Commit 04bc1410 authored by Paul Eggert's avatar Paul Eggert

Merge from Gnulib

This incorporates:
2017-10-29 timespec: prefer ‘assume’ to ‘assure’
2017-10-27 timespec.h: use "assure" to avoid a spurious warning
2017-10-09 getopt-posix: Fix build failure if ac_cv_header_getopt_h=no
* build-aux/config.guess, build-aux/config.sub:
* lib/timespec.h, lib/unistd.in.h:
Copy from Gnulib.
parent 6b08ad52
......@@ -2,7 +2,7 @@
# Attempt to guess a canonical system name.
# Copyright 1992-2017 Free Software Foundation, Inc.
timestamp='2017-09-26'
timestamp='2017-11-01'
# 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
......@@ -479,13 +479,13 @@ case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
#endif
#if defined (host_mips) && defined (MIPSEB)
#if defined (SYSTYPE_SYSV)
printf ("mips-mips-riscos%ssysv\n", argv[1]); exit (0);
printf ("mips-mips-risco0s%ssysv\\n", argv[1]); exit (0);
#endif
#if defined (SYSTYPE_SVR4)
printf ("mips-mips-riscos%ssvr4\n", argv[1]); exit (0);
printf ("mips-mips-riscos%ssvr4\\n", argv[1]); exit (0);
#endif
#if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD)
printf ("mips-mips-riscos%sbsd\n", argv[1]); exit (0);
printf ("mips-mips-riscos%sbsd\\n", argv[1]); exit (0);
#endif
#endif
exit (-1);
......@@ -608,7 +608,7 @@ EOF
*:AIX:*:*)
echo rs6000-ibm-aix
exit ;;
ibmrt:4.4BSD:*|romp-ibm:BSD:*)
ibmrt:4.4BSD:*|romp-ibm:4.4BSD:*)
echo romp-ibm-bsd4.4
exit ;;
ibmrt:*BSD:*|romp-ibm:BSD:*) # covers RT/PC BSD and
......@@ -629,8 +629,8 @@ EOF
9000/[34678]??:HP-UX:*:*)
HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
case "${UNAME_MACHINE}" in
9000/31? ) HP_ARCH=m68000 ;;
9000/[34]?? ) HP_ARCH=m68k ;;
9000/31?) HP_ARCH=m68000 ;;
9000/[34]??) HP_ARCH=m68k ;;
9000/[678][0-9][0-9])
if [ -x /usr/bin/getconf ]; then
sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
......@@ -743,7 +743,7 @@ EOF
{ echo "$SYSTEM_NAME"; exit; }
echo unknown-hitachi-hiuxwe2
exit ;;
9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* )
9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:*)
echo hppa1.1-hp-bsd
exit ;;
9000/8??:4.3bsd:*:*)
......@@ -752,7 +752,7 @@ EOF
*9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*)
echo hppa1.0-hp-mpeix
exit ;;
hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* )
hp7??:OSF1:*:* | hp8?[79]:OSF1:*:*)
echo hppa1.1-hp-osf
exit ;;
hp8??:OSF1:*:*)
......@@ -1072,7 +1072,7 @@ EOF
i*86:*DOS:*:*)
echo ${UNAME_MACHINE}-pc-msdosdjgpp
exit ;;
i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*)
i*86:*:4.*:*)
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}
......
......@@ -2,7 +2,7 @@
# Configuration validation subroutine script.
# Copyright 1992-2017 Free Software Foundation, Inc.
timestamp='2017-09-26'
timestamp='2017-11-01'
# 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
......@@ -640,7 +640,7 @@ case $basic_machine in
basic_machine=rs6000-bull
os=-bosx
;;
dpx2* | dpx2*-bull)
dpx2*)
basic_machine=m68k-bull
os=-sysv3
;;
......@@ -902,7 +902,7 @@ case $basic_machine in
basic_machine=v70-nec
os=-sysv
;;
next | m*-next )
next | m*-next)
basic_machine=m68k-next
case $os in
-nextstep* )
......@@ -1492,7 +1492,7 @@ case $os in
-nova*)
os=-rtmk-nova
;;
-ns2 )
-ns2)
os=-nextstep2
;;
-nsk*)
......@@ -1694,7 +1694,7 @@ case $basic_machine in
m88k-omron*)
os=-luna
;;
*-next )
*-next)
os=-nextstep
;;
*-sequent)
......
......@@ -33,6 +33,8 @@ _GL_INLINE_HEADER_BEGIN
extern "C" {
#endif
#include "verify.h"
/* Resolution of timespec timestamps (in units per second), and log
base 10 of the resolution. */
......@@ -67,23 +69,29 @@ make_timespec (time_t s, long int ns)
any platform of interest to the GNU project, since all such
platforms have 32-bit int or wider.
Replacing "(int) (a.tv_nsec - b.tv_nsec)" with something like
Replacing "a.tv_nsec - b.tv_nsec" with something like
"a.tv_nsec < b.tv_nsec ? -1 : a.tv_nsec > b.tv_nsec" would cause
this function to work in some cases where the above assumption is
violated, but not in all cases (e.g., a.tv_sec==1, a.tv_nsec==-2,
b.tv_sec==0, b.tv_nsec==999999999) and is arguably not worth the
extra instructions. Using a subtraction has the advantage of
detecting some invalid cases on platforms that detect integer
overflow.
The (int) cast avoids a gcc -Wconversion warning. */
overflow. */
_GL_TIMESPEC_INLINE int _GL_ATTRIBUTE_PURE
timespec_cmp (struct timespec a, struct timespec b)
{
return (a.tv_sec < b.tv_sec ? -1
: a.tv_sec > b.tv_sec ? 1
: (int) (a.tv_nsec - b.tv_nsec));
if (a.tv_sec < b.tv_sec)
return -1;
if (a.tv_sec > b.tv_sec)
return 1;
/* Pacify gcc -Wstrict-overflow (bleeding-edge circa 2017-10-02). See:
http://lists.gnu.org/archive/html/bug-gnulib/2017-10/msg00006.html */
assume (-1 <= a.tv_nsec && a.tv_nsec <= 2 * TIMESPEC_RESOLUTION);
assume (-1 <= b.tv_nsec && b.tv_nsec <= 2 * TIMESPEC_RESOLUTION);
return a.tv_nsec - b.tv_nsec;
}
/* Return -1, 0, 1, depending on the sign of A. A.tv_nsec must be
......
......@@ -134,9 +134,8 @@
/* The definition of _GL_WARN_ON_USE is copied here. */
/* Get getopt(), optarg, optind, opterr, optopt.
But avoid namespace pollution on glibc systems. */
#if @GNULIB_UNISTD_H_GETOPT@ && !defined __GLIBC__ && !defined _GL_SYSTEM_GETOPT
/* Get getopt(), optarg, optind, opterr, optopt. */
#if @GNULIB_UNISTD_H_GETOPT@ && !defined _GL_SYSTEM_GETOPT
# include <getopt-cdefs.h>
# include <getopt-pfx-core.h>
#endif
......
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