNULL ((1, 2))); _GL_CXXALIAS_RPL (sprintf, int, (char *restrict str, const char *restrict format, ...)); @@ -1245,10 +1315,19 @@ _GL_WARN_ON_USE (sprintf, "sprintf is not always POSIX compliant - " "POSIX compliance"); #endif +/* On native Windows, map 'tempnam' to '_tempnam', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::tempnam always. */ #if defined _WIN32 && !defined __CYGWIN__ -# undef tempnam -# define tempnam _tempnam +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef tempnam +# define tempnam _tempnam +# endif +_GL_CXXALIAS_MDA (tempnam, char *, (const char *dir, const char *prefix)); +#else +_GL_CXXALIAS_SYS (tempnam, char *, (const char *dir, const char *prefix)); #endif +_GL_CXXALIASWARN (tempnam); #if @GNULIB_TMPFILE@ # if @REPLACE_TMPFILE@ @@ -1282,7 +1361,7 @@ _GL_WARN_ON_USE (tmpfile, "tmpfile is not usable on mingw - " # endif _GL_FUNCDECL_RPL (asprintf, int, (char **result, const char *format, ...) - _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3) + _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3) _GL_ARG_NONNULL ((1, 2))); _GL_CXXALIAS_RPL (asprintf, int, (char **result, const char *format, ...)); @@ -1290,7 +1369,7 @@ _GL_CXXALIAS_RPL (asprintf, int, # if !@HAVE_VASPRINTF@ _GL_FUNCDECL_SYS (asprintf, int, (char **result, const char *format, ...) - _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3) + _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 3) _GL_ARG_NONNULL ((1, 2))); # endif _GL_CXXALIAS_SYS (asprintf, int, @@ -1303,7 +1382,7 @@ _GL_CXXALIASWARN (asprintf); # endif _GL_FUNCDECL_RPL (vasprintf, int, (char **result, const char *format, va_list args) - _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0) + _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0) _GL_ARG_NONNULL ((1, 2))); _GL_CXXALIAS_RPL (vasprintf, int, (char **result, const char *format, va_list args)); @@ -1311,7 +1390,7 @@ _GL_CXXALIAS_RPL (vasprintf, int, # if !@HAVE_VASPRINTF@ _GL_FUNCDECL_SYS (vasprintf, int, (char **result, const char *format, va_list args) - _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0) + _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0) _GL_ARG_NONNULL ((1, 2))); # endif _GL_CXXALIAS_SYS (vasprintf, int, @@ -1327,7 +1406,7 @@ _GL_CXXALIASWARN (vasprintf); # endif _GL_FUNCDECL_RPL (vdprintf, int, (int fd, const char *restrict format, va_list args) - _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0) + _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0) _GL_ARG_NONNULL ((2))); _GL_CXXALIAS_RPL (vdprintf, int, (int fd, const char *restrict format, va_list args)); @@ -1335,7 +1414,7 @@ _GL_CXXALIAS_RPL (vdprintf, int, # if !@HAVE_VDPRINTF@ _GL_FUNCDECL_SYS (vdprintf, int, (int fd, const char *restrict format, va_list args) - _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0) + _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0) _GL_ARG_NONNULL ((2))); # endif /* Need to cast, because on Solaris, the third parameter will likely be @@ -1365,7 +1444,7 @@ _GL_WARN_ON_USE (vdprintf, "vdprintf is unportable - " _GL_FUNCDECL_RPL (vfprintf, int, (FILE *restrict fp, const char *restrict format, va_list args) - _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0) + _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0) _GL_ARG_NONNULL ((1, 2))); # else _GL_FUNCDECL_RPL (vfprintf, int, @@ -1432,7 +1511,7 @@ _GL_CXXALIASWARN (vfscanf); # define GNULIB_overrides_vprintf 1 # if @GNULIB_VPRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@ _GL_FUNCDECL_RPL (vprintf, int, (const char *restrict format, va_list args) - _GL_ATTRIBUTE_FORMAT_PRINTF (1, 0) + _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (1, 0) _GL_ARG_NONNULL ((1))); # else _GL_FUNCDECL_RPL (vprintf, int, (const char *restrict format, va_list args) @@ -1487,7 +1566,7 @@ _GL_CXXALIASWARN (vscanf); _GL_FUNCDECL_RPL (vsnprintf, int, (char *restrict str, size_t size, const char *restrict format, va_list args) - _GL_ATTRIBUTE_FORMAT_PRINTF (3, 0) + _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (3, 0) _GL_ARG_NONNULL ((3))); _GL_CXXALIAS_RPL (vsnprintf, int, (char *restrict str, size_t size, @@ -1497,7 +1576,7 @@ _GL_CXXALIAS_RPL (vsnprintf, int, _GL_FUNCDECL_SYS (vsnprintf, int, (char *restrict str, size_t size, const char *restrict format, va_list args) - _GL_ATTRIBUTE_FORMAT_PRINTF (3, 0) + _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (3, 0) _GL_ARG_NONNULL ((3))); # endif _GL_CXXALIAS_SYS (vsnprintf, int, @@ -1523,7 +1602,7 @@ _GL_WARN_ON_USE (vsnprintf, "vsnprintf is unportable - " _GL_FUNCDECL_RPL (vsprintf, int, (char *restrict str, const char *restrict format, va_list args) - _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0) + _GL_ATTRIBUTE_FORMAT_PRINTF_STANDARD (2, 0) _GL_ARG_NONNULL ((1, 2))); _GL_CXXALIAS_RPL (vsprintf, int, (char *restrict str, diff --git a/lib/stdlib.in.h b/lib/stdlib.in.h index 47a1309e633..1964443a22f 100644 --- a/lib/stdlib.in.h +++ b/lib/stdlib.in.h @@ -53,8 +53,8 @@ # include #endif -/* Native Windows platforms declare mktemp() in . */ -#if 0 && (defined _WIN32 && ! defined __CYGWIN__) +/* Native Windows platforms declare _mktemp() in . */ +#if defined _WIN32 && !defined __CYGWIN__ # include #endif @@ -149,6 +149,31 @@ _GL_WARN_ON_USE (_Exit, "_Exit is unportable - " #endif +/* Allocate memory with indefinite extent and specified alignment. */ +#if @GNULIB_ALIGNED_ALLOC@ +# if @REPLACE_ALIGNED_ALLOC@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef aligned_alloc +# define aligned_alloc rpl_aligned_alloc +# endif +_GL_FUNCDECL_RPL (aligned_alloc, void *, (size_t alignment, size_t size)); +_GL_CXXALIAS_RPL (aligned_alloc, void *, (size_t alignment, size_t size)); +# else +# if @HAVE_ALIGNED_ALLOC@ +_GL_CXXALIAS_SYS (aligned_alloc, void *, (size_t alignment, size_t size)); +# endif +# endif +# if @HAVE_ALIGNED_ALLOC@ +_GL_CXXALIASWARN (aligned_alloc); +# endif +#elif defined GNULIB_POSIXCHECK +# undef aligned_alloc +# if HAVE_RAW_DECL_ALIGNED_ALLOC +_GL_WARN_ON_USE (aligned_alloc, "aligned_alloc is not portable - " + "use gnulib module aligned_alloc for portability"); +# endif +#endif + #if @GNULIB_ATOLL@ /* Parse a signed decimal integer. Returns the value of the integer. Errors are not detected. */ @@ -217,19 +242,86 @@ _GL_WARN_ON_USE (canonicalize_file_name, # endif #endif +/* On native Windows, map 'ecvt' to '_ecvt', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::ecvt on all platforms that have + it. */ #if defined _WIN32 && !defined __CYGWIN__ -# undef ecvt -# define ecvt _ecvt +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef ecvt +# define ecvt _ecvt +# endif +_GL_CXXALIAS_MDA (ecvt, char *, + (double number, int ndigits, int *decptp, int *signp)); +#else +# if @HAVE_DECL_ECVT@ +_GL_CXXALIAS_SYS (ecvt, char *, + (double number, int ndigits, int *decptp, int *signp)); +# endif +#endif +#if (defined _WIN32 && !defined __CYGWIN__) || @HAVE_DECL_ECVT@ +_GL_CXXALIASWARN (ecvt); #endif +/* On native Windows, map 'fcvt' to '_fcvt', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::fcvt on all platforms that have + it. */ #if defined _WIN32 && !defined __CYGWIN__ -# undef fcvt -# define fcvt _fcvt +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef fcvt +# define fcvt _fcvt +# endif +_GL_CXXALIAS_MDA (fcvt, char *, + (double number, int ndigits, int *decptp, int *signp)); +#else +# if @HAVE_DECL_FCVT@ +_GL_CXXALIAS_SYS (fcvt, char *, + (double number, int ndigits, int *decptp, int *signp)); +# endif +#endif +#if (defined _WIN32 && !defined __CYGWIN__) || @HAVE_DECL_FCVT@ +_GL_CXXALIASWARN (fcvt); +#endif + +#if @GNULIB_FREE_POSIX@ +# if @REPLACE_FREE@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef free +# define free rpl_free +# endif +_GL_FUNCDECL_RPL (free, void, (void *ptr)); +_GL_CXXALIAS_RPL (free, void, (void *ptr)); +# else +_GL_CXXALIAS_SYS (free, void, (void *ptr)); +# endif +# if __GLIBC__ >= 2 +_GL_CXXALIASWARN (free); +# endif +#elif defined GNULIB_POSIXCHECK +# undef free +/* Assume free is always declared. */ +_GL_WARN_ON_USE (free, "free is not future POSIX compliant everywhere - " + "use gnulib module free for portability"); #endif +/* On native Windows, map 'gcvt' to '_gcvt', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::gcvt on all platforms that have + it. */ #if defined _WIN32 && !defined __CYGWIN__ -# undef gcvt -# define gcvt _gcvt +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef gcvt +# define gcvt _gcvt +# endif +_GL_CXXALIAS_MDA (gcvt, char *, (double number, int ndigits, char *buf)); +#else +# if @HAVE_DECL_GCVT@ +_GL_CXXALIAS_SYS (gcvt, char *, (double number, int ndigits, char *buf)); +# endif +#endif +#if (defined _WIN32 && !defined __CYGWIN__) || @HAVE_DECL_GCVT@ +_GL_CXXALIASWARN (gcvt); #endif #if @GNULIB_GETLOADAVG@ @@ -483,9 +575,47 @@ _GL_WARN_ON_USE (mkstemps, "mkstemps is unportable - " # endif #endif +/* On native Windows, map 'mktemp' to '_mktemp', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::mktemp always. */ #if defined _WIN32 && !defined __CYGWIN__ -# undef mktemp -# define mktemp _mktemp +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef mktemp +# define mktemp _mktemp +# endif +_GL_CXXALIAS_MDA (mktemp, char *, (char * /*template*/)); +#else +_GL_CXXALIAS_SYS (mktemp, char *, (char * /*template*/)); +#endif +_GL_CXXALIASWARN (mktemp); + +/* Allocate memory with indefinite extent and specified alignment. */ +#if @GNULIB_POSIX_MEMALIGN@ +# if @REPLACE_POSIX_MEMALIGN@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef posix_memalign +# define posix_memalign rpl_posix_memalign +# endif +_GL_FUNCDECL_RPL (posix_memalign, int, + (void **memptr, size_t alignment, size_t size) + _GL_ARG_NONNULL ((1))); +_GL_CXXALIAS_RPL (posix_memalign, int, + (void **memptr, size_t alignment, size_t size)); +# else +# if @HAVE_POSIX_MEMALIGN@ +_GL_CXXALIAS_SYS (posix_memalign, int, + (void **memptr, size_t alignment, size_t size)); +# endif +# endif +# if @HAVE_POSIX_MEMALIGN@ +_GL_CXXALIASWARN (posix_memalign); +# endif +#elif defined GNULIB_POSIXCHECK +# undef posix_memalign +# if HAVE_RAW_DECL_POSIX_MEMALIGN +_GL_WARN_ON_USE (posix_memalign, "posix_memalign is not portable - " + "use gnulib module posix_memalign for portability"); +# endif #endif #if @GNULIB_POSIX_OPENPT@ @@ -576,9 +706,22 @@ _GL_CXXALIAS_MDA (putenv, int, (char *string)); _GL_CXXALIAS_SYS (putenv, int, (char *string)); # endif _GL_CXXALIASWARN (putenv); -#elif defined _WIN32 && !defined __CYGWIN__ -# undef putenv -# define putenv _putenv +#else +/* On native Windows, map 'putenv' to '_putenv', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::putenv always. */ +# if defined _WIN32 && !defined __CYGWIN__ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef putenv +# define putenv _putenv +# endif +/* Need to cast, because on mingw, the parameter is either + 'const char *string' or 'char *string'. */ +_GL_CXXALIAS_MDA_CAST (putenv, int, (char *string)); +# else +_GL_CXXALIAS_SYS (putenv, int, (char *string)); +# endif +_GL_CXXALIASWARN (putenv); #endif #if @GNULIB_QSORT_R@ diff --git a/lib/string.in.h b/lib/string.in.h index 9724addef43..f34bfabfb99 100644 --- a/lib/string.in.h +++ b/lib/string.in.h @@ -123,16 +123,28 @@ _GL_WARN_ON_USE (ffsll, "ffsll is not portable - use the ffsll module"); #endif +/* On native Windows, map 'memccpy' to '_memccpy', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::memccpy always. */ #if defined _WIN32 && !defined __CYGWIN__ -# undef memccpy -# define memccpy _memccpy +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef memccpy +# define memccpy _memccpy +# endif +_GL_CXXALIAS_MDA (memccpy, void *, + (void *dest, const void *src, int c, size_t n)); +#else +_GL_CXXALIAS_SYS (memccpy, void *, + (void *dest, const void *src, int c, size_t n)); #endif +_GL_CXXALIASWARN (memccpy); /* Return the first instance of C within N bytes of S, or NULL. */ #if @GNULIB_MEMCHR@ # if @REPLACE_MEMCHR@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef memchr # define memchr rpl_memchr # endif _GL_FUNCDECL_RPL (memchr, void *, (void const *__s, int __c, size_t __n) @@ -413,9 +425,23 @@ _GL_CXXALIASWARN (strdup); _GL_WARN_ON_USE (strdup, "strdup is unportable - " "use gnulib module strdup for portability"); # endif -#elif defined _WIN32 && !defined __CYGWIN__ -# undef strdup -# define strdup _strdup +#else +/* On native Windows, map 'creat' to '_creat', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::creat always. */ +# if defined _WIN32 && !defined __CYGWIN__ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef strdup +# define strdup _strdup +# endif +_GL_CXXALIAS_MDA (strdup, char *, (char const *__s)); +# else +# if defined __cplusplus && defined GNULIB_NAMESPACE && defined strdup +# undef strdup +# endif +_GL_CXXALIAS_SYS (strdup, char *, (char const *__s)); +# endif +_GL_CXXALIASWARN (strdup); #endif /* Append no more than N characters from SRC onto DEST. */ diff --git a/lib/sys_select.in.h b/lib/sys_select.in.h index 72cb9ba7b0f..ac1e93919b7 100644 --- a/lib/sys_select.in.h +++ b/lib/sys_select.in.h @@ -103,9 +103,16 @@ /* Get definition of 'sigset_t'. But avoid namespace pollution on glibc systems and "unknown type name" problems on Cygwin. + On OS/2 kLIBC, sigset_t is defined in , too. In addition, + if is included, -> -> + are included. Then -> are included by GNULIB. By the + way, requires PAGE_SIZE defined in . However, + has not been processed, yet. As a result, 'PAGE_SIZE' + undeclared error occurs in . Do this after the include_next (for the sake of OpenBSD 5.0) but before the split double-inclusion guard (for the sake of Solaris). */ -#if !((defined __GLIBC__ || defined __CYGWIN__) && !defined __UCLIBC__) +#if !((defined __GLIBC__ || defined __CYGWIN__ || defined __KLIBC__) \ + && !defined __UCLIBC__) # include #endif diff --git a/lib/sys_stat.in.h b/lib/sys_stat.in.h index 3e0e4b27b7e..3ce2a0dcf15 100644 --- a/lib/sys_stat.in.h +++ b/lib/sys_stat.in.h @@ -375,11 +375,11 @@ struct stat # define S_IRWXO (S_IROTH | S_IWOTH | S_IXOTH) #endif -/* S_IXUGO is a common extension to POSIX. */ +/* Although S_IXUGO and S_IRWXUGO are not specified by POSIX and are + not implemented in GNU/Linux, some Gnulib-using apps use the macros. */ #if !S_IXUGO # define S_IXUGO (S_IXUSR | S_IXGRP | S_IXOTH) #endif - #ifndef S_IRWXUGO # define S_IRWXUGO (S_IRWXU | S_IRWXG | S_IRWXO) #endif @@ -391,10 +391,20 @@ struct stat #endif +/* On native Windows, map 'chmod' to '_chmod', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::chmod always. */ #if defined _WIN32 && !defined __CYGWIN__ -# undef chmod -# define chmod _chmod +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef chmod +# define chmod _chmod +# endif +/* Need to cast, because in mingw the last argument is 'int mode'. */ +_GL_CXXALIAS_MDA_CAST (chmod, int, (const char *filename, mode_t mode)); +#else +_GL_CXXALIAS_SYS (chmod, int, (const char *filename, mode_t mode)); #endif +_GL_CXXALIASWARN (chmod); #if @GNULIB_FCHMODAT@ @@ -808,10 +818,20 @@ _GL_WARN_ON_USE (stat, "stat is unportable - " #endif +/* On native Windows, map 'umask' to '_umask', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::umask always. */ #if defined _WIN32 && !defined __CYGWIN__ -# undef umask -# define umask _umask +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef umask +# define umask _umask +# endif +/* Need to cast, because in mingw the last argument is 'int mode'. */ +_GL_CXXALIAS_MDA_CAST (umask, mode_t, (mode_t mask)); +#else +_GL_CXXALIAS_SYS (umask, mode_t, (mode_t mask)); #endif +_GL_CXXALIASWARN (umask); #if @GNULIB_UTIMENSAT@ diff --git a/lib/tempname.c b/lib/tempname.c index cfb0fc42eca..b9f7cc8703d 100644 --- a/lib/tempname.c +++ b/lib/tempname.c @@ -47,9 +47,11 @@ #include #include +#include #include #include #include +#include #if _LIBC # define struct_stat64 struct stat64 @@ -60,27 +62,33 @@ # define __mkdir mkdir # define __open open # define __lxstat64(version, file, buf) lstat (file, buf) +# define __getrandom getrandom +# define __clock_gettime64 clock_gettime +# define __timespec64 timespec #endif -#ifdef _LIBC -# include -# define RANDOM_BITS(Var) ((Var) = random_bits ()) -typedef uint32_t random_value; -# define RANDOM_VALUE_MAX UINT32_MAX -# define BASE_62_DIGITS 5 /* 62**5 < UINT32_MAX */ -# define BASE_62_POWER (62 * 62 * 62 * 62 * 62) /* 2**BASE_62_DIGITS */ -#else /* Use getrandom if it works, falling back on a 64-bit linear - congruential generator that starts with whatever Var's value - happens to be. */ -# define RANDOM_BITS(Var) \ - ((void) (getrandom (&(Var), sizeof (Var), 0) == sizeof (Var) \ - || ((Var) = 2862933555777941757 * (Var) + 3037000493))) + congruential generator that starts with Var's value + mixed in with a clock's low-order bits if available. */ typedef uint_fast64_t random_value; -# define RANDOM_VALUE_MAX UINT_FAST64_MAX -# define BASE_62_DIGITS 10 /* 62**10 < UINT_FAST64_MAX */ -# define BASE_62_POWER (62LL * 62 * 62 * 62 * 62 * 62 * 62 * 62 * 62 * 62) +#define RANDOM_VALUE_MAX UINT_FAST64_MAX +#define BASE_62_DIGITS 10 /* 62**10 < UINT_FAST64_MAX */ +#define BASE_62_POWER (62LL * 62 * 62 * 62 * 62 * 62 * 62 * 62 * 62 * 62) + +static random_value +random_bits (random_value var) +{ + random_value r; + if (__getrandom (&r, sizeof r, 0) == sizeof r) + return r; +#if _LIBC || (defined CLOCK_MONOTONIC && HAVE_CLOCK_GETTIME) + /* Add entropy if getrandom is not supported. */ + struct __timespec64 tv; + __clock_gettime64 (CLOCK_MONOTONIC, &tv); + var ^= tv.tv_nsec; #endif + return 2862933555777941757 * var + 3037000493; +} #if _LIBC /* Return nonzero if DIR is an existent directory. */ @@ -250,8 +258,11 @@ try_tempname_len (char *tmpl, int suffixlen, void *args, unsigned int attempts = ATTEMPTS_MIN; #endif - /* A random variable. */ - random_value v; + /* A random variable. The initial value is used only the for fallback path + on 'random_bits' on 'getrandom' failure. Its initial value tries to use + some entropy from the ASLR and ignore possible bits from the stack + alignment. */ + random_value v = ((uintptr_t) &v) / alignof (max_align_t); /* How many random base-62 digits can currently be extracted from V. */ int vdigits = 0; @@ -279,7 +290,7 @@ try_tempname_len (char *tmpl, int suffixlen, void *args, if (vdigits == 0) { do - RANDOM_BITS (v); + v = random_bits (v); while (unfair_min <= v); vdigits = BASE_62_DIGITS; diff --git a/lib/time.in.h b/lib/time.in.h index 32e6ec03ef4..1b17c156eba 100644 --- a/lib/time.in.h +++ b/lib/time.in.h @@ -145,9 +145,20 @@ _GL_CXXALIAS_MDA (tzset, void, (void)); _GL_CXXALIAS_SYS (tzset, void, (void)); # endif _GL_CXXALIASWARN (tzset); -# elif defined _WIN32 && !defined __CYGWIN__ -# undef tzset -# define tzset _tzset +# else +/* On native Windows, map 'tzset' to '_tzset', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::tzset always. */ +# if defined _WIN32 && !defined __CYGWIN__ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef tzset +# define tzset _tzset +# endif +_GL_CXXALIAS_MDA (tzset, void, (void)); +# else +_GL_CXXALIAS_SYS (tzset, void, (void)); +# endif +_GL_CXXALIASWARN (tzset); # endif /* Return the 'time_t' representation of TP and normalize TP. */ @@ -356,17 +367,17 @@ _GL_WARN_ON_USE (asctime, "asctime can overrun buffers in some cases - " # endif # if defined GNULIB_POSIXCHECK # undef asctime_r -_GL_WARN_ON_USE (asctime, "asctime_r can overrun buffers in some cases - " +_GL_WARN_ON_USE (asctime_r, "asctime_r can overrun buffers in some cases - " "better use strftime (or even sprintf) instead"); # endif # if defined GNULIB_POSIXCHECK # undef ctime -_GL_WARN_ON_USE (asctime, "ctime can overrun buffers in some cases - " +_GL_WARN_ON_USE (ctime, "ctime can overrun buffers in some cases - " "better use strftime (or even sprintf) instead"); # endif # if defined GNULIB_POSIXCHECK # undef ctime_r -_GL_WARN_ON_USE (asctime, "ctime_r can overrun buffers in some cases - " +_GL_WARN_ON_USE (ctime_r, "ctime_r can overrun buffers in some cases - " "better use strftime (or even sprintf) instead"); # endif diff --git a/lib/time_rz.c b/lib/time_rz.c index 95438cf876e..8992c2e37e0 100644 --- a/lib/time_rz.c +++ b/lib/time_rz.c @@ -27,19 +27,15 @@ #include #include -#include #include #include #include #include #include "flexmember.h" +#include "idx.h" #include "time-internal.h" -#ifndef SIZE_MAX -# define SIZE_MAX ((size_t) -1) -#endif - /* The approximate size to use for small allocation requests. This is the largest "small" request for the GNU C library malloc. */ enum { DEFAULT_MXFAST = 64 * sizeof (size_t) / 4 }; @@ -125,14 +121,8 @@ save_abbr (timezone_t tz, struct tm *tm) { if (! (*zone_copy || (zone_copy == tz->abbrs && tz->tz_is_set))) { - size_t zone_size = strlen (zone) + 1; - size_t zone_used = zone_copy - tz->abbrs; - if (SIZE_MAX - zone_used < zone_size) - { - errno = ENOMEM; - return false; - } - if (zone_used + zone_size < ABBR_SIZE_MIN) + idx_t zone_size = strlen (zone) + 1; + if (zone_size < tz->abbrs + ABBR_SIZE_MIN - zone_copy) extend_abbrs (zone_copy, zone, zone_size); else { diff --git a/lib/unistd.in.h b/lib/unistd.in.h index 357a35e3881..4033ffeef72 100644 --- a/lib/unistd.in.h +++ b/lib/unistd.in.h @@ -93,20 +93,18 @@ # undef __need_system_stdlib_h #endif -/* Native Windows platforms declare chdir, getcwd, rmdir in +/* Native Windows platforms declare _chdir, _getcwd, _rmdir in and/or , not in . - They also declare access(), chmod(), close(), dup(), dup2(), isatty(), - lseek(), read(), unlink(), write() in . */ -#if ((@GNULIB_CHDIR@ || @GNULIB_GETCWD@ || @GNULIB_RMDIR@ \ - || defined GNULIB_POSIXCHECK) \ - && (defined _WIN32 && ! defined __CYGWIN__)) -# include /* mingw32, mingw64 */ -# include /* mingw64, MSVC 9 */ -#elif (@GNULIB_CLOSE@ || @GNULIB_DUP@ || @GNULIB_DUP2@ || @GNULIB_ISATTY@ \ - || @GNULIB_LSEEK@ || @GNULIB_READ@ || @GNULIB_UNLINK@ || @GNULIB_WRITE@ \ - || defined GNULIB_POSIXCHECK) \ - && (defined _WIN32 && ! defined __CYGWIN__) + They also declare _access(), _chmod(), _close(), _dup(), _dup2(), _isatty(), + _lseek(), _read(), _unlink(), _write() in . */ +#if defined _WIN32 && !defined __CYGWIN__ # include +# include +#endif + +/* Native Windows platforms declare _execl*, _execv* in . */ +#if defined _WIN32 && !defined __CYGWIN__ +# include #endif /* AIX and OSF/1 5.1 declare getdomainname in , not in . @@ -138,11 +136,8 @@ /* MSVC defines off_t in . May also define off_t to a 64-bit type on native Windows. */ -/* But avoid namespace pollution on glibc systems. */ -#ifndef __GLIBC__ -/* Get off_t, ssize_t. */ -# include -#endif +/* Get off_t, ssize_t, mode_t. */ +#include /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ @@ -292,9 +287,20 @@ _GL_WARN_ON_USE (access, "access does not always support X_OK - " "also, this function is a security risk - " "use the gnulib module faccessat instead"); # endif -#elif defined _WIN32 && !defined __CYGWIN__ -# undef access -# define access _access +#else +/* On native Windows, map 'access' to '_access', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::access always. */ +# if defined _WIN32 && !defined __CYGWIN__ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef access +# define access _access +# endif +_GL_CXXALIAS_MDA (access, int, (const char *file, int mode)); +# else +_GL_CXXALIAS_SYS (access, int, (const char *file, int mode)); +# endif +_GL_CXXALIASWARN (access); #endif @@ -315,9 +321,20 @@ _GL_CXXALIASWARN (chdir); _GL_WARN_ON_USE (chown, "chdir is not always in - " "use gnulib module chdir for portability"); # endif -#elif defined _WIN32 && !defined __CYGWIN__ -# undef chdir -# define chdir _chdir +#else +/* On native Windows, map 'chdir' to '_chdir', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::chdir always. */ +# if defined _WIN32 && !defined __CYGWIN__ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef chdir +# define chdir _chdir +# endif +_GL_CXXALIAS_MDA (chdir, int, (const char *file)); +# else +_GL_CXXALIAS_SYS (chdir, int, (const char *file) _GL_ARG_NONNULL ((1))); +# endif +_GL_CXXALIASWARN (chdir); #endif @@ -380,9 +397,20 @@ _GL_CXXALIASWARN (close); /* Assume close is always declared. */ _GL_WARN_ON_USE (close, "close does not portably work on sockets - " "use gnulib module close for portability"); -#elif defined _WIN32 && !defined __CYGWIN__ -# undef close -# define close _close +#else +/* On native Windows, map 'close' to '_close', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::close always. */ +# if defined _WIN32 && !defined __CYGWIN__ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef close +# define close _close +# endif +_GL_CXXALIAS_MDA (close, int, (int fd)); +# else +_GL_CXXALIAS_SYS (close, int, (int fd)); +# endif +_GL_CXXALIASWARN (close); #endif @@ -397,10 +425,11 @@ _GL_CXXALIAS_SYS (copy_file_range, ssize_t, (int ifd, off_t *ipos, # endif _GL_CXXALIASWARN (copy_file_range); #elif defined GNULIB_POSIXCHECK -/* Assume copy_file_range is always declared. */ +# if HAVE_RAW_DECL_COPY_FILE_RANGE _GL_WARN_ON_USE (copy_file_range, "copy_file_range is unportable - " "use gnulib module copy_file_range for portability"); +# endif #endif @@ -427,9 +456,20 @@ _GL_CXXALIASWARN (dup); _GL_WARN_ON_USE (dup, "dup is unportable - " "use gnulib module dup for portability"); # endif -#elif defined _WIN32 && !defined __CYGWIN__ -# undef dup -# define dup _dup +#else +/* On native Windows, map 'dup' to '_dup', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::dup always. */ +# if defined _WIN32 && !defined __CYGWIN__ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef dup +# define dup _dup +# endif +_GL_CXXALIAS_MDA (dup, int, (int oldfd)); +# else +_GL_CXXALIAS_SYS (dup, int, (int oldfd)); +# endif +_GL_CXXALIASWARN (dup); #endif @@ -461,9 +501,20 @@ _GL_CXXALIASWARN (dup2); _GL_WARN_ON_USE (dup2, "dup2 is unportable - " "use gnulib module dup2 for portability"); # endif -#elif defined _WIN32 && !defined __CYGWIN__ -# undef dup2 -# define dup2 _dup2 +#else +/* On native Windows, map 'dup2' to '_dup2', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::dup2 always. */ +# if defined _WIN32 && !defined __CYGWIN__ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef dup2 +# define dup2 _dup2 +# endif +_GL_CXXALIAS_MDA (dup2, int, (int oldfd, int newfd)); +# else +_GL_CXXALIAS_SYS (dup2, int, (int oldfd, int newfd)); +# endif +_GL_CXXALIASWARN (dup2); #endif @@ -564,40 +615,116 @@ _GL_WARN_ON_USE (euidaccess, "euidaccess is unportable - " #endif +/* On native Windows, map 'execl' to '_execl', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::execl always. */ #if defined _WIN32 && !defined __CYGWIN__ -# undef execl -# define execl _execl +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef execl +# define execl _execl +# endif +_GL_CXXALIAS_MDA (execl, intptr_t, (const char *program, const char *arg, ...)); +#else +_GL_CXXALIAS_SYS (execl, int, (const char *program, const char *arg, ...)); #endif +_GL_CXXALIASWARN (execl); +/* On native Windows, map 'execle' to '_execle', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::execle always. */ #if defined _WIN32 && !defined __CYGWIN__ -# undef execle -# define execle _execle +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef execle +# define execle _execle +# endif +_GL_CXXALIAS_MDA (execle, intptr_t, (const char *program, const char *arg, ...)); +#else +_GL_CXXALIAS_SYS (execle, int, (const char *program, const char *arg, ...)); #endif +_GL_CXXALIASWARN (execle); +/* On native Windows, map 'execlp' to '_execlp', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::execlp always. */ #if defined _WIN32 && !defined __CYGWIN__ -# undef execlp -# define execlp _execlp +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef execlp +# define execlp _execlp +# endif +_GL_CXXALIAS_MDA (execlp, intptr_t, (const char *program, const char *arg, ...)); +#else +_GL_CXXALIAS_SYS (execlp, int, (const char *program, const char *arg, ...)); #endif +_GL_CXXALIASWARN (execlp); +/* On native Windows, map 'execv' to '_execv', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::execv always. */ #if defined _WIN32 && !defined __CYGWIN__ -# undef execv -# define execv _execv +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef execv +# define execv _execv +# endif +_GL_CXXALIAS_MDA (execv, intptr_t, + (const char *program, const char * const *argv)); +#else +_GL_CXXALIAS_SYS (execv, int, (const char *program, char * const *argv)); #endif +_GL_CXXALIASWARN (execv); +/* On native Windows, map 'execve' to '_execve', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::execve always. */ #if defined _WIN32 && !defined __CYGWIN__ -# undef execve -# define execve _execve +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef execve +# define execve _execve +# endif +_GL_CXXALIAS_MDA (execve, intptr_t, + (const char *program, const char * const *argv, + const char * const *env)); +#else +_GL_CXXALIAS_SYS (execve, int, + (const char *program, char * const *argv, char * const *env)); #endif +_GL_CXXALIASWARN (execve); +/* On native Windows, map 'execvp' to '_execvp', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::execvp always. */ #if defined _WIN32 && !defined __CYGWIN__ -# undef execvp -# define execvp _execvp +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef execvp +# define execvp _execvp +# endif +_GL_CXXALIAS_MDA (execvp, intptr_t, + (const char *program, const char * const *argv)); +#else +_GL_CXXALIAS_SYS (execvp, int, (const char *program, char * const *argv)); #endif +_GL_CXXALIASWARN (execvp); +/* On native Windows, map 'execvpe' to '_execvpe', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::execvpe on all platforms that have + it. */ #if defined _WIN32 && !defined __CYGWIN__ -# undef execvpe -# define execvpe _execvpe +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef execvpe +# define execvpe _execvpe +# endif +_GL_CXXALIAS_MDA (execvpe, intptr_t, + (const char *program, const char * const *argv, + const char * const *env)); +#else +# if @HAVE_DECL_EXECVPE@ +_GL_CXXALIAS_SYS (execvpe, int, + (const char *program, char * const *argv, char * const *env)); +# endif +#endif +#if (defined _WIN32 && !defined __CYGWIN__) || @HAVE_DECL_EXECVPE@ +_GL_CXXALIASWARN (execvpe); #endif @@ -794,9 +921,22 @@ _GL_CXXALIASWARN (getcwd); _GL_WARN_ON_USE (getcwd, "getcwd is unportable - " "use gnulib module getcwd for portability"); # endif -#elif defined _WIN32 && !defined __CYGWIN__ -# undef getcwd -# define getcwd _getcwd +#else +/* On native Windows, map 'getcwd' to '_getcwd', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::getcwd always. */ +# if defined _WIN32 && !defined __CYGWIN__ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef getcwd +# define getcwd _getcwd +# endif +/* Need to cast, because on mingw, the second parameter is either + 'int size' or 'size_t size'. */ +_GL_CXXALIAS_MDA_CAST (getcwd, char *, (char *buf, size_t size)); +# else +_GL_CXXALIAS_SYS_CAST (getcwd, char *, (char *buf, size_t size)); +# endif +_GL_CXXALIASWARN (getcwd); #endif @@ -1131,10 +1271,19 @@ _GL_WARN_ON_USE (getpass, "getpass is unportable - " #endif +/* On native Windows, map 'getpid' to '_getpid', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::getpid always. */ #if defined _WIN32 && !defined __CYGWIN__ -# undef getpid -# define getpid _getpid +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef getpid +# define getpid _getpid +# endif +_GL_CXXALIAS_MDA (getpid, int, (void)); +#else +_GL_CXXALIAS_SYS (getpid, pid_t, (void)); #endif +_GL_CXXALIASWARN (getpid); #if @GNULIB_GETUSERSHELL@ @@ -1225,9 +1374,20 @@ _GL_CXXALIASWARN (isatty); _GL_WARN_ON_USE (isatty, "isatty has portability problems on native Windows - " "use gnulib module isatty for portability"); # endif -#elif defined _WIN32 && !defined __CYGWIN__ -# undef isatty -# define isatty _isatty +#else +/* On native Windows, map 'isatty' to '_isatty', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::isatty always. */ +# if defined _WIN32 && !defined __CYGWIN__ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef isatty +# define isatty _isatty +# endif +_GL_CXXALIAS_MDA (isatty, int, (int fd)); +# else +_GL_CXXALIAS_SYS (isatty, int, (int fd)); +# endif +_GL_CXXALIASWARN (isatty); #endif @@ -1355,9 +1515,20 @@ _GL_CXXALIASWARN (lseek); _GL_WARN_ON_USE (lseek, "lseek does not fail with ESPIPE on pipes on some " "systems - use gnulib module lseek for portability"); # endif -#elif defined _WIN32 && !defined __CYGWIN__ -# undef lseek -# define lseek _lseek +#else +/* On native Windows, map 'lseek' to '_lseek', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::lseek always. */ +# if defined _WIN32 && !defined __CYGWIN__ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef lseek +# define lseek _lseek +# endif +_GL_CXXALIAS_MDA (lseek, long, (int fd, long offset, int whence)); +# else +_GL_CXXALIAS_SYS (lseek, off_t, (int fd, off_t offset, int whence)); +# endif +_GL_CXXALIASWARN (lseek); #endif @@ -1497,15 +1668,27 @@ _GL_CXXALIAS_RPL (read, ssize_t, (int fd, void *buf, size_t count)); # endif _GL_CXXALIAS_MDA (read, ssize_t, (int fd, void *buf, size_t count)); # else -/* Need to cast, because on mingw, the third parameter is - unsigned int count - and the return type is 'int'. */ -_GL_CXXALIAS_SYS_CAST (read, ssize_t, (int fd, void *buf, size_t count)); +_GL_CXXALIAS_SYS (read, ssize_t, (int fd, void *buf, size_t count)); +# endif +_GL_CXXALIASWARN (read); +#else +/* On native Windows, map 'read' to '_read', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::read always. */ +# if defined _WIN32 && !defined __CYGWIN__ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef read +# define read _read +# endif +# ifdef __MINGW32__ +_GL_CXXALIAS_MDA (read, int, (int fd, void *buf, unsigned int count)); +# else +_GL_CXXALIAS_MDA (read, ssize_t, (int fd, void *buf, unsigned int count)); +# endif +# else +_GL_CXXALIAS_SYS (read, ssize_t, (int fd, void *buf, size_t count)); # endif _GL_CXXALIASWARN (read); -#elif defined _WIN32 && !defined __CYGWIN__ -# undef read -# define read _read #endif @@ -1604,9 +1787,20 @@ _GL_CXXALIASWARN (rmdir); _GL_WARN_ON_USE (rmdir, "rmdir is unportable - " "use gnulib module rmdir for portability"); # endif -#elif defined _WIN32 && !defined __CYGWIN__ -# undef rmdir -# define rmdir _rmdir +#else +/* On native Windows, map 'rmdir' to '_rmdir', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::rmdir always. */ +# if defined _WIN32 && !defined __CYGWIN__ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef rmdir +# define rmdir _rmdir +# endif +_GL_CXXALIAS_MDA (rmdir, int, (char const *name)); +# else +_GL_CXXALIAS_SYS (rmdir, int, (char const *name)); +# endif +_GL_CXXALIASWARN (rmdir); #endif @@ -1665,10 +1859,19 @@ _GL_WARN_ON_USE (sleep, "sleep is unportable - " #endif +/* On native Windows, map 'swab' to '_swab', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::creat always. */ #if defined _WIN32 && !defined __CYGWIN__ -# undef swab -# define swab _swab +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef swab +# define swab _swab +# endif +_GL_CXXALIAS_MDA (swab, void, (char *from, char *to, int n)); +#else +_GL_CXXALIAS_SYS (swab, void, (const void *from, void *to, ssize_t n)); #endif +_GL_CXXALIASWARN (swab); #if @GNULIB_SYMLINK@ @@ -1811,9 +2014,20 @@ _GL_CXXALIASWARN (unlink); _GL_WARN_ON_USE (unlink, "unlink is not portable - " "use gnulib module unlink for portability"); # endif -#elif defined _WIN32 && !defined __CYGWIN__ -# undef unlink -# define unlink _unlink +#else +/* On native Windows, map 'unlink' to '_unlink', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::unlink always. */ +# if defined _WIN32 && !defined __CYGWIN__ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef unlink +# define unlink _unlink +# endif +_GL_CXXALIAS_MDA (unlink, int, (char const *file)); +# else +_GL_CXXALIAS_SYS (unlink, int, (char const *file)); +# endif +_GL_CXXALIASWARN (unlink); #endif @@ -1892,15 +2106,27 @@ _GL_CXXALIAS_RPL (write, ssize_t, (int fd, const void *buf, size_t count)); # endif _GL_CXXALIAS_MDA (write, ssize_t, (int fd, const void *buf, size_t count)); # else -/* Need to cast, because on mingw, the third parameter is - unsigned int count - and the return type is 'int'. */ -_GL_CXXALIAS_SYS_CAST (write, ssize_t, (int fd, const void *buf, size_t count)); +_GL_CXXALIAS_SYS (write, ssize_t, (int fd, const void *buf, size_t count)); +# endif +_GL_CXXALIASWARN (write); +#else +/* On native Windows, map 'write' to '_write', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::write always. */ +# if defined _WIN32 && !defined __CYGWIN__ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef write +# define write _write +# endif +# ifdef __MINGW32__ +_GL_CXXALIAS_MDA (write, int, (int fd, const void *buf, unsigned int count)); +# else +_GL_CXXALIAS_MDA (write, ssize_t, (int fd, const void *buf, unsigned int count)); +# endif +# else +_GL_CXXALIAS_SYS (write, ssize_t, (int fd, const void *buf, size_t count)); # endif _GL_CXXALIASWARN (write); -#elif defined _WIN32 && !defined __CYGWIN__ -# undef write -# define write _write #endif _GL_INLINE_HEADER_END diff --git a/lib/xalloc-oversized.h b/lib/xalloc-oversized.h index 13ee23031a0..7cd4a74f04d 100644 --- a/lib/xalloc-oversized.h +++ b/lib/xalloc-oversized.h @@ -41,7 +41,7 @@ typedef size_t __xalloc_count_type; positive and N must be nonnegative. This is a macro, not a function, so that it works correctly even when SIZE_MAX < N. */ -#if 7 <= __GNUC__ +#if 7 <= __GNUC__ && !defined __clang__ # define xalloc_oversized(n, s) \ __builtin_mul_overflow_p (n, s, (__xalloc_count_type) 1) #elif 5 <= __GNUC__ && !defined __ICC && !__STRICT_ANSI__ diff --git a/m4/alloca.m4 b/m4/alloca.m4 index d8414896308..e3c377c9e2c 100644 --- a/m4/alloca.m4 +++ b/m4/alloca.m4 @@ -1,4 +1,4 @@ -# alloca.m4 serial 18 +# alloca.m4 serial 20 dnl Copyright (C) 2002-2004, 2006-2007, 2009-2020 Free Software Foundation, dnl Inc. dnl This file is free software; the Free Software Foundation @@ -104,5 +104,5 @@ AH_VERBATIM([STACK_DIRECTION], STACK_DIRECTION = 0 => direction of growth unknown */ #undef STACK_DIRECTION])dnl AC_DEFINE_UNQUOTED(STACK_DIRECTION, $ac_cv_c_stack_direction) -]) +])# _AC_LIBOBJ_ALLOCA ]) diff --git a/m4/extensions.m4 b/m4/extensions.m4 index d7c95effdac..44be1d15cbf 100644 --- a/m4/extensions.m4 +++ b/m4/extensions.m4 @@ -1,4 +1,4 @@ -# serial 18 -*- Autoconf -*- +# serial 21 -*- Autoconf -*- # Enable extensions on systems that normally disable them. # Copyright (C) 2003, 2006-2020 Free Software Foundation, Inc. @@ -6,9 +6,14 @@ # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. +dnl Define to empty for the benefit of Autoconf 2.69 and earlier, so that +dnl AC_USE_SYSTEM_EXTENSIONS (below) can be used unchanged from Autoconf 2.70+. +m4_ifndef([AC_CHECK_INCLUDES_DEFAULT], + [AC_DEFUN([AC_CHECK_INCLUDES_DEFAULT], [])]) + # This definition of AC_USE_SYSTEM_EXTENSIONS is stolen from git # Autoconf. Perhaps we can remove this once we can assume Autoconf -# 2.70 or later everywhere, but since Autoconf mutates rapidly +# is recent-enough everywhere, but since Autoconf mutates rapidly # enough in this area it's likely we'll need to redefine # AC_USE_SYSTEM_EXTENSIONS for quite some time. @@ -26,36 +31,27 @@ # its dependencies. This will ensure that the gl_USE_SYSTEM_EXTENSIONS # invocation occurs in gl_EARLY, not in gl_INIT. +m4_version_prereq([2.70.1], [], [ + # AC_USE_SYSTEM_EXTENSIONS # ------------------------ # Enable extensions on systems that normally disable them, # typically due to standards-conformance issues. -# -# Remember that #undef in AH_VERBATIM gets replaced with #define by -# AC_DEFINE. The goal here is to define all known feature-enabling -# macros, then, if reports of conflicts are made, disable macros that -# cause problems on some platforms (such as __EXTENSIONS__). +# We unconditionally define as many of the known feature-enabling +# as possible, reserving conditional behavior for macros that are +# known to cause problems on some platforms (such as __EXTENSIONS__). AC_DEFUN_ONCE([AC_USE_SYSTEM_EXTENSIONS], -[AC_BEFORE([$0], [AC_COMPILE_IFELSE])dnl +[AC_BEFORE([$0], [AC_PREPROC_IFELSE])dnl +AC_BEFORE([$0], [AC_COMPILE_IFELSE])dnl +AC_BEFORE([$0], [AC_LINK_IFELSE])dnl AC_BEFORE([$0], [AC_RUN_IFELSE])dnl - - AC_CHECK_HEADER([minix/config.h], [MINIX=yes], [MINIX=]) - if test "$MINIX" = yes; then - AC_DEFINE([_POSIX_SOURCE], [1], - [Define to 1 if you need to in order for 'stat' and other - things to work.]) - AC_DEFINE([_POSIX_1_SOURCE], [2], - [Define to 2 if the system does not provide POSIX.1 features - except with this defined.]) - AC_DEFINE([_MINIX], [1], - [Define to 1 if on MINIX.]) - AC_DEFINE([_NETBSD_SOURCE], [1], - [Define to 1 to make NetBSD features available. MINIX 3 needs this.]) - fi - +AC_BEFORE([$0], [AC_CHECK_INCLUDES_DEFAULT])dnl +dnl #undef in AH_VERBATIM gets replaced with #define by AC_DEFINE. dnl Use a different key than __EXTENSIONS__, as that name broke existing dnl configure.ac when using autoheader 2.62. - AH_VERBATIM([USE_SYSTEM_EXTENSIONS], +dnl The macros below are in alphabetical order ignoring leading _ or __ +dnl prefixes. +AH_VERBATIM([USE_SYSTEM_EXTENSIONS], [/* Enable extensions on AIX 3, Interix. */ #ifndef _ALL_SOURCE # undef _ALL_SOURCE @@ -64,19 +60,44 @@ dnl configure.ac when using autoheader 2.62. #ifndef _DARWIN_C_SOURCE # undef _DARWIN_C_SOURCE #endif +/* Enable general extensions on Solaris. */ +#ifndef __EXTENSIONS__ +# undef __EXTENSIONS__ +#endif /* Enable GNU extensions on systems that have them. */ #ifndef _GNU_SOURCE # undef _GNU_SOURCE #endif -/* Enable NetBSD extensions on NetBSD. */ +/* Enable X/Open compliant socket functions that do not require linking + with -lxnet on HP-UX 11.11. */ +#ifndef _HPUX_ALT_XOPEN_SOCKET_API +# undef _HPUX_ALT_XOPEN_SOCKET_API +#endif +/* Identify the host operating system as Minix. + This macro does not affect the system headers' behavior. + A future release of Autoconf may stop defining this macro. */ +#ifndef _MINIX +# undef _MINIX +#endif +/* Enable general extensions on NetBSD. + Enable NetBSD compatibility extensions on Minix. */ #ifndef _NETBSD_SOURCE # undef _NETBSD_SOURCE #endif -/* Enable OpenBSD extensions on NetBSD. */ +/* Enable OpenBSD compatibility extensions on NetBSD. + Oddly enough, this does nothing on OpenBSD. */ #ifndef _OPENBSD_SOURCE # undef _OPENBSD_SOURCE #endif -/* Enable threading extensions on Solaris. */ +/* Define to 1 if needed for POSIX-compatible behavior. */ +#ifndef _POSIX_SOURCE +# undef _POSIX_SOURCE +#endif +/* Define to 2 if needed for POSIX-compatible behavior. */ +#ifndef _POSIX_1_SOURCE +# undef _POSIX_1_SOURCE +#endif +/* Enable POSIX-compatible threading on Solaris. */ #ifndef _POSIX_PTHREAD_SEMANTICS # undef _POSIX_PTHREAD_SEMANTICS #endif @@ -112,22 +133,19 @@ dnl configure.ac when using autoheader 2.62. #ifndef _TANDEM_SOURCE # undef _TANDEM_SOURCE #endif -/* Enable X/Open extensions if necessary. HP-UX 11.11 defines - mbstate_t only if _XOPEN_SOURCE is defined to 500, regardless of - whether compiling with -Ae or -D_HPUX_SOURCE=1. */ +/* Enable X/Open extensions. Define to 500 only if necessary + to make mbstate_t available. */ #ifndef _XOPEN_SOURCE # undef _XOPEN_SOURCE #endif -/* Enable X/Open compliant socket functions that do not require linking - with -lxnet on HP-UX 11.11. */ -#ifndef _HPUX_ALT_XOPEN_SOCKET_API -# undef _HPUX_ALT_XOPEN_SOCKET_API -#endif -/* Enable general extensions on Solaris. */ -#ifndef __EXTENSIONS__ -# undef __EXTENSIONS__ -#endif -]) +])dnl + + AC_REQUIRE([AC_CHECK_INCLUDES_DEFAULT])dnl + _AC_CHECK_HEADER_ONCE([wchar.h]) + _AC_CHECK_HEADER_ONCE([minix/config.h]) + +dnl Defining __EXTENSIONS__ may break the system headers on some systems. +dnl (FIXME: Which ones?) AC_CACHE_CHECK([whether it is safe to define __EXTENSIONS__], [ac_cv_safe_to_define___extensions__], [AC_COMPILE_IFELSE( @@ -136,11 +154,33 @@ dnl configure.ac when using autoheader 2.62. ]AC_INCLUDES_DEFAULT])], [ac_cv_safe_to_define___extensions__=yes], [ac_cv_safe_to_define___extensions__=no])]) - test $ac_cv_safe_to_define___extensions__ = yes && - AC_DEFINE([__EXTENSIONS__]) + +dnl HP-UX 11.11 defines mbstate_t only if _XOPEN_SOURCE is defined to +dnl 500, regardless of whether compiling with -Ae or -D_HPUX_SOURCE=1. +dnl But defining _XOPEN_SOURCE may turn *off* extensions on platforms +dnl not covered by turn-on-extensions macros (notably Dragonfly, Free, +dnl and OpenBSD, which don't have any equivalent of _NETBSD_SOURCE) so +dnl it should only be defined when necessary. + AC_CACHE_CHECK([whether _XOPEN_SOURCE should be defined], + [ac_cv_should_define__xopen_source], + [ac_cv_should_define__xopen_source=no + AS_IF([test $ac_cv_header_wchar_h = yes], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[ + #include + mbstate_t x;]])], + [], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[ + #define _XOPEN_SOURCE 500 + #include + mbstate_t x;]])], + [ac_cv_should_define__xopen_source=yes])])])]) + AC_DEFINE([_ALL_SOURCE]) AC_DEFINE([_DARWIN_C_SOURCE]) AC_DEFINE([_GNU_SOURCE]) + AC_DEFINE([_HPUX_ALT_XOPEN_SOCKET_API]) AC_DEFINE([_NETBSD_SOURCE]) AC_DEFINE([_OPENBSD_SOURCE]) AC_DEFINE([_POSIX_PTHREAD_SEMANTICS]) @@ -152,24 +192,18 @@ dnl configure.ac when using autoheader 2.62. AC_DEFINE([__STDC_WANT_LIB_EXT2__]) AC_DEFINE([__STDC_WANT_MATH_SPEC_FUNCS__]) AC_DEFINE([_TANDEM_SOURCE]) - AC_CACHE_CHECK([whether _XOPEN_SOURCE should be defined], - [ac_cv_should_define__xopen_source], - [ac_cv_should_define__xopen_source=no - AC_COMPILE_IFELSE( - [AC_LANG_PROGRAM([[ - #include - mbstate_t x;]])], - [], - [AC_COMPILE_IFELSE( - [AC_LANG_PROGRAM([[ - #define _XOPEN_SOURCE 500 - #include - mbstate_t x;]])], - [ac_cv_should_define__xopen_source=yes])])]) - test $ac_cv_should_define__xopen_source = yes && - AC_DEFINE([_XOPEN_SOURCE], [500]) - AC_DEFINE([_HPUX_ALT_XOPEN_SOCKET_API]) + AS_IF([test $ac_cv_header_minix_config_h = yes], + [MINIX=yes + AC_DEFINE([_MINIX]) + AC_DEFINE([_POSIX_SOURCE]) + AC_DEFINE([_POSIX_1_SOURCE], [2])], + [MINIX=]) + AS_IF([test $ac_cv_safe_to_define___extensions__ = yes], + [AC_DEFINE([__EXTENSIONS__])]) + AS_IF([test $ac_cv_should_define__xopen_source = yes], + [AC_DEFINE([_XOPEN_SOURCE], [500])]) ])# AC_USE_SYSTEM_EXTENSIONS +]) # gl_USE_SYSTEM_EXTENSIONS # ------------------------ @@ -177,13 +211,5 @@ dnl configure.ac when using autoheader 2.62. # typically due to standards-conformance issues. AC_DEFUN_ONCE([gl_USE_SYSTEM_EXTENSIONS], [ - dnl Require this macro before AC_USE_SYSTEM_EXTENSIONS. - dnl gnulib does not need it. But if it gets required by third-party macros - dnl after AC_USE_SYSTEM_EXTENSIONS is required, autoconf 2.62..2.63 emit a - dnl warning: "AC_COMPILE_IFELSE was called before AC_USE_SYSTEM_EXTENSIONS". - dnl Note: We can do this only for one of the macros AC_AIX, AC_GNU_SOURCE, - dnl AC_MINIX. If people still use AC_AIX or AC_MINIX, they are out of luck. - AC_REQUIRE([AC_GNU_SOURCE]) - AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) ]) diff --git a/m4/fcntl.m4 b/m4/fcntl.m4 index ea24f3d64ef..547ff40b804 100644 --- a/m4/fcntl.m4 +++ b/m4/fcntl.m4 @@ -1,4 +1,4 @@ -# fcntl.m4 serial 10 +# fcntl.m4 serial 11 dnl Copyright (C) 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -81,15 +81,29 @@ AC_DEFUN([gl_FUNC_FCNTL], behavior does not match POSIX]) ;; esac - dnl Many systems lack F_DUPFD_CLOEXEC + dnl Many systems lack F_DUPFD_CLOEXEC. + dnl NetBSD 9.0 declares F_DUPFD_CLOEXEC but it works only like F_DUPFD. AC_CACHE_CHECK([whether fcntl understands F_DUPFD_CLOEXEC], [gl_cv_func_fcntl_f_dupfd_cloexec], - [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ -#include -#ifndef F_DUPFD_CLOEXEC -choke me -#endif - ]])], + [AC_RUN_IFELSE( + [AC_LANG_SOURCE( + [[#include + #include + int main (int argc, char *argv[]) + { + if (argc == 1) + /* parent process */ + { + if (fcntl (1, F_DUPFD_CLOEXEC, 10) < 0) + return 1; + return execl ("./conftest", "./conftest", "child", NULL); + } + else + /* child process */ + return (fcntl (10, F_GETFL) < 0 ? 0 : 42); + } + ]]) + ], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ #ifdef __linux__ /* The Linux kernel only added F_DUPFD_CLOEXEC in 2.6.24, so we always replace @@ -98,12 +112,22 @@ choke me #endif ]])], [gl_cv_func_fcntl_f_dupfd_cloexec=yes], - [gl_cv_func_fcntl_f_dupfd_cloexec="needs runtime check"])], - [gl_cv_func_fcntl_f_dupfd_cloexec=no])]) - if test "$gl_cv_func_fcntl_f_dupfd_cloexec" != yes; then - gl_REPLACE_FCNTL - dnl No witness macro needed for this bug. - fi + [gl_cv_func_fcntl_f_dupfd_cloexec="needs runtime check"]) + ], + [gl_cv_func_fcntl_f_dupfd_cloexec=no], + [case "$host_os" in + # Guess no on NetBSD. + netbsd*) gl_cv_func_fcntl_f_dupfd_cloexec="guessing no" ;; + *) gl_cv_func_fcntl_f_dupfd_cloexec="$gl_cross_guess_normal" ;; + esac + ]) + ]) + case "$gl_cv_func_fcntl_f_dupfd_cloexec" in + *yes) ;; + *) gl_REPLACE_FCNTL + dnl No witness macro needed for this bug. + ;; + esac fi dnl Replace fcntl() for supporting the gnulib-defined fchdir() function, dnl to keep fchdir's bookkeeping up-to-date. diff --git a/m4/filemode.m4 b/m4/filemode.m4 index 5aaaa1a167d..8bbfcdbafe0 100644 --- a/m4/filemode.m4 +++ b/m4/filemode.m4 @@ -1,4 +1,4 @@ -# filemode.m4 serial 8 +# filemode.m4 serial 9 dnl Copyright (C) 2002, 2005-2006, 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -6,6 +6,5 @@ dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FILEMODE], [ - AC_REQUIRE([AC_STRUCT_ST_DM_MODE]) AC_CHECK_DECLS_ONCE([strmode]) ]) diff --git a/m4/free.m4 b/m4/free.m4 new file mode 100644 index 00000000000..bf9fc31d9b4 --- /dev/null +++ b/m4/free.m4 @@ -0,0 +1,49 @@ +# free.m4 serial 5 +# Copyright (C) 2003-2005, 2009-2020 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# Written by Paul Eggert and Bruno Haible. + +AC_DEFUN([gl_FUNC_FREE], +[ + AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) + + dnl In the next release of POSIX, free must preserve errno. + dnl https://www.austingroupbugs.net/view.php?id=385 + dnl https://sourceware.org/bugzilla/show_bug.cgi?id=17924 + dnl So far, we know of three platforms that do this: + dnl * glibc >= 2.33, thanks to the fix for this bug: + dnl + dnl * OpenBSD >= 4.5, thanks to this commit: + dnl + dnl * Solaris, because its malloc() implementation is based on brk(), + dnl not mmap(); hence its free() implementation makes no system calls. + dnl For other platforms, you can only be sure if they state it in their + dnl documentation, or by code inspection of the free() implementation in libc. + AC_CACHE_CHECK([whether free is known to preserve errno], + [gl_cv_func_free_preserves_errno], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include + ]], + [[#if 2 < __GLIBC__ + (33 <= __GLIBC_MINOR__) + #elif defined __OpenBSD__ + #elif defined __sun + #else + #error "'free' is not known to preserve errno" + #endif + ]])], + [gl_cv_func_free_preserves_errno=yes], + [gl_cv_func_free_preserves_errno=no]) + ]) + + case $gl_cv_func_free_preserves_errno in + *yes) ;; + *) REPLACE_FREE=1 ;; + esac +]) + +# Prerequisites of lib/free.c. +AC_DEFUN([gl_PREREQ_FREE], [:]) diff --git a/m4/fsusage.m4 b/m4/fsusage.m4 index 0bc62066aab..c15cfca4d3e 100644 --- a/m4/fsusage.m4 +++ b/m4/fsusage.m4 @@ -1,4 +1,4 @@ -# serial 34 +# serial 35 # Obtaining file system usage information. # Copyright (C) 1997-1998, 2000-2001, 2003-2020 Free Software Foundation, Inc. @@ -36,7 +36,6 @@ AC_DEFUN([gl_FILE_SYSTEM_USAGE], dnl Mac OS X >= 10.5 (32-bit mode). AC_REQUIRE([AC_SYS_LARGEFILE]) - AC_MSG_CHECKING([how to get file system space usage]) ac_fsusage_space=no # Perform only the link test since it seems there are no variants of the diff --git a/m4/gnulib-common.m4 b/m4/gnulib-common.m4 index 33e56faa98e..2c0ae9bef40 100644 --- a/m4/gnulib-common.m4 +++ b/m4/gnulib-common.m4 @@ -1,4 +1,4 @@ -# gnulib-common.m4 serial 57 +# gnulib-common.m4 serial 63 dnl Copyright (C) 2007-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -483,23 +483,17 @@ AC_DEFUN([gl_FEATURES_H], # gl_PROG_CC_C99 # Modifies the value of the shell variable CC in an attempt to make $CC # understand ISO C99 source code. -# This is like AC_PROG_CC_C99, except that -# - AC_PROG_CC_C99 does not mix well with AC_PROG_CC_STDC -# , -# but many more packages use AC_PROG_CC_STDC than AC_PROG_CC_C99 -# . -# Remaining problems: -# - When AC_PROG_CC_STDC is invoked twice, it adds the C99 enabling options -# to CC twice -# . -# - AC_PROG_CC_STDC is likely to change now that C11 is an ISO standard. AC_DEFUN([gl_PROG_CC_C99], [ - dnl Change that version number to the minimum Autoconf version that supports - dnl mixing AC_PROG_CC_C99 calls with AC_PROG_CC_STDC calls. - m4_version_prereq([9.0], - [AC_REQUIRE([AC_PROG_CC_C99])], - [AC_REQUIRE([AC_PROG_CC_STDC])]) + dnl Just use AC_PROG_CC_C99. + dnl When AC_PROG_CC_C99 and AC_PROG_CC_STDC are used together, the substituted + dnl value of CC will contain the C99 enabling options twice. But this is only + dnl a cosmetic problem. + dnl With Autoconf >= 2.70, use AC_PROG_CC since it implies AC_PROG_CC_C99; + dnl this avoids a "warning: The macro `AC_PROG_CC_C99' is obsolete." + m4_version_prereq([2.70], + [AC_REQUIRE([AC_PROG_CC])], + [AC_REQUIRE([AC_PROG_CC_C99])]) ]) # gl_PROG_AR_RANLIB @@ -573,16 +567,16 @@ Amsterdam ]) # AC_C_RESTRICT -# This definition is copied from post-2.69 Autoconf and overrides the -# AC_C_RESTRICT macro from autoconf 2.60..2.69. It can be removed -# once autoconf >= 2.70 can be assumed. It's painful to check version -# numbers, and in practice this macro is more up-to-date than Autoconf -# is, so override Autoconf unconditionally. +# This definition is copied from post-2.70 Autoconf and overrides the +# AC_C_RESTRICT macro from autoconf 2.60..2.70. +m4_version_prereq([2.70.1], [], [ AC_DEFUN([AC_C_RESTRICT], [AC_CACHE_CHECK([for C/C++ restrict keyword], [ac_cv_c_restrict], [ac_cv_c_restrict=no - # The order here caters to the fact that C++ does not require restrict. - for ac_kw in __restrict __restrict__ _Restrict restrict; do + # Put '__restrict__' first, to avoid problems with glibc and non-GCC; see: + # https://lists.gnu.org/archive/html/bug-autoconf/2016-02/msg00006.html + # Put 'restrict' last, because C++ lacks it. + for ac_kw in __restrict__ __restrict _Restrict restrict; do AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[typedef int *int_ptr; @@ -602,7 +596,7 @@ AC_DEFUN([AC_C_RESTRICT], AH_VERBATIM([restrict], [/* Define to the equivalent of the C99 'restrict' keyword, or to nothing if this is not supported. Do not define if restrict is - supported directly. */ + supported only directly. */ #undef restrict /* Work around a bug in older versions of Sun C++, which did not #define __restrict__ or support _Restrict or __restrict__ @@ -620,6 +614,7 @@ AC_DEFUN([AC_C_RESTRICT], *) AC_DEFINE_UNQUOTED([restrict], [$ac_cv_c_restrict]) ;; esac ])# AC_C_RESTRICT +]) # gl_BIGENDIAN # is like AC_C_BIGENDIAN, except that it can be AC_REQUIREd. @@ -630,13 +625,20 @@ AC_DEFUN([gl_BIGENDIAN], AC_C_BIGENDIAN ]) +# A temporary file descriptor. +# Must be less than 10, because dash 0.5.8 does not support redirections +# with multi-digit file descriptors. +m4_define([GL_TMP_FD], 9) + # gl_SILENT(command) # executes command, but without the normal configure output. +# This is useful when you want to invoke AC_CACHE_CHECK (or AC_CHECK_FUNC etc.) +# inside another AC_CACHE_CHECK. AC_DEFUN([gl_SILENT], [ - { - $1 - } AS_MESSAGE_FD>/dev/null + exec GL_TMP_FD>&AS_MESSAGE_FD AS_MESSAGE_FD>/dev/null + $1 + exec AS_MESSAGE_FD>&GL_TMP_FD GL_TMP_FD>&- ]) # gl_CACHE_VAL_SILENT(cache-id, command-to-set-it) @@ -646,10 +648,9 @@ AC_DEFUN([gl_SILENT], # by an AC_MSG_CHECKING/AC_MSG_RESULT pair. AC_DEFUN([gl_CACHE_VAL_SILENT], [ - saved_as_echo_n="$as_echo_n" - as_echo_n=':' - AC_CACHE_VAL([$1], [$2]) - as_echo_n="$saved_as_echo_n" + gl_SILENT([ + AC_CACHE_VAL([$1], [$2]) + ]) ]) dnl Expands to some code for use in .c programs that, on native Windows, defines diff --git a/m4/gnulib-comp.m4 b/m4/gnulib-comp.m4 index d2fdbd82e73..beb9817d266 100644 --- a/m4/gnulib-comp.m4 +++ b/m4/gnulib-comp.m4 @@ -94,6 +94,7 @@ AC_DEFUN([gl_EARLY], # Code from module fpending: # Code from module fpieee: AC_REQUIRE([gl_FP_IEEE]) + # Code from module free-posix: # Code from module fstatat: # Code from module fsusage: # Code from module fsync: @@ -109,6 +110,7 @@ AC_DEFUN([gl_EARLY], # Code from module gettimeofday: # Code from module gitlog-to-changelog: # Code from module group-member: + # Code from module idx: # Code from module ieee754-h: # Code from module ignore-value: # Code from module include_next: @@ -121,7 +123,6 @@ AC_DEFUN([gl_EARLY], # Code from module libgmp: # Code from module limits-h: # Code from module lstat: - # Code from module malloca: # Code from module manywarnings: # Code from module memmem-simple: # Code from module mempcpy: @@ -140,10 +141,12 @@ AC_DEFUN([gl_EARLY], # Code from module pselect: # Code from module pthread_sigmask: # Code from module qcopy-acl: + # Code from module rawmemchr: # Code from module readlink: # Code from module readlinkat: # Code from module regex: # Code from module root-uid: + # Code from module scratch_buffer: # Code from module sig2str: # Code from module sigdescr_np: # Code from module signal-h: @@ -508,16 +511,19 @@ AC_DEFUN([gl_INIT], gl_gnulib_enabled_cloexec=false gl_gnulib_enabled_dirfd=false gl_gnulib_enabled_euidaccess=false + gl_gnulib_enabled_ef07dc4b3077c11ea9cef586db4e5955=false gl_gnulib_enabled_getdtablesize=false gl_gnulib_enabled_getgroups=false gl_gnulib_enabled_be453cec5eecf5731a274f2de7f2db36=false gl_gnulib_enabled_a9786850e999ae65a836a6041e8e5ed1=false + gl_gnulib_enabled_idx=false gl_gnulib_enabled_lchmod=false - gl_gnulib_enabled_malloca=false gl_gnulib_enabled_5264294aa0a5557541b53c8c741f7f31=false gl_gnulib_enabled_open=false gl_gnulib_enabled_03e0aaad4cb89ca757653bd367a6ccb7=false + gl_gnulib_enabled_rawmemchr=false gl_gnulib_enabled_6099e9737f757db36c47fa9d9f02e88c=false + gl_gnulib_enabled_scratch_buffer=false gl_gnulib_enabled_strtoll=false gl_gnulib_enabled_utimens=false gl_gnulib_enabled_682e609604ccaac6be382e4ee3a4eaec=false @@ -567,6 +573,18 @@ AC_DEFUN([gl_INIT], func_gl_gnulib_m4code_6099e9737f757db36c47fa9d9f02e88c fi } + func_gl_gnulib_m4code_ef07dc4b3077c11ea9cef586db4e5955 () + { + if ! $gl_gnulib_enabled_ef07dc4b3077c11ea9cef586db4e5955; then + gl_FUNC_FREE + if test $REPLACE_FREE = 1; then + AC_LIBOBJ([free]) + gl_PREREQ_FREE + fi + gl_STDLIB_MODULE_INDICATOR([free-posix]) + gl_gnulib_enabled_ef07dc4b3077c11ea9cef586db4e5955=true + fi + } func_gl_gnulib_m4code_getdtablesize () { if ! $gl_gnulib_enabled_getdtablesize; then @@ -616,6 +634,12 @@ AC_DEFUN([gl_INIT], fi fi } + func_gl_gnulib_m4code_idx () + { + if ! $gl_gnulib_enabled_idx; then + gl_gnulib_enabled_idx=true + fi + } func_gl_gnulib_m4code_lchmod () { if ! $gl_gnulib_enabled_lchmod; then @@ -628,14 +652,6 @@ AC_DEFUN([gl_INIT], gl_gnulib_enabled_lchmod=true fi } - func_gl_gnulib_m4code_malloca () - { - if ! $gl_gnulib_enabled_malloca; then - gl_MALLOCA - gl_gnulib_enabled_malloca=true - func_gl_gnulib_m4code_682e609604ccaac6be382e4ee3a4eaec - fi - } func_gl_gnulib_m4code_5264294aa0a5557541b53c8c741f7f31 () { if ! $gl_gnulib_enabled_5264294aa0a5557541b53c8c741f7f31; then @@ -668,12 +684,30 @@ AC_DEFUN([gl_INIT], gl_gnulib_enabled_03e0aaad4cb89ca757653bd367a6ccb7=true fi } + func_gl_gnulib_m4code_rawmemchr () + { + if ! $gl_gnulib_enabled_rawmemchr; then + gl_FUNC_RAWMEMCHR + if test $HAVE_RAWMEMCHR = 0; then + AC_LIBOBJ([rawmemchr]) + gl_PREREQ_RAWMEMCHR + fi + gl_STRING_MODULE_INDICATOR([rawmemchr]) + gl_gnulib_enabled_rawmemchr=true + fi + } func_gl_gnulib_m4code_6099e9737f757db36c47fa9d9f02e88c () { if ! $gl_gnulib_enabled_6099e9737f757db36c47fa9d9f02e88c; then gl_gnulib_enabled_6099e9737f757db36c47fa9d9f02e88c=true fi } + func_gl_gnulib_m4code_scratch_buffer () + { + if ! $gl_gnulib_enabled_scratch_buffer; then + gl_gnulib_enabled_scratch_buffer=true + fi + } func_gl_gnulib_m4code_strtoll () { if ! $gl_gnulib_enabled_strtoll; then @@ -700,7 +734,16 @@ AC_DEFUN([gl_INIT], fi } if test $HAVE_CANONICALIZE_FILE_NAME = 0 || test $REPLACE_CANONICALIZE_FILE_NAME = 1; then - func_gl_gnulib_m4code_malloca + func_gl_gnulib_m4code_ef07dc4b3077c11ea9cef586db4e5955 + fi + if test $HAVE_CANONICALIZE_FILE_NAME = 0 || test $REPLACE_CANONICALIZE_FILE_NAME = 1; then + func_gl_gnulib_m4code_idx + fi + if test $HAVE_CANONICALIZE_FILE_NAME = 0 || test $REPLACE_CANONICALIZE_FILE_NAME = 1; then + func_gl_gnulib_m4code_rawmemchr + fi + if test $HAVE_CANONICALIZE_FILE_NAME = 0 || test $REPLACE_CANONICALIZE_FILE_NAME = 1; then + func_gl_gnulib_m4code_scratch_buffer fi if test $HAVE_FACCESSAT = 0 || test $REPLACE_FACCESSAT = 1; then func_gl_gnulib_m4code_260941c0e5dc67ec9e87d1fb321c300b @@ -747,15 +790,18 @@ AC_DEFUN([gl_INIT], if case $host_os in mingw*) false;; *) test $HAVE_GETRANDOM = 0 || test $REPLACE_GETRANDOM = 1;; esac; then func_gl_gnulib_m4code_open fi - if test $HAVE_READLINKAT = 0; then + if test $HAVE_READLINKAT = 0 || test $REPLACE_READLINKAT = 1; then func_gl_gnulib_m4code_260941c0e5dc67ec9e87d1fb321c300b fi - if test $HAVE_READLINKAT = 0; then + if test $HAVE_READLINKAT = 0 || test $REPLACE_READLINKAT = 1; then func_gl_gnulib_m4code_03e0aaad4cb89ca757653bd367a6ccb7 fi if { test $HAVE_DECL_STRTOIMAX = 0 || test $REPLACE_STRTOIMAX = 1; } && test $ac_cv_type_long_long_int = yes; then func_gl_gnulib_m4code_strtoll fi + if test $HAVE_TIMEZONE_T = 0; then + func_gl_gnulib_m4code_idx + fi if test $HAVE_TIMEGM = 0 || test $REPLACE_TIMEGM = 1; then func_gl_gnulib_m4code_5264294aa0a5557541b53c8c741f7f31 fi @@ -773,16 +819,19 @@ AC_DEFUN([gl_INIT], AM_CONDITIONAL([gl_GNULIB_ENABLED_cloexec], [$gl_gnulib_enabled_cloexec]) AM_CONDITIONAL([gl_GNULIB_ENABLED_dirfd], [$gl_gnulib_enabled_dirfd]) AM_CONDITIONAL([gl_GNULIB_ENABLED_euidaccess], [$gl_gnulib_enabled_euidaccess]) + AM_CONDITIONAL([gl_GNULIB_ENABLED_ef07dc4b3077c11ea9cef586db4e5955], [$gl_gnulib_enabled_ef07dc4b3077c11ea9cef586db4e5955]) AM_CONDITIONAL([gl_GNULIB_ENABLED_getdtablesize], [$gl_gnulib_enabled_getdtablesize]) AM_CONDITIONAL([gl_GNULIB_ENABLED_getgroups], [$gl_gnulib_enabled_getgroups]) AM_CONDITIONAL([gl_GNULIB_ENABLED_be453cec5eecf5731a274f2de7f2db36], [$gl_gnulib_enabled_be453cec5eecf5731a274f2de7f2db36]) AM_CONDITIONAL([gl_GNULIB_ENABLED_a9786850e999ae65a836a6041e8e5ed1], [$gl_gnulib_enabled_a9786850e999ae65a836a6041e8e5ed1]) + AM_CONDITIONAL([gl_GNULIB_ENABLED_idx], [$gl_gnulib_enabled_idx]) AM_CONDITIONAL([gl_GNULIB_ENABLED_lchmod], [$gl_gnulib_enabled_lchmod]) - AM_CONDITIONAL([gl_GNULIB_ENABLED_malloca], [$gl_gnulib_enabled_malloca]) AM_CONDITIONAL([gl_GNULIB_ENABLED_5264294aa0a5557541b53c8c741f7f31], [$gl_gnulib_enabled_5264294aa0a5557541b53c8c741f7f31]) AM_CONDITIONAL([gl_GNULIB_ENABLED_open], [$gl_gnulib_enabled_open]) AM_CONDITIONAL([gl_GNULIB_ENABLED_03e0aaad4cb89ca757653bd367a6ccb7], [$gl_gnulib_enabled_03e0aaad4cb89ca757653bd367a6ccb7]) + AM_CONDITIONAL([gl_GNULIB_ENABLED_rawmemchr], [$gl_gnulib_enabled_rawmemchr]) AM_CONDITIONAL([gl_GNULIB_ENABLED_6099e9737f757db36c47fa9d9f02e88c], [$gl_gnulib_enabled_6099e9737f757db36c47fa9d9f02e88c]) + AM_CONDITIONAL([gl_GNULIB_ENABLED_scratch_buffer], [$gl_gnulib_enabled_scratch_buffer]) AM_CONDITIONAL([gl_GNULIB_ENABLED_strtoll], [$gl_gnulib_enabled_strtoll]) AM_CONDITIONAL([gl_GNULIB_ENABLED_utimens], [$gl_gnulib_enabled_utimens]) AM_CONDITIONAL([gl_GNULIB_ENABLED_682e609604ccaac6be382e4ee3a4eaec], [$gl_gnulib_enabled_682e609604ccaac6be382e4ee3a4eaec]) @@ -989,6 +1038,7 @@ AC_DEFUN([gl_FILE_LIST], [ lib/flexmember.h lib/fpending.c lib/fpending.h + lib/free.c lib/fstatat.c lib/fsusage.c lib/fsusage.h @@ -1015,6 +1065,7 @@ AC_DEFUN([gl_FILE_LIST], [ lib/gettimeofday.c lib/gl_openssl.h lib/group-member.c + lib/idx.h lib/ieee754.in.h lib/ignore-value.h lib/intprops.h @@ -1023,8 +1074,10 @@ AC_DEFUN([gl_FILE_LIST], [ lib/libc-config.h lib/limits.in.h lib/lstat.c - lib/malloca.c - lib/malloca.h + lib/malloc/scratch_buffer.h + lib/malloc/scratch_buffer_grow.c + lib/malloc/scratch_buffer_grow_preserve.c + lib/malloc/scratch_buffer_set_array_size.c lib/md5.c lib/md5.h lib/memmem.c @@ -1047,6 +1100,8 @@ AC_DEFUN([gl_FILE_LIST], [ lib/pselect.c lib/pthread_sigmask.c lib/qcopy-acl.c + lib/rawmemchr.c + lib/rawmemchr.valgrind lib/readlink.c lib/readlinkat.c lib/regcomp.c @@ -1056,6 +1111,7 @@ AC_DEFUN([gl_FILE_LIST], [ lib/regex_internal.h lib/regexec.c lib/root-uid.h + lib/scratch_buffer.h lib/set-permissions.c lib/sha1.c lib/sha1.h @@ -1145,6 +1201,7 @@ AC_DEFUN([gl_FILE_LIST], [ m4/flexmember.m4 m4/fpending.m4 m4/fpieee.m4 + m4/free.m4 m4/fstatat.m4 m4/fsusage.m4 m4/fsync.m4 @@ -1168,7 +1225,6 @@ AC_DEFUN([gl_FILE_LIST], [ m4/libgmp.m4 m4/limits-h.m4 m4/lstat.m4 - m4/malloca.m4 m4/manywarnings-c++.m4 m4/manywarnings.m4 m4/mbstate_t.m4 @@ -1192,6 +1248,7 @@ AC_DEFUN([gl_FILE_LIST], [ m4/pipe2.m4 m4/pselect.m4 m4/pthread_sigmask.m4 + m4/rawmemchr.m4 m4/readlink.m4 m4/readlinkat.m4 m4/regex.m4 @@ -1203,7 +1260,6 @@ AC_DEFUN([gl_FILE_LIST], [ m4/signal_h.m4 m4/socklen.m4 m4/ssize_t.m4 - m4/st_dm_mode.m4 m4/stat-time.m4 m4/std-gnu11.m4 m4/stdalign.m4 diff --git a/m4/largefile.m4 b/m4/largefile.m4 index f4c5d3a5cea..c4cc835bea0 100644 --- a/m4/largefile.m4 +++ b/m4/largefile.m4 @@ -25,7 +25,7 @@ AC_DEFUN([gl_SET_LARGEFILE_SOURCE], # The following implementation works around a problem in autoconf <= 2.69; # AC_SYS_LARGEFILE does not configure for large inodes on Mac OS X 10.5, # or configures them incorrectly in some cases. -m4_version_prereq([2.70], [] ,[ +m4_version_prereq([2.70], [], [ # _AC_SYS_LARGEFILE_TEST_INCLUDES # ------------------------------- diff --git a/m4/mbstate_t.m4 b/m4/mbstate_t.m4 index 057ce12ebe6..226f1228dde 100644 --- a/m4/mbstate_t.m4 +++ b/m4/mbstate_t.m4 @@ -1,4 +1,4 @@ -# mbstate_t.m4 serial 13 +# mbstate_t.m4 serial 14 dnl Copyright (C) 2000-2002, 2008-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -20,14 +20,7 @@ AC_DEFUN([AC_TYPE_MBSTATE_T], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [AC_INCLUDES_DEFAULT[ -/* Tru64 with Desktop Toolkit C has a bug: must be included before - . - BSD/OS 4.0.1 has a bug: , and must be - included before . */ -#include -#include -#include -#include ]], + #include ]], [[mbstate_t x; return sizeof x;]])], [ac_cv_type_mbstate_t=yes], [ac_cv_type_mbstate_t=no])]) diff --git a/m4/pid_t.m4 b/m4/pid_t.m4 new file mode 100644 index 00000000000..c7abceeecba --- /dev/null +++ b/m4/pid_t.m4 @@ -0,0 +1,38 @@ +# pid_t.m4 serial 4 +dnl Copyright (C) 2020 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# The following implementation works around a problem in autoconf <= 2.69. +m4_version_prereq([2.70], [], [ + +dnl Define pid_t if the headers don't define it. +AC_DEFUN([AC_TYPE_PID_T], +[ + AC_CHECK_TYPE([pid_t], + [], + [dnl On 64-bit native Windows, define it to the equivalent of 'intptr_t' + dnl (= 'long long' = '__int64'), because that is the return type + dnl of the _spawnv* functions + dnl + dnl and the argument type of the _cwait function + dnl . + dnl Otherwise (on 32-bit Windows and on old Unix platforms), define it + dnl to 'int'. + AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[ + #if defined _WIN64 && !defined __CYGWIN__ + LLP64 + #endif + ]]) + ], + [gl_pid_type='int'], + [gl_pid_type='__int64']) + AC_DEFINE_UNQUOTED([pid_t], [$gl_pid_type], + [Define as a signed integer type capable of holding a process identifier.]) + ], + [AC_INCLUDES_DEFAULT]) +]) + +])# m4_version_prereq 2.70 diff --git a/m4/rawmemchr.m4 b/m4/rawmemchr.m4 new file mode 100644 index 00000000000..c5bf04189c6 --- /dev/null +++ b/m4/rawmemchr.m4 @@ -0,0 +1,20 @@ +# rawmemchr.m4 serial 2 +dnl Copyright (C) 2003, 2007-2020 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_RAWMEMCHR], +[ + dnl Persuade glibc to declare rawmemchr(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS]) + AC_CHECK_FUNCS([rawmemchr]) + if test $ac_cv_func_rawmemchr = no; then + HAVE_RAWMEMCHR=0 + fi +]) + +# Prerequisites of lib/strchrnul.c. +AC_DEFUN([gl_PREREQ_RAWMEMCHR], [:]) diff --git a/m4/readlink.m4 b/m4/readlink.m4 index 9aa9e46da8c..c7f436a3125 100644 --- a/m4/readlink.m4 +++ b/m4/readlink.m4 @@ -1,4 +1,4 @@ -# readlink.m4 serial 15 +# readlink.m4 serial 16 dnl Copyright (C) 2003, 2007, 2009-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -23,7 +23,7 @@ AC_DEFUN([gl_FUNC_READLINK], dnl Solaris 9 ignores trailing slash. dnl FreeBSD 7.2 dereferences only one level of links with trailing slash. AC_CACHE_CHECK([whether readlink handles trailing slash correctly], - [gl_cv_func_readlink_works], + [gl_cv_func_readlink_trailing_slash], [# We have readlink, so assume ln -s works. ln -s conftest.no-such conftest.link ln -s conftest.link conftest.lnk2 @@ -32,18 +32,22 @@ AC_DEFUN([gl_FUNC_READLINK], [[#include ]], [[char buf[20]; return readlink ("conftest.lnk2/", buf, sizeof buf) != -1;]])], - [gl_cv_func_readlink_works=yes], [gl_cv_func_readlink_works=no], + [gl_cv_func_readlink_trailing_slash=yes], + [gl_cv_func_readlink_trailing_slash=no], [case "$host_os" in - # Guess yes on Linux systems. - linux-* | linux) gl_cv_func_readlink_works="guessing yes" ;; - # Guess yes on glibc systems. - *-gnu* | gnu*) gl_cv_func_readlink_works="guessing yes" ;; - # If we don't know, obey --enable-cross-guesses. - *) gl_cv_func_readlink_works="$gl_cross_guess_normal" ;; + # Guess yes on Linux or glibc systems. + linux-* | linux | *-gnu* | gnu*) + gl_cv_func_readlink_trailing_slash="guessing yes" ;; + # Guess no on AIX or HP-UX. + aix* | hpux*) + gl_cv_func_readlink_trailing_slash="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) + gl_cv_func_readlink_trailing_slash="$gl_cross_guess_normal" ;; esac ]) rm -f conftest.link conftest.lnk2]) - case "$gl_cv_func_readlink_works" in + case "$gl_cv_func_readlink_trailing_slash" in *yes) if test "$gl_cv_decl_readlink_works" != yes; then REPLACE_READLINK=1 @@ -55,6 +59,43 @@ AC_DEFUN([gl_FUNC_READLINK], REPLACE_READLINK=1 ;; esac + + AC_CACHE_CHECK([whether readlink truncates results correctly], + [gl_cv_func_readlink_truncate], + [# We have readlink, so assume ln -s works. + ln -s ab conftest.link + AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[#include +]], [[char c; + return readlink ("conftest.link", &c, 1) != 1;]])], + [gl_cv_func_readlink_truncate=yes], + [gl_cv_func_readlink_truncate=no], + [case "$host_os" in + # Guess yes on Linux or glibc systems. + linux-* | linux | *-gnu* | gnu*) + gl_cv_func_readlink_truncate="guessing yes" ;; + # Guess no on AIX or HP-UX. + aix* | hpux*) + gl_cv_func_readlink_truncate="guessing no" ;; + # If we don't know, obey --enable-cross-guesses. + *) + gl_cv_func_readlink_truncate="$gl_cross_guess_normal" ;; + esac + ]) + rm -f conftest.link conftest.lnk2]) + case $gl_cv_func_readlink_truncate in + *yes) + if test "$gl_cv_decl_readlink_works" != yes; then + REPLACE_READLINK=1 + fi + ;; + *) + AC_DEFINE([READLINK_TRUNCATE_BUG], [1], [Define to 1 if readlink + sets errno instead of truncating a too-long link.]) + REPLACE_READLINK=1 + ;; + esac fi ]) diff --git a/m4/readlinkat.m4 b/m4/readlinkat.m4 index 6ef1f590c06..73e343f746d 100644 --- a/m4/readlinkat.m4 +++ b/m4/readlinkat.m4 @@ -1,4 +1,4 @@ -# serial 5 +# serial 6 # See if we need to provide readlinkat replacement. dnl Copyright (C) 2009-2020 Free Software Foundation, Inc. @@ -26,13 +26,10 @@ AC_DEFUN([gl_FUNC_READLINKAT], ssize_t readlinkat (int, char const *, char *, size_t);]])], [gl_cv_decl_readlinkat_works=yes], [gl_cv_decl_readlinkat_works=no])]) - # Assume readinkat has the same trailing slash bug as readlink, - # as is the case on Mac Os X 10.10 - case "$gl_cv_func_readlink_works" in - *yes) - if test "$gl_cv_decl_readlinkat_works" != yes; then - REPLACE_READLINKAT=1 - fi + # Assume readlinkat has the same bugs as readlink, + # as is the case on OS X 10.10 with trailing slashes. + case $gl_cv_decl_readlinkat_works,$gl_cv_func_readlink_trailing_slash,$gl_cv_func_readlink_truncate in + *yes,*yes,*yes) ;; *) REPLACE_READLINKAT=1 diff --git a/m4/std-gnu11.m4 b/m4/std-gnu11.m4 index db833d820f3..b5ab8abed02 100644 --- a/m4/std-gnu11.m4 +++ b/m4/std-gnu11.m4 @@ -6,6 +6,8 @@ # This implementation will be obsolete once we can assume Autoconf 2.70 # or later is installed everywhere a Gnulib program might be developed. +m4_version_prereq([2.70], [], [ + # Copyright (C) 2001-2020 Free Software Foundation, Inc. @@ -822,3 +824,6 @@ dnl Tru64 N/A (no support) dnl with extended modes being tried first. [[-std=gnu++11 -std=c++11 -std=gnu++0x -std=c++0x -qlanglvl=extended0x -AA]], [$1], [$2])[]dnl ])# _AC_PROG_CXX_CXX11 + + +])# m4_version_prereq diff --git a/m4/stdint.m4 b/m4/stdint.m4 index d5f5d6133a9..adaea3e5826 100644 --- a/m4/stdint.m4 +++ b/m4/stdint.m4 @@ -1,4 +1,4 @@ -# stdint.m4 serial 56 +# stdint.m4 serial 58 dnl Copyright (C) 2001-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -34,7 +34,7 @@ AC_DEFUN_ONCE([gl_STDINT_H], AC_SUBST([HAVE_WCHAR_H]) dnl Check for . - dnl AC_INCLUDES_DEFAULT defines $ac_cv_header_inttypes_h. + AC_CHECK_HEADERS_ONCE([inttypes.h]) if test $ac_cv_header_inttypes_h = yes; then HAVE_INTTYPES_H=1 else @@ -43,7 +43,7 @@ AC_DEFUN_ONCE([gl_STDINT_H], AC_SUBST([HAVE_INTTYPES_H]) dnl Check for . - dnl AC_INCLUDES_DEFAULT defines $ac_cv_header_sys_types_h. + AC_CHECK_HEADERS_ONCE([sys/types.h]) if test $ac_cv_header_sys_types_h = yes; then HAVE_SYS_TYPES_H=1 else @@ -493,13 +493,9 @@ AC_DEFUN([gl_INTEGER_TYPE_SUFFIX], dnl gl_STDINT_INCLUDES AC_DEFUN([gl_STDINT_INCLUDES], [[ - /* BSD/OS 4.0.1 has a bug: , and must be - included before . */ #include #include #if HAVE_WCHAR_H - # include - # include # include #endif ]]) diff --git a/m4/stdio_h.m4 b/m4/stdio_h.m4 index 5f968bc26a5..6003a31b382 100644 --- a/m4/stdio_h.m4 +++ b/m4/stdio_h.m4 @@ -1,4 +1,4 @@ -# stdio_h.m4 serial 50 +# stdio_h.m4 serial 51 dnl Copyright (C) 2007-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -109,6 +109,11 @@ AC_DEFUN([gl_STDIO_H], renameat snprintf tmpfile vdprintf vsnprintf]) AC_REQUIRE([AC_C_RESTRICT]) + + AC_CHECK_DECLS_ONCE([fcloseall]) + if test $ac_cv_have_decl_fcloseall = no; then + HAVE_DECL_FCLOSEALL=0 + fi ]) AC_DEFUN([gl_STDIO_MODULE_INDICATOR], @@ -176,6 +181,7 @@ AC_DEFUN([gl_STDIO_H_DEFAULTS], GNULIB_VSNPRINTF=0; AC_SUBST([GNULIB_VSNPRINTF]) GNULIB_VSPRINTF_POSIX=0; AC_SUBST([GNULIB_VSPRINTF_POSIX]) dnl Assume proper GNU behavior unless another module says otherwise. + HAVE_DECL_FCLOSEALL=1; AC_SUBST([HAVE_DECL_FCLOSEALL]) HAVE_DECL_FPURGE=1; AC_SUBST([HAVE_DECL_FPURGE]) HAVE_DECL_FSEEKO=1; AC_SUBST([HAVE_DECL_FSEEKO]) HAVE_DECL_FTELLO=1; AC_SUBST([HAVE_DECL_FTELLO]) diff --git a/m4/stdlib_h.m4 b/m4/stdlib_h.m4 index 743066a6336..7e03b9a6d58 100644 --- a/m4/stdlib_h.m4 +++ b/m4/stdlib_h.m4 @@ -1,4 +1,4 @@ -# stdlib_h.m4 serial 49 +# stdlib_h.m4 serial 54 dnl Copyright (C) 2007-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -22,13 +22,28 @@ AC_DEFUN([gl_STDLIB_H], #if HAVE_RANDOM_H # include #endif - ]], [_Exit atoll canonicalize_file_name getloadavg getsubopt grantpt + ]], [_Exit aligned_alloc atoll canonicalize_file_name free + getloadavg getsubopt grantpt initstate initstate_r mbtowc mkdtemp mkostemp mkostemps mkstemp mkstemps - posix_openpt ptsname ptsname_r qsort_r random random_r reallocarray - realpath rpmatch secure_getenv setenv setstate setstate_r srandom - srandom_r strtod strtold strtoll strtoull unlockpt unsetenv]) + posix_memalign posix_openpt ptsname ptsname_r qsort_r + random random_r reallocarray realpath rpmatch secure_getenv setenv + setstate setstate_r srandom srandom_r + strtod strtold strtoll strtoull unlockpt unsetenv]) AC_REQUIRE([AC_C_RESTRICT]) + + AC_CHECK_DECLS_ONCE([ecvt]) + if test $ac_cv_have_decl_ecvt = no; then + HAVE_DECL_ECVT=0 + fi + AC_CHECK_DECLS_ONCE([fcvt]) + if test $ac_cv_have_decl_fcvt = no; then + HAVE_DECL_FCVT=0 + fi + AC_CHECK_DECLS_ONCE([gcvt]) + if test $ac_cv_have_decl_gcvt = no; then + HAVE_DECL_GCVT=0 + fi ]) AC_DEFUN([gl_STDLIB_MODULE_INDICATOR], @@ -43,9 +58,11 @@ AC_DEFUN([gl_STDLIB_MODULE_INDICATOR], AC_DEFUN([gl_STDLIB_H_DEFAULTS], [ GNULIB__EXIT=0; AC_SUBST([GNULIB__EXIT]) + GNULIB_ALIGNED_ALLOC=0; AC_SUBST([GNULIB_ALIGNED_ALLOC]) GNULIB_ATOLL=0; AC_SUBST([GNULIB_ATOLL]) GNULIB_CALLOC_POSIX=0; AC_SUBST([GNULIB_CALLOC_POSIX]) GNULIB_CANONICALIZE_FILE_NAME=0; AC_SUBST([GNULIB_CANONICALIZE_FILE_NAME]) + GNULIB_FREE_POSIX=0; AC_SUBST([GNULIB_FREE_POSIX]) GNULIB_GETLOADAVG=0; AC_SUBST([GNULIB_GETLOADAVG]) GNULIB_GETSUBOPT=0; AC_SUBST([GNULIB_GETSUBOPT]) GNULIB_GRANTPT=0; AC_SUBST([GNULIB_GRANTPT]) @@ -56,6 +73,7 @@ AC_DEFUN([gl_STDLIB_H_DEFAULTS], GNULIB_MKOSTEMPS=0; AC_SUBST([GNULIB_MKOSTEMPS]) GNULIB_MKSTEMP=0; AC_SUBST([GNULIB_MKSTEMP]) GNULIB_MKSTEMPS=0; AC_SUBST([GNULIB_MKSTEMPS]) + GNULIB_POSIX_MEMALIGN=0;AC_SUBST([GNULIB_POSIX_MEMALIGN]) GNULIB_POSIX_OPENPT=0; AC_SUBST([GNULIB_POSIX_OPENPT]) GNULIB_PTSNAME=0; AC_SUBST([GNULIB_PTSNAME]) GNULIB_PTSNAME_R=0; AC_SUBST([GNULIB_PTSNAME_R]) @@ -79,8 +97,12 @@ AC_DEFUN([gl_STDLIB_H_DEFAULTS], GNULIB_WCTOMB=0; AC_SUBST([GNULIB_WCTOMB]) dnl Assume proper GNU behavior unless another module says otherwise. HAVE__EXIT=1; AC_SUBST([HAVE__EXIT]) + HAVE_ALIGNED_ALLOC=1; AC_SUBST([HAVE_ALIGNED_ALLOC]) HAVE_ATOLL=1; AC_SUBST([HAVE_ATOLL]) HAVE_CANONICALIZE_FILE_NAME=1; AC_SUBST([HAVE_CANONICALIZE_FILE_NAME]) + HAVE_DECL_ECVT=1; AC_SUBST([HAVE_DECL_ECVT]) + HAVE_DECL_FCVT=1; AC_SUBST([HAVE_DECL_FCVT]) + HAVE_DECL_GCVT=1; AC_SUBST([HAVE_DECL_GCVT]) HAVE_DECL_GETLOADAVG=1; AC_SUBST([HAVE_DECL_GETLOADAVG]) HAVE_GETSUBOPT=1; AC_SUBST([HAVE_GETSUBOPT]) HAVE_GRANTPT=1; AC_SUBST([HAVE_GRANTPT]) @@ -92,6 +114,7 @@ AC_DEFUN([gl_STDLIB_H_DEFAULTS], HAVE_MKOSTEMPS=1; AC_SUBST([HAVE_MKOSTEMPS]) HAVE_MKSTEMP=1; AC_SUBST([HAVE_MKSTEMP]) HAVE_MKSTEMPS=1; AC_SUBST([HAVE_MKSTEMPS]) + HAVE_POSIX_MEMALIGN=1; AC_SUBST([HAVE_POSIX_MEMALIGN]) HAVE_POSIX_OPENPT=1; AC_SUBST([HAVE_POSIX_OPENPT]) HAVE_PTSNAME=1; AC_SUBST([HAVE_PTSNAME]) HAVE_PTSNAME_R=1; AC_SUBST([HAVE_PTSNAME_R]) @@ -115,12 +138,15 @@ AC_DEFUN([gl_STDLIB_H_DEFAULTS], HAVE_SYS_LOADAVG_H=0; AC_SUBST([HAVE_SYS_LOADAVG_H]) HAVE_UNLOCKPT=1; AC_SUBST([HAVE_UNLOCKPT]) HAVE_DECL_UNSETENV=1; AC_SUBST([HAVE_DECL_UNSETENV]) + REPLACE_ALIGNED_ALLOC=0; AC_SUBST([REPLACE_ALIGNED_ALLOC]) REPLACE_CALLOC=0; AC_SUBST([REPLACE_CALLOC]) REPLACE_CANONICALIZE_FILE_NAME=0; AC_SUBST([REPLACE_CANONICALIZE_FILE_NAME]) + REPLACE_FREE=0; AC_SUBST([REPLACE_FREE]) REPLACE_INITSTATE=0; AC_SUBST([REPLACE_INITSTATE]) REPLACE_MALLOC=0; AC_SUBST([REPLACE_MALLOC]) REPLACE_MBTOWC=0; AC_SUBST([REPLACE_MBTOWC]) REPLACE_MKSTEMP=0; AC_SUBST([REPLACE_MKSTEMP]) + REPLACE_POSIX_MEMALIGN=0; AC_SUBST([REPLACE_POSIX_MEMALIGN]) REPLACE_PTSNAME=0; AC_SUBST([REPLACE_PTSNAME]) REPLACE_PTSNAME_R=0; AC_SUBST([REPLACE_PTSNAME_R]) REPLACE_PUTENV=0; AC_SUBST([REPLACE_PUTENV]) diff --git a/m4/sys_types_h.m4 b/m4/sys_types_h.m4 index be918dc0d8b..c3a691becdf 100644 --- a/m4/sys_types_h.m4 +++ b/m4/sys_types_h.m4 @@ -1,4 +1,4 @@ -# sys_types_h.m4 serial 9 +# sys_types_h.m4 serial 11 dnl Copyright (C) 2011-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -36,25 +36,23 @@ AC_DEFUN([gl_SYS_TYPES_H_DEFAULTS], # This works around a buggy version in autoconf <= 2.69. # See +# The 2.70 version isn't quoted properly, so override it too. -m4_version_prereq([2.70], [], [ - -# This is taken from the following Autoconf patch: -# https://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=e17a30e987d7ee695fb4294a82d987ec3dc9b974 +m4_version_prereq([2.70.1], [], [ m4_undefine([AC_HEADER_MAJOR]) AC_DEFUN([AC_HEADER_MAJOR], [AC_CHECK_HEADERS_ONCE([sys/types.h]) AC_CHECK_HEADER([sys/mkdev.h], - [AC_DEFINE([MAJOR_IN_MKDEV], [1], - [Define to 1 if `major', `minor', and `makedev' are declared in - .])]) + [AC_DEFINE([MAJOR_IN_MKDEV], [1], + [Define to 1 if `major', `minor', and `makedev' are + declared in .])]) if test $ac_cv_header_sys_mkdev_h = no; then AC_CHECK_HEADER([sys/sysmacros.h], - [AC_DEFINE([MAJOR_IN_SYSMACROS], [1], - [Define to 1 if `major', `minor', and `makedev' are declared in - .])]) + [AC_DEFINE([MAJOR_IN_SYSMACROS], [1], + [Define to 1 if `major', `minor', and `makedev' + are declared in .])]) fi -]) +])# AC_HEADER_MAJOR ]) diff --git a/m4/unistd_h.m4 b/m4/unistd_h.m4 index b4734daf603..b26d2c88dde 100644 --- a/m4/unistd_h.m4 +++ b/m4/unistd_h.m4 @@ -1,4 +1,4 @@ -# unistd_h.m4 serial 81 +# unistd_h.m4 serial 83 dnl Copyright (C) 2006-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -41,7 +41,8 @@ AC_DEFUN([gl_UNISTD_H], # include # endif #endif - ]], [access chdir chown dup dup2 dup3 environ euidaccess faccessat fchdir + ]], [access chdir chown copy_file_range dup dup2 dup3 environ euidaccess + faccessat fchdir fchownat fdatasync fsync ftruncate getcwd getdomainname getdtablesize getentropy getgroups gethostname getlogin getlogin_r getpagesize getpass getusershell setusershell endusershell @@ -50,6 +51,11 @@ AC_DEFUN([gl_UNISTD_H], truncate ttyname_r unlink unlinkat usleep]) AC_REQUIRE([AC_C_RESTRICT]) + + AC_CHECK_DECLS_ONCE([execvpe]) + if test $ac_cv_have_decl_execvpe = no; then + HAVE_DECL_EXECVPE=0 + fi ]) AC_DEFUN([gl_UNISTD_MODULE_INDICATOR], @@ -152,6 +158,7 @@ AC_DEFUN([gl_UNISTD_H_DEFAULTS], HAVE_UNLINKAT=1; AC_SUBST([HAVE_UNLINKAT]) HAVE_USLEEP=1; AC_SUBST([HAVE_USLEEP]) HAVE_DECL_ENVIRON=1; AC_SUBST([HAVE_DECL_ENVIRON]) + HAVE_DECL_EXECVPE=1; AC_SUBST([HAVE_DECL_EXECVPE]) HAVE_DECL_FCHDIR=1; AC_SUBST([HAVE_DECL_FCHDIR]) HAVE_DECL_FDATASYNC=1; AC_SUBST([HAVE_DECL_FDATASYNC]) HAVE_DECL_GETDOMAINNAME=1; AC_SUBST([HAVE_DECL_GETDOMAINNAME]) diff --git a/m4/vararrays.m4 b/m4/vararrays.m4 index 49ded2efe0d..9524a6ddd33 100644 --- a/m4/vararrays.m4 +++ b/m4/vararrays.m4 @@ -1,6 +1,6 @@ # Check for variable-length arrays. -# serial 5 +# serial 6 # From Paul Eggert @@ -9,9 +9,11 @@ # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. -# This is a copy of AC_C_VARARRAYS from a recent development version -# of Autoconf. It replaces Autoconf's version, or for pre-2.61 autoconf -# it defines the macro that Autoconf lacks. +m4_version_prereq([2.70], [], [ + +# AC_C_VARARRAYS +# -------------- +# Check whether the C compiler supports variable-length arrays. AC_DEFUN([AC_C_VARARRAYS], [ AC_CACHE_CHECK([for variable-length arrays], @@ -27,7 +29,7 @@ AC_DEFUN([AC_C_VARARRAYS], [[/* Test for VLA support. This test is partly inspired from examples in the C standard. Use at least two VLA functions to detect the GCC 3.4.3 bug described in: - https://lists.gnu.org/r/bug-gnulib/2014-08/msg00014.html + https://lists.gnu.org/archive/html/bug-gnulib/2014-08/msg00014.html */ #ifdef __STDC_NO_VLA__ syntax error; @@ -66,3 +68,5 @@ AC_DEFUN([AC_C_VARARRAYS], if the compiler does not already define this.]) fi ]) + +]) -- cgit v1.2.3