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Update Gnulib.

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All changes in this commit are autogenerated by running
admin/merge-gnulib.
This commit is contained in:
Philipp Stephani 2020-12-24 16:48:40 +01:00
parent 26b8b30ff4
commit 29064d02c3
62 changed files with 2549 additions and 857 deletions
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221
build-aux/config.guess vendored
View file

@ -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 <config-patches@gnu.org>.
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 <stdarg.h>
/* 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 $(/bin/uname -X | grep "^Machine") in
*486*) UNAME_MACHINE=i486 ;;
*Pentium) UNAME_MACHINE=i586 ;;
*Pent*|*Celeron) UNAME_MACHINE=i686 ;;
@ -1163,10 +1174,10 @@ EOF
exit ;;
i*86:*:3.2:*)
if test -f /usr/options/cb.name; then
UNAME_REL=`sed -n 's/.*Version //p' </usr/options/cb.name`
UNAME_REL=$(sed -n 's/.*Version //p' </usr/options/cb.name)
echo "$UNAME_MACHINE"-pc-isc"$UNAME_REL"
elif /bin/uname -X 2>/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 <<EOF
If $0 has already been updated, send the following data and any
@ -1655,20 +1666,20 @@ provide the necessary information to handle your system.
config.guess timestamp = $timestamp
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`
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"

60
build-aux/config.sub vendored
View file

@ -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*)
;;
-*)

35
build-aux/install-sh
View file

@ -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

65
doc/misc/texinfo.tex
View file

@ -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 @@
}
% 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 @@
% 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 @@
% 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 @@
\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 @@
\endgroup
%
\envdef\verbatim{%
\setupverbatim\doverbatim
\setnormaldispenv\setupverbatim\doverbatim
}
\let\Everbatim = \afterenvbreak
@ -11459,6 +11486,18 @@
\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 @@
\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}%

25
lib/attribute.h
View file

@ -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)
@ -170,19 +170,22 @@
/* 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.) */
/* Applies to: functions. */
#define ATTRIBUTE_PURE _GL_ATTRIBUTE_PURE
/* 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.
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_CONST _GL_ATTRIBUTE_CONST
/* 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_PURE _GL_ATTRIBUTE_PURE
/* The function is rarely executed. */
/* Applies to: functions. */
#define ATTRIBUTE_COLD _GL_ATTRIBUTE_COLD

8
lib/c++defs.h
View file

@ -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

383
lib/canonicalize-lgpl.c
View file

@ -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 <https://www.gnu.org/licenses/>. */
You should have received a copy of the GNU General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#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 <config.h>
# include <libc-config.h>
#endif
#if !HAVE_CANONICALIZE_FILE_NAME || !FUNC_REALPATH_WORKS || defined _LIBC
/* Specification. */
#include <stdlib.h>
#include <alloca.h>
#include <string.h>
#include <unistd.h>
#include <limits.h>
#if HAVE_SYS_PARAM_H || defined _LIBC
# include <sys/param.h>
#endif
#include <sys/stat.h>
#include <errno.h>
#include <limits.h>
#include <stdbool.h>
#include <stddef.h>
#include <string.h>
#include <sys/stat.h>
#include <unistd.h>
#include <scratch_buffer.h>
#ifdef _LIBC
# include <eloop-threshold.h>
# include <shlib-compat.h>
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)
while (true)
{
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;
}
if (n < 0)
buf = NULL;
}
if (buf)
{
if (++num_links > __eloop_threshold ())
{
__set_errno (ELOOP);
goto error;
}
buf = malloca (path_max);
if (!buf)
{
__set_errno (ENOMEM);
goto error;
}
n = __readlink (rpath, buf, path_max - 1);
if (n < 0)
{
int saved_errno = errno;
freea (buf);
__set_errno (saved_errno);
goto error;
}
buf[n] = '\0';
if (!extra_buf)
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)
{
extra_buf = malloca (path_max);
if (!extra_buf)
{
freea (buf);
__set_errno (ENOMEM);
goto error;
}
}
len = strlen (end);
/* Check that n + len + 1 doesn't overflow and is <= path_max. */
if (n >= SIZE_MAX - len || n + len >= path_max)
{
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

22
lib/careadlinkat.c
View file

@ -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 <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93644>."
# 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;

4
lib/cdefs.h
View file

@ -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

4
lib/fcntl.c
View file

@ -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. */

37
lib/fcntl.in.h
View file

@ -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@

14
lib/filemode.c
View file

@ -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))

7
lib/fpending.c
View file

@ -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);

33
lib/free.c Normal file
View file

@ -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 <https://www.gnu.org/licenses/>. */
/* written by Paul Eggert */
#include <config.h>
#include <stdlib.h>
#include <errno.h>
void
rpl_free (void *p)
#undef free
{
int err = errno;
free (p);
errno = err;
}

93
lib/gnulib.mk.in
View file

@ -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' \

113
lib/idx.h Normal file
View file

@ -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 <https://www.gnu.org/licenses/>. */
#ifndef _IDX_H
#define _IDX_H
/* Get ptrdiff_t. */
#include <stddef.h>
/* Get PTRDIFF_MAX. */
#include <stdint.h>
/* 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
<https://clang.llvm.org/docs/LanguageExtensions.html#extended-integer-types>,
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 */

50
lib/intprops.h
View file

@ -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 <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98269>. */
#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 */

135
lib/malloc/scratch_buffer.h Normal file
View file

@ -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
<https://www.gnu.org/licenses/>. */
#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 <stdbool.h>
#include <stddef.h>
#include <stdlib.h>
/* 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 */

56
lib/malloc/scratch_buffer_grow.c Normal file
View file

@ -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
<https://www.gnu.org/licenses/>. */
#ifndef _LIBC
# include <libc-config.h>
#endif
#include <scratch_buffer.h>
#include <errno.h>
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)

67
lib/malloc/scratch_buffer_grow_preserve.c Normal file
View file

@ -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
<https://www.gnu.org/licenses/>. */
#ifndef _LIBC
# include <libc-config.h>
#endif
#include <scratch_buffer.h>
#include <errno.h>
#include <string.h>
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)

64
lib/malloc/scratch_buffer_set_array_size.c Normal file
View file

@ -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
<https://www.gnu.org/licenses/>. */
#ifndef _LIBC
# include <libc-config.h>
#endif
#include <scratch_buffer.h>
#include <errno.h>
#include <limits.h>
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)

136
lib/rawmemchr.c Normal file
View file

@ -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 <https://www.gnu.org/licenses/>. */
#include <config.h>
/* Specification. */
#include <string.h>
/* 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;
}

28
lib/rawmemchr.valgrind Normal file
View file

@ -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 <https://www.gnu.org/licenses/>.
# This use is OK because it provides only a speedup.
{
rawmemchr-value4
Memcheck:Value4
fun:rawmemchr
}
{
rawmemchr-value8
Memcheck:Value8
fun:rawmemchr
}

48
lib/readlink.c
View file

@ -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 */

47
lib/readlinkat.c
View file

@ -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

19
lib/regex_internal.c
View file

@ -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;

8
lib/regex_internal.h
View file

@ -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

29
lib/scratch_buffer.h Normal file
View file

@ -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 <https://www.gnu.org/licenses/>. */
/* Written by Paul Eggert, 2017. */
#ifndef _GL_SCRATCH_BUFFER_H
#define _GL_SCRATCH_BUFFER_H
#include <libc-config.h>
#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 <malloc/scratch_buffer.h>
#endif /* _GL_SCRATCH_BUFFER_H */

6
lib/signal.in.h
View file

@ -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 <pthread.h>, not in <signal.h>.
/* 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 <pthread.h>, not in <signal.h>.
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 <pthread.h>
#endif

5
lib/stdint.in.h
View file

@ -579,11 +579,6 @@ typedef int _verify_intmax_size[sizeof (intmax_t) == sizeof (uintmax_t)
<wchar.h> -> <stdio.h> -> <getopt.h> -> <stdlib.h>, and the latter includes
<stdint.h> 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: <stddef.h>, <stdio.h> and <time.h> must be
included before <wchar.h>. */
# include <stddef.h>
# include <stdio.h>
# include <time.h>
# define _GL_JUST_INCLUDE_SYSTEM_WCHAR_H
# include <wchar.h>
# undef _GL_JUST_INCLUDE_SYSTEM_WCHAR_H

2
lib/stdio-impl.h
View file

@ -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

183
lib/stdio.in.h
View file

@ -70,29 +70,43 @@
# endif
#endif
/* _GL_ATTRIBUTE_FORMAT_PRINTF
/* 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_SPEC_PRINTF_STANDARD __gnu_printf__
#else
# define _GL_ATTRIBUTE_SPEC_PRINTF_STANDARD __printf__
#endif
/* 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_SPEC_PRINTF_SYSTEM _GL_ATTRIBUTE_SPEC_PRINTF_STANDARD
#else
# 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. */
#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))
#else
# define _GL_ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \
_GL_ATTRIBUTE_FORMAT ((__printf__, formatstring_parameter, first_argument))
#endif
#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,
/* _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. */
#if GNULIB_PRINTF_ATTRIBUTE_FLAVOR_GNU
# define _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM(formatstring_parameter, first_argument) \
_GL_ATTRIBUTE_FORMAT_PRINTF (formatstring_parameter, first_argument)
#else
# define _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM(formatstring_parameter, first_argument) \
_GL_ATTRIBUTE_FORMAT ((__printf__, formatstring_parameter, first_argument))
#endif
#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,
@ -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,

169
lib/stdlib.in.h
View file

@ -53,8 +53,8 @@
# include <sys/loadavg.h>
#endif
/* Native Windows platforms declare mktemp() in <io.h>. */
#if 0 && (defined _WIN32 && ! defined __CYGWIN__)
/* Native Windows platforms declare _mktemp() in <io.h>. */
#if defined _WIN32 && !defined __CYGWIN__
# include <io.h>
#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@

36
lib/string.in.h
View file

@ -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. */

9
lib/sys_select.in.h
View file

@ -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 <sys/select.h>, too. In addition,
if <sys/param.h> is included, <types.h> -> <sys/types.h> -> <sys/select.h>
are included. Then <signal.h> -> <pthread.h> are included by GNULIB. By the
way, <pthread.h> requires PAGE_SIZE defined in <sys/param.h>. However,
<sys/param.h> has not been processed, yet. As a result, 'PAGE_SIZE'
undeclared error occurs in <pthread.h>.
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 <signal.h>
#endif

32
lib/sys_stat.in.h
View file

@ -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@

49
lib/tempname.c
View file

@ -47,9 +47,11 @@
#include <string.h>
#include <fcntl.h>
#include <stdalign.h>
#include <stdint.h>
#include <sys/random.h>
#include <sys/stat.h>
#include <time.h>
#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 <random-bits.h>
# 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;

23
lib/time.in.h
View file

@ -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

16
lib/time_rz.c
View file

@ -27,19 +27,15 @@
#include <time.h>
#include <errno.h>
#include <limits.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#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
{

386
lib/unistd.in.h
View file

@ -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
<io.h> and/or <direct.h>, not in <unistd.h>.
They also declare access(), chmod(), close(), dup(), dup2(), isatty(),
lseek(), read(), unlink(), write() in <io.h>. */
#if ((@GNULIB_CHDIR@ || @GNULIB_GETCWD@ || @GNULIB_RMDIR@ \
|| defined GNULIB_POSIXCHECK) \
&& (defined _WIN32 && ! defined __CYGWIN__))
# include <io.h> /* mingw32, mingw64 */
# include <direct.h> /* 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 <io.h>. */
#if defined _WIN32 && !defined __CYGWIN__
# include <io.h>
# include <direct.h>
#endif
/* Native Windows platforms declare _execl*, _execv* in <process.h>. */
#if defined _WIN32 && !defined __CYGWIN__
# include <process.h>
#endif
/* AIX and OSF/1 5.1 declare getdomainname in <netdb.h>, not in <unistd.h>.
@ -138,11 +136,8 @@
/* MSVC defines off_t in <sys/types.h>.
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 <sys/types.h>
#endif
/* Get off_t, ssize_t, mode_t. */
#include <sys/types.h>
/* 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 <unistd.h> - "
"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

2
lib/xalloc-oversized.h
View file

@ -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__

4
m4/alloca.m4
View file

@ -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
])

160
m4/extensions.m4
View file

@ -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 <wchar.h>
mbstate_t x;]])],
[],
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[
#define _XOPEN_SOURCE 500
#include <wchar.h>
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 <wchar.h>
mbstate_t x;]])],
[],
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[
#define _XOPEN_SOURCE 500
#include <wchar.h>
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])
])

52
m4/fcntl.m4
View file

@ -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 <fcntl.h>
#ifndef F_DUPFD_CLOEXEC
choke me
#endif
]])],
[AC_RUN_IFELSE(
[AC_LANG_SOURCE(
[[#include <fcntl.h>
#include <unistd.h>
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.

3
m4/filemode.m4
View file

@ -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])
])

49
m4/free.m4 Normal file
View file

@ -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 <https://sourceware.org/bugzilla/show_bug.cgi?id=17924>
dnl * OpenBSD >= 4.5, thanks to this commit:
dnl <https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/lib/libc/stdlib/malloc.c.diff?r1=1.100&r2=1.101&f=h>
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 <stdlib.h>
]],
[[#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], [:])

3
m4/fsusage.m4
View file

@ -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

63
m4/gnulib-common.m4
View file

@ -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
# <https://lists.gnu.org/r/bug-gnulib/2011-09/msg00367.html>,
# but many more packages use AC_PROG_CC_STDC than AC_PROG_CC_C99
# <https://lists.gnu.org/r/bug-gnulib/2011-09/msg00441.html>.
# Remaining problems:
# - When AC_PROG_CC_STDC is invoked twice, it adds the C99 enabling options
# to CC twice
# <https://lists.gnu.org/r/bug-gnulib/2011-09/msg00431.html>.
# - 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

92
m4/gnulib-comp.m4
View file

@ -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

2
m4/largefile.m4
View file

@ -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
# -------------------------------

11
m4/mbstate_t.m4
View file

@ -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: <stdio.h> must be included before
<wchar.h>.
BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
included before <wchar.h>. */
#include <stddef.h>
#include <stdio.h>
#include <time.h>
#include <wchar.h>]],
#include <wchar.h>]],
[[mbstate_t x; return sizeof x;]])],
[ac_cv_type_mbstate_t=yes],
[ac_cv_type_mbstate_t=no])])

38
m4/pid_t.m4 Normal file
View file

@ -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 <https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/spawnvp-wspawnvp>
dnl and the argument type of the _cwait function
dnl <https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/cwait>.
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

20
m4/rawmemchr.m4 Normal file
View file

@ -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 <string.h> 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], [:])

61
m4/readlink.m4
View file

@ -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 <unistd.h>
]], [[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 <unistd.h>
]], [[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
])

13
m4/readlinkat.m4
View file

@ -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

5
m4/std-gnu11.m4
View file

@ -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

10
m4/stdint.m4
View file

@ -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 <inttypes.h>.
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 <sys/types.h>.
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: <stddef.h>, <stdio.h> and <time.h> must be
included before <wchar.h>. */
#include <stddef.h>
#include <signal.h>
#if HAVE_WCHAR_H
# include <stdio.h>
# include <time.h>
# include <wchar.h>
#endif
]])

8
m4/stdio_h.m4
View file

@ -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])

36
m4/stdlib_h.m4
View file

@ -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 <random.h>
#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])

22
m4/sys_types_h.m4
View file

@ -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 <https://lists.gnu.org/r/autoconf/2016-08/msg00014.html>
# 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
<mkdev.h>.])])
[AC_DEFINE([MAJOR_IN_MKDEV], [1],
[Define to 1 if `major', `minor', and `makedev' are
declared in <mkdev.h>.])])
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
<sysmacros.h>.])])
[AC_DEFINE([MAJOR_IN_SYSMACROS], [1],
[Define to 1 if `major', `minor', and `makedev'
are declared in <sysmacros.h>.])])
fi
])
])# AC_HEADER_MAJOR
])

11
m4/unistd_h.m4
View file

@ -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 <io.h>
# 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])

14
m4/vararrays.m4
View file

@ -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
])
])