July 2021 - tz - lists.iana.org

No leap second on 2021-12-31
by Tim Parenti July 22, 2021

July 22, 2021

Per IERS, Bulletin C 62 (2021-07-05) https://hpiers.obspm.fr/iers/bul/bulc/bulletinc.62 …and forwarded below. A patch updating leap-seconds.list from NIST is attached, and is installed in the development repository. -- Tim Parenti ---------- Forwarded message --------- From: IERS EOP Product Center <iers.eoppc(a)obspm.fr> Date: Mon, 5 Jul 2021 at 05:54 Subject: Bulletin C number 62 To: <bulc.iers(a)obspm.fr> INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS) SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE ET DES SYSTEMES DE REFERENCE SERVICE DE LA ROTATION TERRESTRE DE L'IERS OBSERVATOIRE DE PARIS 61, Av. de l'Observatoire 75014 PARIS (France) Tel. : +33 1 40 51 23 35 e-mail : services.iers(a)obspm.fr http://hpiers.obspm.fr/eop-pc Paris, 05 July 2021 Bulletin C 62 To authorities responsible for the measurement and distribution of time INFORMATION ON UTC - TAI NO leap second will be introduced at the end of December 2021. The difference between Coordinated Universal Time UTC and the International Atomic Time TAI is : from 2017 January 1, 0h UTC, until further notice : UTC-TAI = -37 s Leap seconds can be introduced in UTC at the end of the months of December or June, depending on the evolution of UT1-TAI. Bulletin C is mailed every six months, either to announce a time step in UTC, or to confirm that there will be no time step at the next possible date. Christian BIZOUARD Director Earth Orientation Center of IERS Observatoire de Paris, France

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Need input - minimal tzdata install
by Patsy Griffin July 20, 2021

July 20, 2021

Hi, We are trying to reduce the required base installation on containers. We are looking at ways to reduce the amount of timezone data needed. Specifically, we are considering providing a minimal/UTC-only tzdata package. Is this something that the tz project would consider providing? Would the tz project be willing to document a recommended minimum set of files for such an installation? Thanks, Patsy

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[PROPOSED] Do not include sys/wait.h
by Paul Eggert July 15, 2021

July 15, 2021

This cleans up some code no longer needed now that we’ve dropped support for zic -y. Issue noted by spazmodius in: https://github.com/eggert/tz/commit/284e877d7511d964249ecfd2e75a9cab85e2741… * Makefile, NEWS: Update commentary. * private.h (HAVE_SYS_WAIT_H): Remove. All uses removed. * zic.c: Do not include sys/wait.h. (WIFEXITED, WEXITSTATUS): Remove; unused. --- Makefile | 1 - NEWS | 3 +++ private.h | 4 ---- zic.c | 11 ----------- 4 files changed, 3 insertions(+), 16 deletions(-) diff --git a/Makefile b/Makefile index 77ef331..f441fce 100644 --- a/Makefile +++ b/Makefile @@ -222,7 +222,6 @@ LDLIBS= # -DHAVE_STRTOLL=0 if your system lacks the strtoll function # -DHAVE_SYMLINK=0 if your system lacks the symlink function # -DHAVE_SYS_STAT_H=0 if your compiler lacks a <sys/stat.h> -# -DHAVE_SYS_WAIT_H=0 if your compiler lacks a <sys/wait.h> # -DHAVE_TZSET=0 if your system lacks a tzset function # -DHAVE_UNISTD_H=0 if your compiler lacks a <unistd.h> # -Dlocale_t=XXX if your system uses XXX instead of locale_t diff --git a/NEWS b/NEWS index 53890a7..f53e431 100644 --- a/NEWS +++ b/NEWS @@ -124,6 +124,9 @@ Unreleased, experimental changes "EST5EDT,0/0,J365/25" or "". (Thanks to Michael Deckers for noting the possibility of POSIX conformance.) + zic.c no longer requires sys/wait.h (thanks to spazmodius for + noting it wasn't needed). + When reading slim TZif files, zdump no longer mishandles leap seconds on the rare platforms where time_t counts leap seconds, fixing a bug introduced in 2014g. diff --git a/private.h b/private.h index 340a354..6425298 100644 --- a/private.h +++ b/private.h @@ -90,10 +90,6 @@ #define HAVE_SYS_STAT_H 1 #endif /* !defined HAVE_SYS_STAT_H */ -#ifndef HAVE_SYS_WAIT_H -#define HAVE_SYS_WAIT_H 1 -#endif /* !defined HAVE_SYS_WAIT_H */ - #ifndef HAVE_UNISTD_H #define HAVE_UNISTD_H 1 #endif /* !defined HAVE_UNISTD_H */ diff --git a/zic.c b/zic.c index 77a5698..8d1ea03 100644 --- a/zic.c +++ b/zic.c @@ -48,17 +48,6 @@ typedef int_fast64_t zic_t; #define MKDIR_UMASK 0755 #endif -#if HAVE_SYS_WAIT_H -#include <sys/wait.h> /* for WIFEXITED and WEXITSTATUS */ -#endif /* HAVE_SYS_WAIT_H */ - -#ifndef WIFEXITED -#define WIFEXITED(status) (((status) & 0xff) == 0) -#endif /* !defined WIFEXITED */ -#ifndef WEXITSTATUS -#define WEXITSTATUS(status) (((status) >> 8) & 0xff) -#endif /* !defined WEXITSTATUS */ - /* The maximum ptrdiff_t value, for pre-C99 platforms. */ #ifndef PTRDIFF_MAX static ptrdiff_t const PTRDIFF_MAX = MAXVAL(ptrdiff_t, TYPE_BIT(ptrdiff_t)); -- 2.31.1

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