diff options
| -rwxr-xr-x | build-aux/config.guess | 9 | ||||
| -rwxr-xr-x | build-aux/config.sub | 4 | ||||
| -rwxr-xr-x | build-aux/gitlog-to-changelog | 4 | ||||
| -rwxr-xr-x | build-aux/update-copyright | 4 | ||||
| -rw-r--r-- | doc/misc/texinfo.tex | 45 | ||||
| -rw-r--r-- | lib/attribute.h | 58 | ||||
| -rw-r--r-- | lib/explicit_bzero.c | 18 | ||||
| -rw-r--r-- | lib/gnulib.mk.in | 10 | ||||
| -rw-r--r-- | lib/ieee754.in.h | 4 | ||||
| -rw-r--r-- | lib/nstrftime.c | 9 | ||||
| -rw-r--r-- | m4/explicit_bzero.m4 | 1 | ||||
| -rw-r--r-- | m4/gnulib-common.m4 | 229 | ||||
| -rw-r--r-- | m4/gnulib-comp.m4 | 2 |
13 files changed, 326 insertions, 71 deletions
diff --git a/build-aux/config.guess b/build-aux/config.guess index 45001cfecde..11fda528bc7 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='2020-01-01' +timestamp='2020-04-26' # 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 @@ -1629,6 +1629,12 @@ 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 and https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub +EOF + +year=`echo $timestamp | sed 's,-.*,,'` +# shellcheck disable=SC2003 +if test "`expr "\`date +%Y\`" - "$year"`" -lt 3 ; then + cat >&2 <<EOF If $0 has already been updated, send the following data and any information you think might be pertinent to config-patches@gnu.org to @@ -1656,6 +1662,7 @@ UNAME_RELEASE = "$UNAME_RELEASE" UNAME_SYSTEM = "$UNAME_SYSTEM" UNAME_VERSION = "$UNAME_VERSION" EOF +fi exit 1 diff --git a/build-aux/config.sub b/build-aux/config.sub index f02d43ad500..a0d12275ac5 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='2020-01-01' +timestamp='2020-04-24' # 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 @@ -1366,7 +1366,7 @@ case $os in | skyos* | haiku* | rdos* | toppers* | drops* | es* \ | onefs* | tirtos* | phoenix* | fuchsia* | redox* | bme* \ | midnightbsd* | amdhsa* | unleashed* | emscripten* | wasi* \ - | nsk* | powerunix) + | nsk* | powerunix*) # Remember, each alternative MUST END IN *, to match a version number. ;; qnx*) diff --git a/build-aux/gitlog-to-changelog b/build-aux/gitlog-to-changelog index 511276757f5..be8082e7ffd 100755 --- a/build-aux/gitlog-to-changelog +++ b/build-aux/gitlog-to-changelog @@ -31,11 +31,11 @@ # are valid code in both sh and perl. When executed by sh, they re-execute # the script through the perl program found in $PATH. The '-x' option # is essential as well; without it, perl would re-execute the script -# through /bin/sh. When executed by perl, the next two lines are a no-op. +# through /bin/sh. When executed by perl, the next two lines are a no-op. eval 'exec perl -wSx "$0" "$@"' if 0; -my $VERSION = '2018-03-07 03:47'; # UTC +my $VERSION = '2020-04-04 15:07'; # UTC # The definition above must lie within the first 8 lines in order # for the Emacs time-stamp write hook (at end) to update it. # If you change this file with Emacs, please let the write hook diff --git a/build-aux/update-copyright b/build-aux/update-copyright index 4f79b56be78..d9b7f683a08 100755 --- a/build-aux/update-copyright +++ b/build-aux/update-copyright @@ -133,11 +133,11 @@ # are valid code in both sh and perl. When executed by sh, they re-execute # the script through the perl program found in $PATH. The '-x' option # is essential as well; without it, perl would re-execute the script -# through /bin/sh. When executed by perl, the next two lines are a no-op. +# through /bin/sh. When executed by perl, the next two lines are a no-op. eval 'exec perl -wSx -0777 -pi "$0" "$@"' if 0; -my $VERSION = '2018-03-07.03:47'; # UTC +my $VERSION = '2020-04-04.15:07'; # UTC # The definition above must lie within the first 8 lines in order # for the Emacs time-stamp write hook (at end) to update it. # If you change this file with Emacs, please let the write hook diff --git a/doc/misc/texinfo.tex b/doc/misc/texinfo.tex index deca5991870..427494cbbfc 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{2020-02-11.09} +\def\texinfoversion{2020-05-02.00} % % Copyright 1985, 1986, 1988, 1990-2019 Free Software Foundation, Inc. % @@ -349,34 +349,19 @@ \ifodd\pageno \advance\hoffset by \bindingoffset \else \advance\hoffset by -\bindingoffset\fi % + \checkchapterpage + % % Retrieve the information for the headings from the marks in the page, % and call Plain TeX's \makeheadline and \makefootline, which use the % values in \headline and \footline. % - % This is used to check if we are on the first page of a chapter. - \ifcase1\the\savedtopmark\fi - \let\prevchaptername\thischaptername - \ifcase0\firstmark\fi - \let\curchaptername\thischaptername - % - \ifodd\pageno \getoddheadingmarks \else \getevenheadingmarks \fi - % - \ifx\curchaptername\prevchaptername - \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 - % being shown twice. - \def\thischapterheading{}% - \fi - % % Common context changes for both heading and footing. % Do this outside of the \shipout so @code etc. will be expanded in % the headline as they should be, not taken literally (outputting ''code). \def\commonheadfootline{\let\hsize=\txipagewidth \texinfochars} % + \ifodd\pageno \getoddheadingmarks \else \getevenheadingmarks \fi \global\setbox\headlinebox = \vbox{\commonheadfootline \makeheadline}% - % \ifodd\pageno \getoddfootingmarks \else \getevenfootingmarks \fi \global\setbox\footlinebox = \vbox{\commonheadfootline \makefootline}% % @@ -423,6 +408,24 @@ \ifr@ggedbottom \kern-\dimen@ \vfil \fi} } +% Check if we are on the first page of a chapter. +\def\checkchapterpage{% + % Get the chapter that was current at the end of the last page + \ifcase1\the\savedtopmark\fi + \let\prevchaptername\thischaptername + % + \ifodd\pageno \getoddheadingmarks \else \getevenheadingmarks \fi + \let\curchaptername\thischaptername + % + \ifx\curchaptername\prevchaptername + \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 + % being shown twice. + \def\thischapterheading{}% + \fi +} % Argument parsing @@ -3101,10 +3104,10 @@ 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 sufficent), a break at the \penalty100 with extra glue added +% the line is sufficient), a break at the \penalty100 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 -% preferrable one choice is over the other. +% preferable one choice is over the other. \def\urefallowbreak{% \allowbreak \hskip 0pt plus 2 em\relax diff --git a/lib/attribute.h b/lib/attribute.h new file mode 100644 index 00000000000..8ef9a399ade --- /dev/null +++ b/lib/attribute.h @@ -0,0 +1,58 @@ +/* ATTRIBUTE_* macros for using attributes in GCC and similar compilers + + Copyright 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 <https://www.gnu.org/licenses/>. */ + +/* Written by Paul Eggert. */ + +/* Provide public ATTRIBUTE_* names for the private _GL_ATTRIBUTE_* + macros used within Gnulib. */ + +#ifndef _GL_ATTRIBUTE_H +#define _GL_ATTRIBUTE_H + +/* C2X standard attributes have macro names that do not begin with + 'ATTRIBUTE_'. */ +#define DEPRECATED _GL_ATTRIBUTE_DEPRECATED +#define FALLTHROUGH _GL_ATTRIBUTE_FALLTHROUGH +#define MAYBE_UNUSED _GL_ATTRIBUTE_MAYBE_UNUSED +#define NODISCARD _GL_ATTRIBUTE_NODISCARD + +/* Selected GCC attributes; see: + https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html + These names begin with 'ATTRIBUTE_' to avoid name clashes. */ +#define ATTRIBUTE_ALLOC_SIZE(args) _GL_ATTRIBUTE_ALLOC_SIZE(args) +#define ATTRIBUTE_ALWAYS_INLINE _GL_ATTRIBUTE_ALWAYS_INLINE +#define ATTRIBUTE_ARTIFICIAL _GL_ATTRIBUTE_ARTIFICIAL +#define ATTRIBUTE_COLD _GL_ATTRIBUTE_COLD +#define ATTRIBUTE_CONST _GL_ATTRIBUTE_CONST +#define ATTRIBUTE_DEPRECATED _GL_ATTRIBUTE_DEPRECATED +#define ATTRIBUTE_ERROR(msg) _GL_ATTRIBUTE_ERROR(msg) +#define ATTRIBUTE_EXTERNALLY_VISIBLE _GL_ATTRIBUTE_EXTERNALLY_VISIBLE +#define ATTRIBUTE_FORMAT(spec) _GL_ATTRIBUTE_FORMAT(spec) +#define ATTRIBUTE_LEAF _GL_ATTRIBUTE_LEAF +#define ATTRIBUTE_MAY_ALIAS _GL_ATTRIBUTE_MAY_ALIAS +#define ATTRIBUTE_MALLOC _GL_ATTRIBUTE_MALLOC +#define ATTRIBUTE_NOINLINE _GL_ATTRIBUTE_NOINLINE +#define ATTRIBUTE_NONNULL(args) _GL_ATTRIBUTE_NONNULL(args) +#define ATTRIBUTE_NONSTRING _GL_ATTRIBUTE_NONSTRING +#define ATTRIBUTE_NOTHROW _GL_ATTRIBUTE_NOTHROW +#define ATTRIBUTE_PACKED _GL_ATTRIBUTE_PACKED +#define ATTRIBUTE_PURE _GL_ATTRIBUTE_PURE +#define ATTRIBUTE_RETURNS_NONNULL _GL_ATTRIBUTE_RETURNS_NONNULL +#define ATTRIBUTE_SENTINEL(pos) _GL_ATTRIBUTE_SENTINEL(pos) +#define ATTRIBUTE_WARNING(msg) _GL_ATTRIBUTE_WARNING(msg) + +#endif /* _GL_ATTRIBUTE_H */ diff --git a/lib/explicit_bzero.c b/lib/explicit_bzero.c index c82771fb1e3..b1f5acb7771 100644 --- a/lib/explicit_bzero.c +++ b/lib/explicit_bzero.c @@ -25,8 +25,18 @@ # include <config.h> #endif +/* memset_s need this define */ +#if HAVE_MEMSET_S +# define __STDC_WANT_LIB_EXT1__ 1 +#endif + #include <string.h> +#if defined _WIN32 && !defined __CYGWIN__ +# define WIN32_LEAN_AND_MEAN +# include <windows.h> +#endif + #if _LIBC /* glibc-internal users use __explicit_bzero_chk, and explicit_bzero redirects to that. */ @@ -38,8 +48,12 @@ void explicit_bzero (void *s, size_t len) { -#ifdef HAVE_EXPLICIT_MEMSET - explicit_memset (s, 0, len); +#if defined _WIN32 && !defined __CYGWIN__ + (void) SecureZeroMemory (s, len); +#elif HAVE_EXPLICIT_MEMSET + explicit_memset (s, '\0', len); +#elif HAVE_MEMSET_S + (void) memset_s (s, len, '\0', len); #else memset (s, '\0', len); # if defined __GNUC__ && !defined __clang__ diff --git a/lib/gnulib.mk.in b/lib/gnulib.mk.in index 0c7c2fb2b66..5c11dfc95ca 100644 --- a/lib/gnulib.mk.in +++ b/lib/gnulib.mk.in @@ -1122,6 +1122,7 @@ pdfdir = @pdfdir@ prefix = @prefix@ program_transform_name = @program_transform_name@ psdir = @psdir@ +runstatedir = @runstatedir@ sbindir = @sbindir@ sharedstatedir = @sharedstatedir@ srcdir = @srcdir@ @@ -1208,6 +1209,15 @@ endif endif ## end gnulib module at-internal +## begin gnulib module attribute +ifeq (,$(OMIT_GNULIB_MODULE_attribute)) + + +EXTRA_DIST += attribute.h + +endif +## end gnulib module attribute + ## begin gnulib module binary-io ifeq (,$(OMIT_GNULIB_MODULE_binary-io)) diff --git a/lib/ieee754.in.h b/lib/ieee754.in.h index 01ca648905f..d64bb46e9de 100644 --- a/lib/ieee754.in.h +++ b/lib/ieee754.in.h @@ -67,7 +67,7 @@ union ieee754_float #endif /* Little endian. */ } ieee; - /* This format makes it easier to see if a NaN is a signaling NaN. */ + /* This format makes it easier to see if a NaN is a signalling NaN. */ struct { #if __BYTE_ORDER == __BIG_ENDIAN @@ -118,7 +118,7 @@ union ieee754_double #endif /* Little endian. */ } ieee; - /* This format makes it easier to see if a NaN is a signaling NaN. */ + /* This format makes it easier to see if a NaN is a signalling NaN. */ struct { #if __BYTE_ORDER == __BIG_ENDIAN diff --git a/lib/nstrftime.c b/lib/nstrftime.c index fc5052a549c..28b539dc2f2 100644 --- a/lib/nstrftime.c +++ b/lib/nstrftime.c @@ -68,16 +68,9 @@ extern char *tzname[]; #include <string.h> #include <stdbool.h> +#include "attribute.h" #include <intprops.h> -#ifndef FALLTHROUGH -# if __GNUC__ < 7 -# define FALLTHROUGH ((void) 0) -# else -# define FALLTHROUGH __attribute__ ((__fallthrough__)) -# endif -#endif - #ifdef COMPILE_WIDE # include <endian.h> # define CHAR_T wchar_t diff --git a/m4/explicit_bzero.m4 b/m4/explicit_bzero.m4 index 507816affdb..a415e7b4f5e 100644 --- a/m4/explicit_bzero.m4 +++ b/m4/explicit_bzero.m4 @@ -19,4 +19,5 @@ AC_DEFUN([gl_FUNC_EXPLICIT_BZERO], AC_DEFUN([gl_PREREQ_EXPLICIT_BZERO], [ AC_CHECK_FUNCS([explicit_memset]) + AC_CHECK_FUNCS_ONCE([memset_s]) ]) diff --git a/m4/gnulib-common.m4 b/m4/gnulib-common.m4 index b4795c18aeb..b0010d0e351 100644 --- a/m4/gnulib-common.m4 +++ b/m4/gnulib-common.m4 @@ -1,4 +1,4 @@ -# gnulib-common.m4 serial 48 +# gnulib-common.m4 serial 49 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, @@ -15,6 +15,15 @@ AC_DEFUN([gl_COMMON], [ AC_REQUIRE([gl_ZZGNULIB]) ]) AC_DEFUN([gl_COMMON_BODY], [ + AH_VERBATIM([_GL_GNUC_PREREQ], +[/* True if the compiler says it groks GNU C version MAJOR.MINOR. */ +#if defined __GNUC__ && defined __GNUC_MINOR__ +# define _GL_GNUC_PREREQ(major, minor) \ + ((major) < __GNUC__ + ((minor) <= __GNUC_MINOR__)) +#else +# define _GL_GNUC_PREREQ(major, minor) 0 +#endif +]) AH_VERBATIM([_Noreturn], [/* The _Noreturn keyword of C11. */ #ifndef _Noreturn @@ -31,12 +40,12 @@ AC_DEFUN([gl_COMMON_BODY], [ # define _Noreturn [[noreturn]] # elif ((!defined __cplusplus || defined __clang__) \ && (201112 <= (defined __STDC_VERSION__ ? __STDC_VERSION__ : 0) \ - || 4 < __GNUC__ + (7 <= __GNUC_MINOR__) \ + || _GL_GNUC_PREREQ (4, 7) \ || (defined __apple_build_version__ \ ? 6000000 <= __apple_build_version__ \ : 3 < __clang_major__ + (5 <= __clang_minor__)))) /* _Noreturn works as-is. */ -# elif 2 < __GNUC__ + (8 <= __GNUC_MINOR__) || 0x5110 <= __SUNPRO_C +# elif _GL_GNUC_PREREQ (2, 8) || 0x5110 <= __SUNPRO_C # define _Noreturn __attribute__ ((__noreturn__)) # elif 1200 <= (defined _MSC_VER ? _MSC_VER : 0) # define _Noreturn __declspec (noreturn) @@ -55,48 +64,206 @@ AC_DEFUN([gl_COMMON_BODY], [ #if defined __APPLE__ && defined __MACH__ && __APPLE_CC__ >= 5465 && !defined __cplusplus && __STDC_VERSION__ >= 199901L && !defined __GNUC_STDC_INLINE__ # define __GNUC_STDC_INLINE__ 1 #endif]) - AH_VERBATIM([unused_parameter], -[/* Define as a marker that can be attached to declarations that might not - be used. This helps to reduce warnings, such as from - GCC -Wunused-parameter. */ -#if __GNUC__ >= 3 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7) -# define _GL_UNUSED __attribute__ ((__unused__)) + AH_VERBATIM([attribute], +[/* Attributes. */ +#ifdef __has_attribute +# define _GL_HAS_ATTRIBUTE(attr) __has_attribute (__##attr##__) #else -# define _GL_UNUSED +# define _GL_HAS_ATTRIBUTE(attr) _GL_ATTR_##attr +# define _GL_ATTR_alloc_size _GL_GNUC_PREREQ (4, 3) +# define _GL_ATTR_always_inline _GL_GNUC_PREREQ (3, 2) +# define _GL_ATTR_artificial _GL_GNUC_PREREQ (4, 3) +# define _GL_ATTR_cold _GL_GNUC_PREREQ (4, 3) +# define _GL_ATTR_const _GL_GNUC_PREREQ (2, 95) +# define _GL_ATTR_deprecated _GL_GNUC_PREREQ (3, 1) +# define _GL_ATTR_error _GL_GNUC_PREREQ (4, 3) +# define _GL_ATTR_externally_visible _GL_GNUC_PREREQ (4, 1) +# define _GL_ATTR_fallthrough _GL_GNUC_PREREQ (7, 0) +# define _GL_ATTR_format _GL_GNUC_PREREQ (2, 7) +# define _GL_ATTR_leaf _GL_GNUC_PREREQ (4, 6) +# ifdef _ICC +# define _GL_ATTR_may_alias 0 +# else +# define _GL_ATTR_may_alias _GL_GNUC_PREREQ (3, 3) +# endif +# define _GL_ATTR_malloc _GL_GNUC_PREREQ (3, 0) +# define _GL_ATTR_noinline _GL_GNUC_PREREQ (3, 1) +# define _GL_ATTR_nonnull _GL_GNUC_PREREQ (3, 3) +# define _GL_ATTR_nonstring _GL_GNUC_PREREQ (8, 0) +# define _GL_ATTR_nothrow _GL_GNUC_PREREQ (3, 3) +# define _GL_ATTR_packed _GL_GNUC_PREREQ (2, 7) +# define _GL_ATTR_pure _GL_GNUC_PREREQ (2, 96) +# define _GL_ATTR_returns_nonnull _GL_GNUC_PREREQ (4, 9) +# define _GL_ATTR_sentinel _GL_GNUC_PREREQ (4, 0) +# define _GL_ATTR_unused _GL_GNUC_PREREQ (2, 7) +# define _GL_ATTR_warn_unused_result_GL_GNUC_PREREQ (3, 4) #endif -/* The name _UNUSED_PARAMETER_ is an earlier spelling, although the name - is a misnomer outside of parameter lists. */ -#define _UNUSED_PARAMETER_ _GL_UNUSED - -/* gcc supports the "unused" attribute on possibly unused labels, and - g++ has since version 4.5. Note to support C++ as well as C, - _GL_UNUSED_LABEL should be used with a trailing ; */ -#if !defined __cplusplus || __GNUC__ > 4 \ - || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5) -# define _GL_UNUSED_LABEL _GL_UNUSED + +]dnl There is no _GL_ATTRIBUTE_ALIGNED; use stdalign's _Alignas instead. +[ +#if _GL_HAS_ATTRIBUTE (alloc_size) +# define _GL_ATTRIBUTE_ALLOC_SIZE(args) __attribute__ ((__alloc_size__ args)) #else -# define _GL_UNUSED_LABEL +# define _GL_ATTRIBUTE_ALLOC_SIZE(args) #endif -/* The __pure__ attribute was added in gcc 2.96. */ -#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96) -# define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__)) +#if _GL_HAS_ATTRIBUTE (always_inline) +# define _GL_ATTRIBUTE_ALWAYS_INLINE __attribute__ ((__always_inline__)) #else -# define _GL_ATTRIBUTE_PURE /* empty */ +# define _GL_ATTRIBUTE_ALWAYS_INLINE #endif -/* The __const__ attribute was added in gcc 2.95. */ -#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95) +#if _GL_HAS_ATTRIBUTE (artificial) +# define _GL_ATTRIBUTE_ARTIFICIAL __attribute__ ((__artificial__)) +#else +# define _GL_ATTRIBUTE_ARTIFICIAL +#endif + +/* Avoid __attribute__ ((cold)) on MinGW; see thread starting at + <https://lists.gnu.org/r/emacs-devel/2019-04/msg01152.html>. */ +#if _GL_HAS_ATTRIBUTE (cold) && !defined __MINGW32__ +# define _GL_ATTRIBUTE_COLD __attribute__ ((cold)) +#else +# define _GL_ATTRIBUTE_COLD +#endif + +#if _GL_HAS_ATTRIBUTE (const) # define _GL_ATTRIBUTE_CONST __attribute__ ((__const__)) #else -# define _GL_ATTRIBUTE_CONST /* empty */ +# define _GL_ATTRIBUTE_CONST #endif -/* The __malloc__ attribute was added in gcc 3. */ -#if 3 <= __GNUC__ +#if 201710L < __STDC_VERSION__ +# define _GL_ATTRIBUTE_DEPRECATED [[__deprecated__]] +#elif _GL_HAS_ATTRIBUTE (deprecated) +# define _GL_ATTRIBUTE_DEPRECATED __attribute__ ((__deprecated__)) +#else +# define _GL_ATTRIBUTE_DEPRECATED +#endif + +#if _GL_HAS_ATTRIBUTE (error) +# define _GL_ATTRIBUTE_ERROR(msg) __attribute__((__error__ (msg))) +# define _GL_ATTRIBUTE_WARNING(msg) __attribute__((__warning__ (msg))) +#else +# define _GL_ATTRIBUTE_ERROR(msg) +# define _GL_ATTRIBUTE_WARNING(msg) +#endif + +#if _GL_HAS_ATTRIBUTE (externally_visible) +# define _GL_ATTRIBUTE_EXTERNALLY_VISIBLE __attribute__ ((externally_visible)) +#else +# define _GL_ATTRIBUTE_EXTERNALLY_VISIBLE +#endif + +/* FALLTHROUGH is special, because it always expands to something. */ +#if 201710L < __STDC_VERSION__ +# define _GL_ATTRIBUTE_FALLTHROUGH [[__fallthrough__]] +#elif _GL_HAS_ATTRIBUTE (fallthrough) +# define _GL_ATTRIBUTE_FALLTHROUGH __attribute__ ((__fallthrough__)) +#else +# define _GL_ATTRIBUTE_FALLTHROUGH ((void) 0) +#endif + +#if _GL_HAS_ATTRIBUTE (format) +# define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec)) +#else +# define _GL_ATTRIBUTE_FORMAT(spec) +#endif + +#if _GL_HAS_ATTRIBUTE (leaf) +# define _GL_ATTRIBUTE_LEAF __attribute__ ((__leaf__)) +#else +# define _GL_ATTRIBUTE_LEAF +#endif + +#if _GL_HAS_ATTRIBUTE (may_alias) +# define _GL_ATTRIBUTE_MAY_ALIAS __attribute__ ((__may_alias__)) +#else +# define _GL_ATTRIBUTE_MAY_ALIAS +#endif + +#if 201710L < __STDC_VERSION__ +# define _GL_ATTRIBUTE_MAYBE_UNUSED [[__maybe_unused__]] +#elif _GL_HAS_ATTRIBUTE (unused) +# define _GL_ATTRIBUTE_MAYBE_UNUSED __attribute__ ((__unused__)) +#else +# define _GL_ATTRIBUTE_MAYBE_UNUSED +#endif +/* Earlier spellings of this macro. */ +#define _GL_UNUSED _GL_ATTRIBUTE_MAYBE_UNUSED +#define _UNUSED_PARAMETER_ _GL_ATTRIBUTE_MAYBE_UNUSED + +#if _GL_HAS_ATTRIBUTE (malloc) # define _GL_ATTRIBUTE_MALLOC __attribute__ ((__malloc__)) #else -# define _GL_ATTRIBUTE_MALLOC /* empty */ +# define _GL_ATTRIBUTE_MALLOC +#endif + +#if 201710L < __STDC_VERSION__ +# define _GL_ATTRIBUTE_NODISCARD [[__nodiscard__]] +#elif _GL_HAS_ATTRIBUTE (warn_unused_result) +# define _GL_ATTRIBUTE_NODISCARD __attribute__ ((__warn_unused_result__)) +#else +# define _GL_ATTRIBUTE_NODISCARD +#endif + +#if _GL_HAS_ATTRIBUTE (noinline) +# define _GL_ATTRIBUTE_NOINLINE __attribute__ ((__noinline__)) +#else +# define _GL_ATTRIBUTE_NOINLINE +#endif + +#if _GL_HAS_ATTRIBUTE (nonnull) +# define _GL_ATTRIBUTE_NONNULL(args) __attribute__ ((__nonnull__ args)) +#else +# define _GL_ATTRIBUTE_NONNULL(args) +#endif + +#if _GL_HAS_ATTRIBUTE (nonstring) +# define _GL_ATTRIBUTE_NONSTRING __attribute__ ((__nonstring__)) +#else +# define _GL_ATTRIBUTE_NONSTRING +#endif + +/* There is no _GL_ATTRIBUTE_NORETURN; use _Noreturn instead. */ + +#if _GL_HAS_ATTRIBUTE (nothrow) && !defined __cplusplus +# define _GL_ATTRIBUTE_NOTHROW __attribute__ ((__nothrow__)) +#else +# define _GL_ATTRIBUTE_NOTHROW +#endif + +#if _GL_HAS_ATTRIBUTE (packed) +# define _GL_ATTRIBUTE_PACKED __attribute__ ((__packed__)) +#else +# define _GL_ATTRIBUTE_PACKED +#endif + +#if _GL_HAS_ATTRIBUTE (pure) +# define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__)) +#else +# define _GL_ATTRIBUTE_PURE +#endif + +#if _GL_HAS_ATTRIBUTE (returns_nonnull) +# define _GL_ATTRIBUTE_RETURNS_NONNULL __attribute__ ((__returns_nonnull__)) +#else +# define _GL_ATTRIBUTE_RETURNS_NONNULL +#endif + +#if _GL_HAS_ATTRIBUTE (sentinel) +# define _GL_ATTRIBUTE_SENTINEL(pos) __attribute__ ((__sentinel__ pos)) +#else +# define _GL_ATTRIBUTE_SENTINEL(pos) +#endif + +]dnl There is no _GL_ATTRIBUTE_VISIBILITY; see m4/visibility.m4 instead. +[ +/* To support C++ as well as C, use _GL_UNUSED_LABEL with trailing ';'. */ +#if !defined __cplusplus || _GL_GNUC_PREREQ (4, 5) +# define _GL_UNUSED_LABEL _GL_ATTRIBUTE_MAYBE_UNUSED +#else +# define _GL_UNUSED_LABEL #endif ]) AH_VERBATIM([async_safe], diff --git a/m4/gnulib-comp.m4 b/m4/gnulib-comp.m4 index d5faa9a1950..37170247884 100644 --- a/m4/gnulib-comp.m4 +++ b/m4/gnulib-comp.m4 @@ -47,6 +47,7 @@ AC_DEFUN([gl_EARLY], # Code from module alloca-opt: # Code from module allocator: # Code from module at-internal: + # Code from module attribute: # Code from module binary-io: # Code from module builtin-expect: # Code from module byteswap: @@ -934,6 +935,7 @@ AC_DEFUN([gl_FILE_LIST], [ lib/allocator.h lib/arg-nonnull.h lib/at-func.c + lib/attribute.h lib/binary-io.c lib/binary-io.h lib/byteswap.in.h |