From: Paul Eggert Date: Tue, 11 Sep 2018 04:16:03 +0000 (-0700) Subject: Update from Gnulib X-Git-Tag: emacs-27.0.90~4436 X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=fc389d3a836c11893ac5c5894915e9b8b4868799;p=emacs.git Update from Gnulib This incorporates: 2018-09-10 timespec: fix resolution confusion 2018-09-09 mktime: simplify in prep for glibc merge 2018-09-07 intprops: minor clarification of code 2018-09-06 stddef: Override max_align_t on NetBSD 8.0/x86 2018-09-06 fcntl: Fix F_DUPFD_CLOEXEC behaviour on Haiku 2018-09-06 strtoll, strtoull: Rely on limits-h module 2018-09-06 limits-h: Provide numerical limits macros 2018-09-06 fcntl: Don't access nonexistent optional argument 2018-09-02 mktime: fix unlikely race+overflow bug 2018-08-31 mktime, timegm: simplify glibc time64_t 2018-08-31 mktime, timegm: simplify merge to glibc * build-aux/config.guess, build-aux/config.sub: * lib/dtotimespec.c, lib/fcntl.c, lib/intprops.h: * lib/limits.in.h, lib/mktime-internal.h, lib/mktime.c: * lib/stat-time.h, lib/strtol.c, lib/timegm.c: * lib/timespec-add.c, lib/timespec-sub.c, lib/timespec.h: * lib/utimens.c, m4/limits-h.m4, m4/stddef_h.m4: Copy from Gnulib. --- diff --git a/build-aux/config.guess b/build-aux/config.guess index d4fb3213ec7..b33c9e890e0 100755 --- a/build-aux/config.guess +++ b/build-aux/config.guess @@ -2,7 +2,7 @@ # Attempt to guess a canonical system name. # Copyright 1992-2018 Free Software Foundation, Inc. -timestamp='2018-08-02' +timestamp='2018-08-29' # 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 @@ -838,7 +838,7 @@ EOF *:BSD/OS:*:*) echo "$UNAME_MACHINE"-unknown-bsdi"$UNAME_RELEASE" exit ;; - arm*:FreeBSD:*:*) + arm:FreeBSD:*:*) UNAME_PROCESSOR=`uname -p` set_cc_for_build if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \ diff --git a/build-aux/config.sub b/build-aux/config.sub index 49b16732eb6..b51fb8cdb69 100755 --- a/build-aux/config.sub +++ b/build-aux/config.sub @@ -2,7 +2,7 @@ # Configuration validation subroutine script. # Copyright 1992-2018 Free Software Foundation, Inc. -timestamp='2018-08-24' +timestamp='2018-08-29' # 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 @@ -639,194 +639,162 @@ case $1 in ;; esac -# Decode aliases for certain CPU-COMPANY combinations. +# Decode 1-component or ad-hoc basic machines case $basic_machine in # Here we handle the default manufacturer of certain CPU types. It is in # some cases the only manufacturer, in others, it is the most popular. - craynv) - basic_machine=craynv-cray - os=${os:-unicosmp} - ;; - fx80) - basic_machine=fx80-alliant - ;; w89k) - basic_machine=hppa1.1-winbond + cpu=hppa1.1 + vendor=winbond ;; op50n) - basic_machine=hppa1.1-oki + cpu=hppa1.1 + vendor=oki ;; op60c) - basic_machine=hppa1.1-oki - ;; - romp) - basic_machine=romp-ibm - ;; - mmix) - basic_machine=mmix-knuth - ;; - rs6000) - basic_machine=rs6000-ibm + cpu=hppa1.1 + vendor=oki ;; - vax) - basic_machine=vax-dec - ;; - pdp11) - basic_machine=pdp11-dec - ;; - we32k) - basic_machine=we32k-att - ;; - cydra) - basic_machine=cydra-cydrome - ;; - i370-ibm* | ibm*) - basic_machine=i370-ibm - ;; - orion) - basic_machine=orion-highlevel + ibm*) + cpu=i370 + vendor=ibm ;; orion105) - basic_machine=clipper-highlevel + cpu=clipper + vendor=highlevel ;; mac | mpw | mac-mpw) - basic_machine=m68k-apple - ;; - microblaze | microblazeel) - basic_machine=$basic_machine-xilinx + cpu=m68k + vendor=apple ;; pmac | pmac-mpw) - basic_machine=powerpc-apple - ;; - xps | xps100) - basic_machine=xps100-honeywell + cpu=powerpc + vendor=apple ;; # Recognize the various machine names and aliases which stand # for a CPU type and a company and sometimes even an OS. 3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc) - basic_machine=m68000-att + cpu=m68000 + vendor=att ;; 3b*) - basic_machine=we32k-att - ;; - blackfin-*) - basic_machine=bfin-`echo "$basic_machine" | sed 's/^[^-]*-//'` - os=linux + cpu=we32k + vendor=att ;; bluegene*) - basic_machine=powerpc-ibm + cpu=powerpc + vendor=ibm os=cnk ;; - c54x-*) - basic_machine=tic54x-`echo "$basic_machine" | sed 's/^[^-]*-//'` - ;; - c55x-*) - basic_machine=tic55x-`echo "$basic_machine" | sed 's/^[^-]*-//'` - ;; - c6x-*) - basic_machine=tic6x-`echo "$basic_machine" | sed 's/^[^-]*-//'` - ;; - c90) - basic_machine=c90-cray - os=${os:-unicos} - ;; decsystem10* | dec10*) - basic_machine=pdp10-dec + cpu=pdp10 + vendor=dec os=tops10 ;; decsystem20* | dec20*) - basic_machine=pdp10-dec + cpu=pdp10 + vendor=dec os=tops20 ;; delta | 3300 | motorola-3300 | motorola-delta \ | 3300-motorola | delta-motorola) - basic_machine=m68k-motorola - ;; - dpx20 | dpx20-*) - basic_machine=rs6000-bull - os=${os:-bosx} + cpu=m68k + vendor=motorola ;; dpx2*) - basic_machine=m68k-bull + cpu=m68k + vendor=bull os=sysv3 ;; - e500v[12]) - basic_machine=powerpc-unknown - os=$os"spe" - ;; - e500v[12]-*) - basic_machine=powerpc-`echo "$basic_machine" | sed 's/^[^-]*-//'` - os=$os"spe" - ;; encore | umax | mmax) - basic_machine=ns32k-encore + cpu=ns32k + vendor=encore ;; elxsi) - basic_machine=elxsi-elxsi + cpu=elxsi + vendor=elxsi os=${os:-bsd} ;; fx2800) - basic_machine=i860-alliant + cpu=i860 + vendor=alliant ;; genix) - basic_machine=ns32k-ns + cpu=ns32k + vendor=ns ;; h3050r* | hiux*) - basic_machine=hppa1.1-hitachi + cpu=hppa1.1 + vendor=hitachi os=hiuxwe2 ;; hp3k9[0-9][0-9] | hp9[0-9][0-9]) - basic_machine=hppa1.0-hp + cpu=hppa1.0 + vendor=hp ;; hp9k2[0-9][0-9] | hp9k31[0-9]) - basic_machine=m68000-hp + cpu=m68000 + vendor=hp ;; hp9k3[2-9][0-9]) - basic_machine=m68k-hp + cpu=m68k + vendor=hp ;; hp9k6[0-9][0-9] | hp6[0-9][0-9]) - basic_machine=hppa1.0-hp + cpu=hppa1.0 + vendor=hp ;; hp9k7[0-79][0-9] | hp7[0-79][0-9]) - basic_machine=hppa1.1-hp + cpu=hppa1.1 + vendor=hp ;; hp9k78[0-9] | hp78[0-9]) # FIXME: really hppa2.0-hp - basic_machine=hppa1.1-hp + cpu=hppa1.1 + vendor=hp ;; hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893) # FIXME: really hppa2.0-hp - basic_machine=hppa1.1-hp + cpu=hppa1.1 + vendor=hp ;; hp9k8[0-9][13679] | hp8[0-9][13679]) - basic_machine=hppa1.1-hp + cpu=hppa1.1 + vendor=hp ;; hp9k8[0-9][0-9] | hp8[0-9][0-9]) - basic_machine=hppa1.0-hp + cpu=hppa1.0 + vendor=hp ;; i*86v32) - basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'` + cpu=`echo "$1" | sed -e 's/86.*/86/'` + vendor=pc os=sysv32 ;; i*86v4*) - basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'` + cpu=`echo "$1" | sed -e 's/86.*/86/'` + vendor=pc os=sysv4 ;; i*86v) - basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'` + cpu=`echo "$1" | sed -e 's/86.*/86/'` + vendor=pc os=sysv ;; i*86sol2) - basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'` + cpu=`echo "$1" | sed -e 's/86.*/86/'` + vendor=pc os=solaris2 ;; j90 | j90-cray) - basic_machine=j90-cray + cpu=j90 + vendor=cray os=${os:-unicos} ;; iris | iris4d) - basic_machine=mips-sgi + cpu=mips + vendor=sgi case $os in irix*) ;; @@ -835,35 +803,23 @@ case $basic_machine in ;; esac ;; - leon-*|leon[3-9]-*) - basic_machine=sparc-`echo "$basic_machine" | sed 's/-.*//'` - ;; - m68knommu-*) - basic_machine=m68k-`echo "$basic_machine" | sed 's/^[^-]*-//'` - os=linux - ;; miniframe) - basic_machine=m68000-convergent + cpu=m68000 + vendor=convergent ;; *mint | mint[0-9]* | *MiNT | *MiNT[0-9]*) - basic_machine=m68k-atari + cpu=m68k + vendor=atari os=mint ;; - mips3*-*) - basic_machine=`echo "$basic_machine" | sed -e 's/mips3/mips64/'` - ;; - mips3*) - basic_machine=`echo "$basic_machine" | sed -e 's/mips3/mips64/'`-unknown - ;; - ms1-*) - basic_machine=`echo "$basic_machine" | sed -e 's/ms1-/mt-/'` - ;; news-3600 | risc-news) - basic_machine=mips-sony + cpu=mips + vendor=sony os=newsos ;; next | m*-next) - basic_machine=m68k-next + cpu=m68k + vendor=next case $os in nextstep* ) ;; @@ -876,441 +832,437 @@ case $basic_machine in esac ;; np1) - basic_machine=np1-gould + cpu=np1 + vendor=gould ;; op50n-* | op60c-*) - basic_machine=hppa1.1-oki + cpu=hppa1.1 + vendor=oki os=proelf ;; - openrisc | openrisc-*) - basic_machine=or32-unknown - ;; pa-hitachi) - basic_machine=hppa1.1-hitachi + cpu=hppa1.1 + vendor=hitachi os=hiuxwe2 ;; - parisc-*) - basic_machine=hppa-`echo "$basic_machine" | sed 's/^[^-]*-//'` - os=linux - ;; pbd) - basic_machine=sparc-tti + cpu=sparc + vendor=tti ;; pbb) - basic_machine=m68k-tti + cpu=m68k + vendor=tti ;; - pc532 | pc532-*) - basic_machine=ns32k-pc532 + pc532) + cpu=ns32k + vendor=pc532 ;; - pc98-*) - basic_machine=i386-`echo "$basic_machine" | sed 's/^[^-]*-//'` + pn) + cpu=pn + vendor=gould ;; - pentium | p5 | k5 | k6 | nexgen | viac3) - basic_machine=i586-pc + power) + cpu=power + vendor=ibm ;; - pentiumpro | p6 | 6x86 | athlon | athlon_*) - basic_machine=i686-pc + ps2) + cpu=i386 + vendor=ibm ;; - pentiumii | pentium2 | pentiumiii | pentium3) - basic_machine=i686-pc + rm[46]00) + cpu=mips + vendor=siemens ;; - pentium4) - basic_machine=i786-pc + rtpc | rtpc-*) + cpu=romp + vendor=ibm ;; - pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*) - basic_machine=i586-`echo "$basic_machine" | sed 's/^[^-]*-//'` + sde) + cpu=mipsisa32 + vendor=sde + os=${os:-elf} ;; - pentiumpro-* | p6-* | 6x86-* | athlon-*) - basic_machine=i686-`echo "$basic_machine" | sed 's/^[^-]*-//'` + simso-wrs) + cpu=sparclite + vendor=wrs + os=vxworks ;; - pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*) - basic_machine=i686-`echo "$basic_machine" | sed 's/^[^-]*-//'` + tower | tower-32) + cpu=m68k + vendor=ncr ;; - pentium4-*) - basic_machine=i786-`echo "$basic_machine" | sed 's/^[^-]*-//'` + vpp*|vx|vx-*) + cpu=f301 + vendor=fujitsu ;; - pn) - basic_machine=pn-gould + w65) + cpu=w65 + vendor=wdc ;; - power) basic_machine=power-ibm + w89k-*) + cpu=hppa1.1 + vendor=winbond + os=proelf ;; - ppc | ppcbe) basic_machine=powerpc-unknown + none) + cpu=none + vendor=none ;; - ppc-* | ppcbe-*) - basic_machine=powerpc-`echo "$basic_machine" | sed 's/^[^-]*-//'` + leon|leon[3-9]) + cpu=sparc + vendor=$basic_machine ;; - ppcle | powerpclittle) - basic_machine=powerpcle-unknown + leon-*|leon[3-9]-*) + cpu=sparc + vendor=`echo "$basic_machine" | sed 's/-.*//'` ;; - ppcle-* | powerpclittle-*) - basic_machine=powerpcle-`echo "$basic_machine" | sed 's/^[^-]*-//'` + + *-*) + IFS="-" read -r cpu vendor <&2 - exit 1 + # Recognize the cannonical CPU types that are allowed with any + # company name. + case $cpu in + 1750a | 580 \ + | a29k \ + | aarch64 | aarch64_be \ + | abacus \ + | alpha | alphaev[4-8] | alphaev56 | alphaev6[78] \ + | alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] \ + | alphapca5[67] | alpha64pca5[67] \ + | am33_2.0 \ + | arc | arceb \ + | arm | arm[lb]e | arme[lb] | armv* \ + | avr | avr32 \ + | asmjs \ + | ba \ + | be32 | be64 \ + | bfin | bs2000 \ + | c[123]* | c30 | [cjt]90 | c4x \ + | c8051 | clipper | craynv | csky | cydra \ + | d10v | d30v | dlx | dsp16xx \ + | e2k | elxsi | epiphany \ + | f30[01] | f700 | fido | fr30 | frv | ft32 | fx80 \ + | h8300 | h8500 \ + | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \ + | hexagon \ + | i370 | i*86 | i860 | i960 | ia16 | ia64 \ + | ip2k | iq2000 \ + | k1om \ + | le32 | le64 \ + | lm32 \ + | m32c | m32r | m32rle \ + | m5200 | m68000 | m680[012346]0 | m68360 | m683?2 | m68k | v70 | w65 \ + | m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | nvptx | picochip \ + | m88110 | m88k | maxq | mb | mcore | mep | metag \ + | microblaze | microblazeel \ + | mips | mipsbe | mipseb | mipsel | mipsle \ + | mips16 \ + | mips64 | mips64el \ + | mips64octeon | mips64octeonel \ + | mips64orion | mips64orionel \ + | mips64r5900 | mips64r5900el \ + | mips64vr | mips64vrel \ + | mips64vr4100 | mips64vr4100el \ + | mips64vr4300 | mips64vr4300el \ + | mips64vr5000 | mips64vr5000el \ + | mips64vr5900 | mips64vr5900el \ + | mipsisa32 | mipsisa32el \ + | mipsisa32r2 | mipsisa32r2el \ + | mipsisa32r6 | mipsisa32r6el \ + | mipsisa64 | mipsisa64el \ + | mipsisa64r2 | mipsisa64r2el \ + | mipsisa64r6 | mipsisa64r6el \ + | mipsisa64sb1 | mipsisa64sb1el \ + | mipsisa64sr71k | mipsisa64sr71kel \ + | mipsr5900 | mipsr5900el \ + | mipstx39 | mipstx39el \ + | mmix \ + | mn10200 | mn10300 \ + | moxie \ + | mt \ + | msp430 \ + | nds32 | nds32le | nds32be \ + | nfp \ + | nios | nios2 | nios2eb | nios2el \ + | none | np1 | ns16k | ns32k \ + | open8 \ + | or1k* \ + | or32 \ + | orion \ + | pdp10 | pdp11 | pj | pjl | pn | power \ + | powerpc | powerpc64 | powerpc64le | powerpcle | powerpcspe \ + | pru \ + | pyramid \ + | riscv | riscv32 | riscv64 \ + | rl78 | romp | rs6000 | rx \ + | score \ + | sh | sh[1234] | sh[24]a | sh[24]ae[lb] | sh[23]e | she[lb] | sh[lb]e \ + | sh[1234]e[lb] | sh[12345][lb]e | sh[23]ele | sh64 | sh64le \ + | sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet \ + | sparclite \ + | sparcv8 | sparcv9 | sparcv9b | sparcv9v | sv1 | sx* \ + | spu \ + | tahoe \ + | tic30 | tic4x | tic54x | tic55x | tic6x | tic80 \ + | tron \ + | ubicom32 \ + | v850 | v850e | v850e1 | v850es | v850e2 | v850e2v3 \ + | vax \ + | visium \ + | wasm32 \ + | we32k \ + | x86 | x86_64 | xc16x | xgate | xps100 \ + | xstormy16 | xtensa* \ + | ymp \ + | z8k | z80) + ;; + + *) + echo Invalid configuration \`"$1"\': machine \`"$cpu-$vendor"\' not recognized 1>&2 + exit 1 + ;; + esac ;; esac # Here we canonicalize certain aliases for manufacturers. -case $basic_machine in - *-digital*) - basic_machine=`echo "$basic_machine" | sed 's/digital.*/dec/'` +case $vendor in + digital*) + vendor=dec ;; - *-commodore*) - basic_machine=`echo "$basic_machine" | sed 's/commodore.*/cbm/'` + commodore*) + vendor=cbm ;; *) ;; @@ -1412,8 +1364,8 @@ case $os in # Remember, each alternative MUST END IN *, to match a version number. ;; qnx*) - case $basic_machine in - x86-* | i*86-*) + case $cpu in + x86 | i*86) ;; *) os=nto-$os @@ -1539,7 +1491,7 @@ case $os in # Until real need of OS specific support for # particular features comes up, bare metal # configurations are quite functional. - case $basic_machine in + case $cpu in arm*) os=eabi ;; @@ -1573,7 +1525,7 @@ else # will signal an error saying that MANUFACTURER isn't an operating # system, and we'll never get to this point. -case $basic_machine in +case $cpu-$vendor in score-*) os=elf ;; @@ -1754,9 +1706,8 @@ fi # Here we handle the case where we know the os, and the CPU type, but not the # manufacturer. We pick the logical manufacturer. -vendor=unknown -case $basic_machine in - *-unknown) +case $vendor in + unknown) case $os in riscix*) vendor=acorn @@ -1825,11 +1776,10 @@ case $basic_machine in vendor=stratus ;; esac - basic_machine=`echo "$basic_machine" | sed "s/unknown/$vendor/"` ;; esac -echo "$basic_machine-$os" +echo "$cpu-$vendor-$os" exit # Local variables: diff --git a/lib/dtotimespec.c b/lib/dtotimespec.c index 599f7427a9b..dcbd28051cf 100644 --- a/lib/dtotimespec.c +++ b/lib/dtotimespec.c @@ -32,20 +32,20 @@ dtotimespec (double sec) if (! (TYPE_MINIMUM (time_t) < sec)) return make_timespec (TYPE_MINIMUM (time_t), 0); else if (! (sec < 1.0 + TYPE_MAXIMUM (time_t))) - return make_timespec (TYPE_MAXIMUM (time_t), TIMESPEC_RESOLUTION - 1); + return make_timespec (TYPE_MAXIMUM (time_t), TIMESPEC_HZ - 1); else { time_t s = sec; - double frac = TIMESPEC_RESOLUTION * (sec - s); + double frac = TIMESPEC_HZ * (sec - s); long ns = frac; ns += ns < frac; - s += ns / TIMESPEC_RESOLUTION; - ns %= TIMESPEC_RESOLUTION; + s += ns / TIMESPEC_HZ; + ns %= TIMESPEC_HZ; if (ns < 0) { s--; - ns += TIMESPEC_RESOLUTION; + ns += TIMESPEC_HZ; } return make_timespec (s, ns); diff --git a/lib/fcntl.c b/lib/fcntl.c index be6583565b4..8e976173c0b 100644 --- a/lib/fcntl.c +++ b/lib/fcntl.c @@ -329,6 +329,12 @@ rpl_fcntl (int fd, int action, /* arg */...) result = dupfd (fd, target, O_CLOEXEC); break; #else /* HAVE_FCNTL */ +# if defined __HAIKU__ + /* 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. */ +# define have_dupfd_cloexec -1 +# else /* Try the system call first, if the headers claim it exists (that is, if GNULIB_defined_F_DUPFD_CLOEXEC is 0), since we may be running with a glibc that has the macro but with an @@ -343,10 +349,10 @@ rpl_fcntl (int fd, int action, /* arg */...) if (0 <= result || errno != EINVAL) { have_dupfd_cloexec = 1; -# if REPLACE_FCHDIR +# if REPLACE_FCHDIR if (0 <= result) result = _gl_register_dup (fd, result); -# endif +# endif } else { @@ -357,6 +363,7 @@ rpl_fcntl (int fd, int action, /* arg */...) } } else +# endif result = rpl_fcntl (fd, F_DUPFD, target); if (0 <= result && have_dupfd_cloexec == -1) { @@ -405,8 +412,183 @@ rpl_fcntl (int fd, int action, /* arg */...) default: { #if HAVE_FCNTL - void *p = va_arg (arg, void *); - result = fcntl (fd, action, p); + switch (action) + { + #ifdef F_BARRIERFSYNC /* macOS */ + case F_BARRIERFSYNC: + #endif + #ifdef F_CHKCLEAN /* macOS */ + case F_CHKCLEAN: + #endif + #ifdef F_CLOSEM /* NetBSD, HP-UX */ + case F_CLOSEM: + #endif + #ifdef F_FLUSH_DATA /* macOS */ + case F_FLUSH_DATA: + #endif + #ifdef F_FREEZE_FS /* macOS */ + case F_FREEZE_FS: + #endif + #ifdef F_FULLFSYNC /* macOS */ + case F_FULLFSYNC: + #endif + #ifdef F_GETCONFINED /* macOS */ + case F_GETCONFINED: + #endif + #ifdef F_GETDEFAULTPROTLEVEL /* macOS */ + case F_GETDEFAULTPROTLEVEL: + #endif + #ifdef F_GETFD /* POSIX */ + case F_GETFD: + #endif + #ifdef F_GETFL /* POSIX */ + case F_GETFL: + #endif + #ifdef F_GETLEASE /* Linux */ + case F_GETLEASE: + #endif + #ifdef F_GETNOSIGPIPE /* macOS */ + case F_GETNOSIGPIPE: + #endif + #ifdef F_GETOWN /* POSIX */ + case F_GETOWN: + #endif + #ifdef F_GETPIPE_SZ /* Linux */ + case F_GETPIPE_SZ: + #endif + #ifdef F_GETPROTECTIONCLASS /* macOS */ + case F_GETPROTECTIONCLASS: + #endif + #ifdef F_GETPROTECTIONLEVEL /* macOS */ + case F_GETPROTECTIONLEVEL: + #endif + #ifdef F_GET_SEALS /* Linux */ + case F_GET_SEALS: + #endif + #ifdef F_GETSIG /* Linux */ + case F_GETSIG: + #endif + #ifdef F_MAXFD /* NetBSD */ + case F_MAXFD: + #endif + #ifdef F_RECYCLE /* macOS */ + case F_RECYCLE: + #endif + #ifdef F_SETFIFOENH /* HP-UX */ + case F_SETFIFOENH: + #endif + #ifdef F_THAW_FS /* macOS */ + case F_THAW_FS: + #endif + /* These actions take no argument. */ + result = fcntl (fd, action); + break; + + #ifdef F_ADD_SEALS /* Linux */ + case F_ADD_SEALS: + #endif + #ifdef F_BADFD /* Solaris */ + case F_BADFD: + #endif + #ifdef F_CHECK_OPENEVT /* macOS */ + case F_CHECK_OPENEVT: + #endif + #ifdef F_DUP2FD /* FreeBSD, AIX, Solaris */ + case F_DUP2FD: + #endif + #ifdef F_DUP2FD_CLOEXEC /* FreeBSD, Solaris */ + case F_DUP2FD_CLOEXEC: + #endif + #ifdef F_DUP2FD_CLOFORK /* Solaris */ + case F_DUP2FD_CLOFORK: + #endif + #ifdef F_DUPFD /* POSIX */ + case F_DUPFD: + #endif + #ifdef F_DUPFD_CLOEXEC /* POSIX */ + case F_DUPFD_CLOEXEC: + #endif + #ifdef F_DUPFD_CLOFORK /* Solaris */ + case F_DUPFD_CLOFORK: + #endif + #ifdef F_GETXFL /* Solaris */ + case F_GETXFL: + #endif + #ifdef F_GLOBAL_NOCACHE /* macOS */ + case F_GLOBAL_NOCACHE: + #endif + #ifdef F_MAKECOMPRESSED /* macOS */ + case F_MAKECOMPRESSED: + #endif + #ifdef F_MOVEDATAEXTENTS /* macOS */ + case F_MOVEDATAEXTENTS: + #endif + #ifdef F_NOCACHE /* macOS */ + case F_NOCACHE: + #endif + #ifdef F_NODIRECT /* macOS */ + case F_NODIRECT: + #endif + #ifdef F_NOTIFY /* Linux */ + case F_NOTIFY: + #endif + #ifdef F_OPLKACK /* IRIX */ + case F_OPLKACK: + #endif + #ifdef F_OPLKREG /* IRIX */ + case F_OPLKREG: + #endif + #ifdef F_RDAHEAD /* macOS */ + case F_RDAHEAD: + #endif + #ifdef F_SETBACKINGSTORE /* macOS */ + case F_SETBACKINGSTORE: + #endif + #ifdef F_SETCONFINED /* macOS */ + case F_SETCONFINED: + #endif + #ifdef F_SETFD /* POSIX */ + case F_SETFD: + #endif + #ifdef F_SETFL /* POSIX */ + case F_SETFL: + #endif + #ifdef F_SETLEASE /* Linux */ + case F_SETLEASE: + #endif + #ifdef F_SETNOSIGPIPE /* macOS */ + case F_SETNOSIGPIPE: + #endif + #ifdef F_SETOWN /* POSIX */ + case F_SETOWN: + #endif + #ifdef F_SETPIPE_SZ /* Linux */ + case F_SETPIPE_SZ: + #endif + #ifdef F_SETPROTECTIONCLASS /* macOS */ + case F_SETPROTECTIONCLASS: + #endif + #ifdef F_SETSIG /* Linux */ + case F_SETSIG: + #endif + #ifdef F_SINGLE_WRITER /* macOS */ + case F_SINGLE_WRITER: + #endif + /* These actions take an 'int' argument. */ + { + int x = va_arg (arg, int); + result = fcntl (fd, action, x); + } + break; + + default: + /* Other actions take a pointer argument. */ + { + void *p = va_arg (arg, void *); + result = fcntl (fd, action, p); + } + break; + } #else errno = EINVAL; #endif diff --git a/lib/intprops.h b/lib/intprops.h index 3d6b3cf4d9b..cdaf6586cb6 100644 --- a/lib/intprops.h +++ b/lib/intprops.h @@ -342,8 +342,8 @@ Arguments should be free of side effects. */ #define _GL_BINARY_OP_OVERFLOW(a, b, op_result_overflow) \ op_result_overflow (a, b, \ - _GL_INT_MINIMUM ((1 ? 0 : (b)) + (a)), \ - _GL_INT_MAXIMUM ((1 ? 0 : (b)) + (a))) + _GL_INT_MINIMUM (_GL_INT_CONVERT (a, b)), \ + _GL_INT_MAXIMUM (_GL_INT_CONVERT (a, b))) /* Store the low-order bits of A + B, A - B, A * B, respectively, into *R. Return 1 if the result overflows. See above for restrictions. */ diff --git a/lib/limits.in.h b/lib/limits.in.h index 2c809d97ac4..89d7195488a 100644 --- a/lib/limits.in.h +++ b/lib/limits.in.h @@ -28,15 +28,32 @@ #ifndef _@GUARD_PREFIX@_LIMITS_H #define _@GUARD_PREFIX@_LIMITS_H -/* For HP-UX 11.31. */ -#if defined LONG_LONG_MIN && !defined LLONG_MIN -# define LLONG_MIN LONG_LONG_MIN +#ifndef LLONG_MIN +# if defined LONG_LONG_MIN /* HP-UX 11.31 */ +# define LLONG_MIN LONG_LONG_MIN +# elif defined LONGLONG_MIN /* IRIX 6.5 */ +# define LLONG_MIN LONGLONG_MIN +# elif defined __GNUC__ +# define LLONG_MIN (- __LONG_LONG_MAX__ - 1LL) +# endif #endif -#if defined LONG_LONG_MAX && !defined LLONG_MAX -# define LLONG_MAX LONG_LONG_MAX +#ifndef LLONG_MAX +# if defined LONG_LONG_MAX /* HP-UX 11.31 */ +# define LLONG_MAX LONG_LONG_MAX +# elif defined LONGLONG_MAX /* IRIX 6.5 */ +# define LLONG_MAX LONGLONG_MAX +# elif defined __GNUC__ +# define LLONG_MAX __LONG_LONG_MAX__ +# endif #endif -#if defined ULONG_LONG_MAX && !defined ULLONG_MAX -# define ULLONG_MAX ULONG_LONG_MAX +#ifndef ULLONG_MAX +# if defined ULONG_LONG_MAX /* HP-UX 11.31 */ +# define ULLONG_MAX ULONG_LONG_MAX +# elif defined ULONGLONG_MAX /* IRIX 6.5 */ +# define ULLONG_MAX ULONGLONG_MAX +# elif defined __GNUC__ +# define ULLONG_MAX (__LONG_LONG_MAX__ * 2ULL + 1ULL) +# endif #endif /* The number of usable bits in an unsigned or signed integer type @@ -53,6 +70,19 @@ #define _GL_COB8(n) (_GL_COB4 ((n) >> 4) + _GL_COB4 (n)) #define _GL_COB4(n) (!!((n) & 8) + !!((n) & 4) + !!((n) & 2) + !!((n) & 1)) +#ifndef WORD_BIT +/* Assume 'int' is 32 bits wide. */ +# define WORD_BIT 32 +#endif +#ifndef LONG_BIT +/* Assume 'long' is 32 or 64 bits wide. */ +# if LONG_MAX == INT_MAX +# define LONG_BIT 32 +# else +# define LONG_BIT 64 +# endif +#endif + /* Macros specified by ISO/IEC TS 18661-1:2014. */ #if (! defined ULLONG_WIDTH \ diff --git a/lib/mktime-internal.h b/lib/mktime-internal.h index 92bdda6f6c3..31cf3a4dab2 100644 --- a/lib/mktime-internal.h +++ b/lib/mktime-internal.h @@ -35,3 +35,19 @@ typedef int mktime_offset_t; time_t mktime_internal (struct tm *, struct tm * (*) (time_t const *, struct tm *), mktime_offset_t *); + +/* Although glibc source code uses leading underscores, Gnulib wants + ordinary names. + + Portable standalone applications should supply a that + declares a POSIX-compliant localtime_r, for the benefit of older + implementations that lack localtime_r or have a nonstandard one. + Similarly for gmtime_r. See the gnulib time_r module for one way + to implement this. */ + +#undef __gmtime_r +#undef __localtime_r +#define __gmtime_r gmtime_r +#define __localtime_r localtime_r + +#define __mktime_internal mktime_internal diff --git a/lib/mktime.c b/lib/mktime.c index 007adf14e8e..6953e984e5d 100644 --- a/lib/mktime.c +++ b/lib/mktime.c @@ -28,6 +28,8 @@ Macro/expression Which gnulib module This compilation unit should define + _LIBC (glibc proper) mktime + NEED_MKTIME_WORKING mktime rpl_mktime || NEED_MKTIME_WINDOWS @@ -51,25 +53,70 @@ #include #include +#include +#include #include #include #if DEBUG_MKTIME # include -# include -# include /* Make it work even if the system's libc has its own mktime routine. */ # undef mktime # define mktime my_mktime +#endif /* DEBUG_MKTIME */ + +#ifndef NEED_MKTIME_INTERNAL +# define NEED_MKTIME_INTERNAL 0 +#endif +#ifndef NEED_MKTIME_WINDOWS +# define NEED_MKTIME_WINDOWS 0 +#endif +#ifndef NEED_MKTIME_WORKING +# define NEED_MKTIME_WORKING DEBUG_MKTIME #endif -#if NEED_MKTIME_WINDOWS /* on native Windows */ -# include -# include +#include "mktime-internal.h" + +#ifndef _LIBC +static void +my_tzset (void) +{ +# if NEED_MKTIME_WINDOWS + /* Rectify the value of the environment variable TZ. + There are four possible kinds of such values: + - Traditional US time zone names, e.g. "PST8PDT". Syntax: see + + - Time zone names based on geography, that contain one or more + slashes, e.g. "Europe/Moscow". + - Time zone names based on geography, without slashes, e.g. + "Singapore". + - Time zone names that contain explicit DST rules. Syntax: see + + The Microsoft CRT understands only the first kind. It produces incorrect + results if the value of TZ is of the other kinds. + But in a Cygwin environment, /etc/profile.d/tzset.sh sets TZ to a value + of the second kind for most geographies, or of the first kind in a few + other geographies. If it is of the second kind, neutralize it. For the + Microsoft CRT, an absent or empty TZ means the time zone that the user + has set in the Windows Control Panel. + If the value of TZ is of the third or fourth kind -- Cygwin programs + understand these syntaxes as well --, it does not matter whether we + neutralize it or not, since these values occur only when a Cygwin user + has set TZ explicitly; this case is 1. rare and 2. under the user's + responsibility. */ + const char *tz = getenv ("TZ"); + if (tz != NULL && strchr (tz, '/') != NULL) + _putenv ("TZ="); +# elif HAVE_TZSET + tzset (); +# endif +} +# undef __tzset +# define __tzset() my_tzset () #endif -#if NEED_MKTIME_WORKING || NEED_MKTIME_INTERNAL || DEBUG_MKTIME +#if defined _LIBC || NEED_MKTIME_WORKING || NEED_MKTIME_INTERNAL /* A signed type that can represent an integer number of years multiplied by three times the number of seconds in a year. It is @@ -150,19 +197,6 @@ const unsigned short int __mon_yday[2][13] = }; -#ifdef _LIBC -typedef time_t mktime_offset_t; -#else -/* Portable standalone applications should supply a that - declares a POSIX-compliant localtime_r, for the benefit of older - implementations that lack localtime_r or have a nonstandard one. - See the gnulib time_r module for one way to implement this. */ -# undef __localtime_r -# define __localtime_r localtime_r -# define __mktime_internal mktime_internal -# include "mktime-internal.h" -#endif - /* Do the values A and B differ according to the rules for tm_isdst? A and B differ if one is zero and the other positive. */ static bool @@ -304,6 +338,7 @@ ranged_convert (struct tm *(*convert) (const time_t *, struct tm *), return r; } + /* Convert *TP to a time_t value, inverting the monotonic and mostly-unit-linear conversion function CONVERT. Use *OFFSET to keep track of a guess at the offset of the result, @@ -355,6 +390,7 @@ __mktime_internal (struct tm *tp, long_int lmday = mday; long_int yday = mon_yday + lmday; + mktime_offset_t off = *offset; int negative_offset_guess; int sec_requested = sec; @@ -372,7 +408,7 @@ __mktime_internal (struct tm *tp, /* Invert CONVERT by probing. First assume the same offset as last time. */ - INT_SUBTRACT_WRAPV (0, *offset, &negative_offset_guess); + INT_SUBTRACT_WRAPV (0, off, &negative_offset_guess); t0 = ydhms_diff (year, yday, hour, min, sec, EPOCH_YEAR - TM_YEAR_BASE, 0, 0, 0, negative_offset_guess); @@ -478,64 +514,28 @@ __mktime_internal (struct tm *tp, return t; } -#endif /* NEED_MKTIME_WORKING || NEED_MKTIME_INTERNAL || DEBUG_MKTIME */ +#endif /* _LIBC || NEED_MKTIME_WORKING || NEED_MKTIME_INTERNAL */ -#if NEED_MKTIME_WORKING || NEED_MKTIME_WINDOWS || DEBUG_MKTIME - -# if NEED_MKTIME_WORKING || DEBUG_MKTIME -static mktime_offset_t localtime_offset; -# endif +#if defined _LIBC || NEED_MKTIME_WORKING || NEED_MKTIME_WINDOWS /* Convert *TP to a time_t value. */ time_t mktime (struct tm *tp) { -# if NEED_MKTIME_WINDOWS - /* Rectify the value of the environment variable TZ. - There are four possible kinds of such values: - - Traditional US time zone names, e.g. "PST8PDT". Syntax: see - - - Time zone names based on geography, that contain one or more - slashes, e.g. "Europe/Moscow". - - Time zone names based on geography, without slashes, e.g. - "Singapore". - - Time zone names that contain explicit DST rules. Syntax: see - - The Microsoft CRT understands only the first kind. It produces incorrect - results if the value of TZ is of the other kinds. - But in a Cygwin environment, /etc/profile.d/tzset.sh sets TZ to a value - of the second kind for most geographies, or of the first kind in a few - other geographies. If it is of the second kind, neutralize it. For the - Microsoft CRT, an absent or empty TZ means the time zone that the user - has set in the Windows Control Panel. - If the value of TZ is of the third or fourth kind -- Cygwin programs - understand these syntaxes as well --, it does not matter whether we - neutralize it or not, since these values occur only when a Cygwin user - has set TZ explicitly; this case is 1. rare and 2. under the user's - responsibility. */ - const char *tz = getenv ("TZ"); - if (tz != NULL && strchr (tz, '/') != NULL) - _putenv ("TZ="); -# endif - -# if NEED_MKTIME_WORKING || DEBUG_MKTIME -# ifdef _LIBC /* POSIX.1 8.1.1 requires that whenever mktime() is called, the time zone names contained in the external variable 'tzname' shall be set as if the tzset() function had been called. */ __tzset (); -# elif HAVE_TZSET - tzset (); -# endif +# if defined __LIBC || NEED_MKTIME_WORKING + static mktime_offset_t localtime_offset; return __mktime_internal (tp, __localtime_r, &localtime_offset); # else # undef mktime return mktime (tp); # endif } - -#endif /* NEED_MKTIME_WORKING || NEED_MKTIME_WINDOWS || DEBUG_MKTIME */ +#endif /* _LIBC || NEED_MKTIME_WORKING || NEED_MKTIME_WINDOWS */ #ifdef weak_alias weak_alias (mktime, timelocal) diff --git a/lib/stat-time.h b/lib/stat-time.h index 8e787bd3b2d..69ebe85df1d 100644 --- a/lib/stat-time.h +++ b/lib/stat-time.h @@ -213,7 +213,7 @@ stat_time_normalize (int result, struct stat *st _GL_UNUSED) #if defined __sun && defined STAT_TIMESPEC if (result == 0) { - long int timespec_resolution = 1000000000; + long int timespec_hz = 1000000000; short int const ts_off[] = { offsetof (struct stat, st_atim), offsetof (struct stat, st_mtim), offsetof (struct stat, st_ctim) }; @@ -221,11 +221,11 @@ stat_time_normalize (int result, struct stat *st _GL_UNUSED) for (i = 0; i < sizeof ts_off / sizeof *ts_off; i++) { struct timespec *ts = (struct timespec *) ((char *) st + ts_off[i]); - long int q = ts->tv_nsec / timespec_resolution; - long int r = ts->tv_nsec % timespec_resolution; + long int q = ts->tv_nsec / timespec_hz; + long int r = ts->tv_nsec % timespec_hz; if (r < 0) { - r += timespec_resolution; + r += timespec_hz; q--; } ts->tv_nsec = r; diff --git a/lib/strtol.c b/lib/strtol.c index 55871b4c78c..f6f5c3268de 100644 --- a/lib/strtol.c +++ b/lib/strtol.c @@ -117,35 +117,6 @@ # define STRTOL_LONG_MIN LLONG_MIN # define STRTOL_LONG_MAX LLONG_MAX # define STRTOL_ULONG_MAX ULLONG_MAX - -/* The extra casts in the following macros work around compiler bugs, - e.g., in Cray C 5.0.3.0. */ - -/* True if the arithmetic type T is signed. */ -# define TYPE_SIGNED(t) (! ((t) 0 < (t) -1)) - -/* Minimum and maximum values for integer types. - These macros have undefined behavior for signed types that either - have padding bits or do not use two's complement. If this is a - problem for you, please let us know how to fix it for your host. */ - -/* The maximum and minimum values for the integer type T. */ -# define TYPE_MINIMUM(t) ((t) ~ TYPE_MAXIMUM (t)) -# define TYPE_MAXIMUM(t) \ - ((t) (! TYPE_SIGNED (t) \ - ? (t) -1 \ - : ((((t) 1 << (sizeof (t) * CHAR_BIT - 2)) - 1) * 2 + 1))) - -# ifndef ULLONG_MAX -# define ULLONG_MAX TYPE_MAXIMUM (unsigned long long) -# endif -# ifndef LLONG_MAX -# define LLONG_MAX TYPE_MAXIMUM (long long int) -# endif -# ifndef LLONG_MIN -# define LLONG_MIN TYPE_MINIMUM (long long int) -# endif - # if __GNUC__ == 2 && __GNUC_MINOR__ < 7 /* Work around gcc bug with using this constant. */ static const unsigned long long int maxquad = ULLONG_MAX; diff --git a/lib/timegm.c b/lib/timegm.c index 7eb5ecbe330..9d9ab111251 100644 --- a/lib/timegm.c +++ b/lib/timegm.c @@ -1,20 +1,21 @@ /* Convert UTC calendar time to simple time. Like mktime but assumes UTC. - Copyright (C) 1994, 1997, 2003-2004, 2006-2007, 2009-2018 Free Software - Foundation, Inc. This file is part of the GNU C Library. + Copyright (C) 1994-2018 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, or (at your option) - any later version. + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public + License as published by the Free Software Foundation; either + version 3 of the License, or (at your option) any later version. - This program is distributed in the hope that it will be useful, + The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. - You should have received a copy of the GNU General Public License - along with this program; if not, see . */ + You should have received a copy of the GNU General Public + License along with the GNU C Library; if not, see + . */ #ifndef _LIBC # include @@ -22,14 +23,7 @@ #include -#ifdef _LIBC -typedef time_t mktime_offset_t; -#else -# undef __gmtime_r -# define __gmtime_r gmtime_r -# define __mktime_internal mktime_internal -# include "mktime-internal.h" -#endif +#include "mktime-internal.h" time_t timegm (struct tm *tmp) diff --git a/lib/timespec-add.c b/lib/timespec-add.c index f6a8c38b33d..1913b979edd 100644 --- a/lib/timespec-add.c +++ b/lib/timespec-add.c @@ -18,7 +18,7 @@ /* Written by Paul Eggert. */ /* Return the sum of two timespec values A and B. On overflow, return - an extremal value. This assumes 0 <= tv_nsec < TIMESPEC_RESOLUTION. */ + an extremal value. This assumes 0 <= tv_nsec < TIMESPEC_HZ. */ #include #include "timespec.h" @@ -31,7 +31,7 @@ timespec_add (struct timespec a, struct timespec b) time_t rs = a.tv_sec; time_t bs = b.tv_sec; int ns = a.tv_nsec + b.tv_nsec; - int nsd = ns - TIMESPEC_RESOLUTION; + int nsd = ns - TIMESPEC_HZ; int rns = ns; time_t tmin = TYPE_MINIMUM (time_t); time_t tmax = TYPE_MAXIMUM (time_t); @@ -63,7 +63,7 @@ timespec_add (struct timespec a, struct timespec b) { high_overflow: rs = tmax; - rns = TIMESPEC_RESOLUTION - 1; + rns = TIMESPEC_HZ - 1; } } diff --git a/lib/timespec-sub.c b/lib/timespec-sub.c index 398a6a5de47..9eac36e51ac 100644 --- a/lib/timespec-sub.c +++ b/lib/timespec-sub.c @@ -19,7 +19,7 @@ /* Return the difference between two timespec values A and B. On overflow, return an extremal value. This assumes 0 <= tv_nsec < - TIMESPEC_RESOLUTION. */ + TIMESPEC_HZ. */ #include #include "timespec.h" @@ -38,7 +38,7 @@ timespec_sub (struct timespec a, struct timespec b) if (ns < 0) { - rns = ns + TIMESPEC_RESOLUTION; + rns = ns + TIMESPEC_HZ; if (bs < tmax) bs++; else if (- TYPE_SIGNED (time_t) < rs) @@ -63,7 +63,7 @@ timespec_sub (struct timespec a, struct timespec b) else { rs = tmax; - rns = TIMESPEC_RESOLUTION - 1; + rns = TIMESPEC_HZ - 1; } } diff --git a/lib/timespec.h b/lib/timespec.h index 94ba8d0b6a0..c414cfe45ee 100644 --- a/lib/timespec.h +++ b/lib/timespec.h @@ -35,11 +35,17 @@ extern "C" { #include "verify.h" -/* Resolution of timespec timestamps (in units per second), and log - base 10 of the resolution. */ +/* Inverse resolution of timespec timestamps (in units per second), + and log base 10 of the inverse resolution. */ -enum { TIMESPEC_RESOLUTION = 1000000000 }; -enum { LOG10_TIMESPEC_RESOLUTION = 9 }; +enum { TIMESPEC_HZ = 1000000000 }; +enum { LOG10_TIMESPEC_HZ = 9 }; + +/* Obsolescent names for backward compatibility. + They are misnomers, because TIMESPEC_RESOLUTION is not a resolution. */ + +enum { TIMESPEC_RESOLUTION = TIMESPEC_HZ }; +enum { LOG10_TIMESPEC_RESOLUTION = LOG10_TIMESPEC_HZ }; /* Return a timespec with seconds S and nanoseconds NS. */ @@ -88,8 +94,8 @@ timespec_cmp (struct timespec a, struct timespec b) /* Pacify gcc -Wstrict-overflow (bleeding-edge circa 2017-10-02). See: https://lists.gnu.org/r/bug-gnulib/2017-10/msg00006.html */ - assume (-1 <= a.tv_nsec && a.tv_nsec <= 2 * TIMESPEC_RESOLUTION); - assume (-1 <= b.tv_nsec && b.tv_nsec <= 2 * TIMESPEC_RESOLUTION); + assume (-1 <= a.tv_nsec && a.tv_nsec <= 2 * TIMESPEC_HZ); + assume (-1 <= b.tv_nsec && b.tv_nsec <= 2 * TIMESPEC_HZ); return a.tv_nsec - b.tv_nsec; } diff --git a/lib/utimens.c b/lib/utimens.c index e65f55d82fe..f6c4fe34c7c 100644 --- a/lib/utimens.c +++ b/lib/utimens.c @@ -91,11 +91,11 @@ validate_timespec (struct timespec timespec[2]) if ((timespec[0].tv_nsec != UTIME_NOW && timespec[0].tv_nsec != UTIME_OMIT && ! (0 <= timespec[0].tv_nsec - && timespec[0].tv_nsec < TIMESPEC_RESOLUTION)) + && timespec[0].tv_nsec < TIMESPEC_HZ)) || (timespec[1].tv_nsec != UTIME_NOW && timespec[1].tv_nsec != UTIME_OMIT && ! (0 <= timespec[1].tv_nsec - && timespec[1].tv_nsec < TIMESPEC_RESOLUTION))) + && timespec[1].tv_nsec < TIMESPEC_HZ))) { errno = EINVAL; return -1; diff --git a/m4/limits-h.m4 b/m4/limits-h.m4 index 83886634396..3a2cd91ead0 100644 --- a/m4/limits-h.m4 +++ b/m4/limits-h.m4 @@ -11,14 +11,18 @@ AC_DEFUN_ONCE([gl_LIMITS_H], [ gl_CHECK_NEXT_HEADERS([limits.h]) - AC_CACHE_CHECK([whether limits.h has ULLONG_WIDTH etc.], + AC_CACHE_CHECK([whether limits.h has LLONG_MAX, WORD_BIT, ULLONG_WIDTH etc.], [gl_cv_header_limits_width], [AC_COMPILE_IFELSE( - [AC_LANG_PROGRAM([[#ifndef __STDC_WANT_IEC_60559_BFP_EXT__ - #define __STDC_WANT_IEC_60559_BFP_EXT__ 1 - #endif - #include - int ullw = ULLONG_WIDTH;]])], + [AC_LANG_PROGRAM( + [[#ifndef __STDC_WANT_IEC_60559_BFP_EXT__ + #define __STDC_WANT_IEC_60559_BFP_EXT__ 1 + #endif + #include + long long llm = LLONG_MAX; + int wb = WORD_BIT; + int ullw = ULLONG_WIDTH; + ]])], [gl_cv_header_limits_width=yes], [gl_cv_header_limits_width=no])]) if test "$gl_cv_header_limits_width" = yes; then diff --git a/m4/stddef_h.m4 b/m4/stddef_h.m4 index ba3d201cf37..07b040abdf1 100644 --- a/m4/stddef_h.m4 +++ b/m4/stddef_h.m4 @@ -1,5 +1,5 @@ dnl A placeholder for , for platforms that have issues. -# stddef_h.m4 serial 5 +# stddef_h.m4 serial 6 dnl Copyright (C) 2009-2018 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -10,13 +10,33 @@ AC_DEFUN([gl_STDDEF_H], AC_REQUIRE([gl_STDDEF_H_DEFAULTS]) AC_REQUIRE([gt_TYPE_WCHAR_T]) STDDEF_H= - AC_CHECK_TYPE([max_align_t], [], [HAVE_MAX_ALIGN_T=0; STDDEF_H=stddef.h], - [[#include - ]]) + + dnl Test whether the type max_align_t exists and whether its alignment + dnl "is as great as is supported by the implementation in all contexts". + AC_CACHE_CHECK([for good max_align_t], + [gl_cv_type_max_align_t], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM( + [[#include + unsigned int s = sizeof (max_align_t); + #if defined __GNUC__ || defined __IBM__ALIGNOF__ + int check1[2 * (__alignof__ (double) <= __alignof__ (max_align_t)) - 1]; + int check2[2 * (__alignof__ (long double) <= __alignof__ (max_align_t)) - 1]; + #endif + ]])], + [gl_cv_type_max_align_t=yes], + [gl_cv_type_max_align_t=no]) + ]) + if test $gl_cv_type_max_align_t = no; then + HAVE_MAX_ALIGN_T=0 + STDDEF_H=stddef.h + fi + if test $gt_cv_c_wchar_t = no; then HAVE_WCHAR_T=0 STDDEF_H=stddef.h fi + AC_CACHE_CHECK([whether NULL can be used in arbitrary expressions], [gl_cv_decl_null_works], [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include @@ -28,6 +48,7 @@ AC_DEFUN([gl_STDDEF_H], REPLACE_NULL=1 STDDEF_H=stddef.h fi + AC_SUBST([STDDEF_H]) AM_CONDITIONAL([GL_GENERATE_STDDEF_H], [test -n "$STDDEF_H"]) if test -n "$STDDEF_H"; then