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Paul Eggert 70410f2286 mktime: improve heuristic for ca-1986 Indiana DST 
This patch syncs mktime.c from Gnulib, fixing a
problem reported by Mark Krenz <https://bugs.gnu.org/48085>,
and it should fix BZ#29035 too.
* time/mktime.c (__mktime_internal): Be more generous about
accepting arguments with the wrong value of tm_isdst, by falling
back to a one-hour DST difference if we find no nearby DST that is
unusual.  This fixes a problem where "1986-04-28 00:00 EDT" was
rejected when TZ="America/Indianapolis" because the nearest DST
timestamp occurred in 1970, a temporal distance too great for the
old heuristic.  This also also narrows the search a bit, which
is a minor performance win.

(cherry picked from commit 83859e1115)
2022-11-08 22:46:32 -05:00
..
bits/types y2038: Add __USE_TIME_BITS64 support for struct timespec 2021-06-15 10:42:11 -03:00
sys Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
adjtime.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
alt_digit.c locale: Remove private union from struct __locale_data 2022-05-23 11:06:31 +02:00
asctime.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
bug-asctime_r.c [BZ #1468] 2005-10-14 17:20:58 +00:00
bug-asctime.c [BZ #1460] 2005-10-14 15:17:40 +00:00
bug-getdate1.c support: Introduce new subdirectory for test infrastructure 2016-12-09 08:18:27 +01:00
bug-mktime1.c [BZ #2821] 2006-09-09 16:56:29 +00:00
bug-mktime4.c mktime: new test for mktime failure 2018-11-15 22:59:33 +01:00
clock_getcpuclockid.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
clock_getres.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
clock_gettime.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
clock_nanosleep.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
clock_settime.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
clock.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
clocktest.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
ctime_r.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
ctime.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
datemsk * time/Makefile (tst-getdate-ENV): Add TZDIR to environment. 2001-07-18 09:43:36 +00:00
Depend * time/Makefile (tst-getdate-ENV): Add TZDIR to environment. 2001-07-18 09:43:36 +00:00
difftime.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
dysize.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
era.c locale: Remove private union from struct __locale_data 2022-05-23 11:06:31 +02:00
ftime.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
getdate.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
getitimer.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
gettimeofday.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
gmtime.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
lc-time-cleanup.c locale: Remove private union from struct __locale_data 2022-05-23 11:06:31 +02:00
localtime.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
Makefile Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
mktime-internal.h Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
mktime.c mktime: improve heuristic for ca-1986 Indiana DST 2022-11-08 22:46:32 -05:00
offtime.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
setitimer.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
settimeofday.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
settimezone.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
stime.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
strftime_l.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
strftime.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
strptime_l.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
strptime.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
test_time.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
time.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
time.h Declare timegm for ISO C2X 2022-06-06 14:47:03 +00:00
timegm.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
timespec_get.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
timespec_getres.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tst_wcsftime.c Don't use the argument to time. 2019-08-21 08:26:36 -04:00
tst-adjtime-time64.c y2038: Add test coverage 2021-06-15 10:42:11 -03:00
tst-adjtime.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tst-clock2-time64.c y2038: Add test coverage 2021-06-15 10:42:11 -03:00
tst-clock2.c Finish move of clock_* functions to libc. [BZ #24959] 2019-09-04 14:39:38 +02:00
tst-clock_nanosleep-time64.c y2038: Add test coverage 2021-06-15 10:42:11 -03:00
tst-clock_nanosleep.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tst-clock_settime-time64.c y2038: Add test coverage 2021-06-15 10:42:11 -03:00
tst-clock_settime.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tst-clock-time64.c y2038: Add test coverage 2021-06-15 10:42:11 -03:00
tst-clock.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tst-cpuclock1-time64.c y2038: Add test coverage 2021-06-15 10:42:11 -03:00
tst-cpuclock1.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tst-ctime-time64.c y2038: Add test coverage 2021-06-15 10:42:11 -03:00
tst-ctime.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tst-difftime-time64.c y2038: Add test coverage 2021-06-15 10:42:11 -03:00
tst-difftime.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tst-ftime_l.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-ftime.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tst-getdate.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tst-gmtime-time64.c y2038: Add test coverage 2021-06-15 10:42:11 -03:00
tst-gmtime.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tst-itimer-time64.c y2038: Add test coverage 2021-06-15 10:42:11 -03:00
tst-itimer.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tst-mktime2.c time/tst-mktime2: Improve test error reporting 2018-10-23 11:25:05 +02:00
tst-mktime3.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-mktime4-time64.c y2038: Add test coverage 2021-06-15 10:42:11 -03:00
tst-mktime4.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tst-mktime.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-posixtz.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-settimeofday-time64.c y2038: Add test coverage 2021-06-15 10:42:11 -03:00
tst-settimeofday.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tst-strftime2.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tst-strftime3.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tst-strftime.c Fix BZ #18985 -- out of range data to strftime() causes a segfault 2015-09-26 13:27:48 -07:00
tst-strptime2.c Split DIAG_* macros to new header libc-diag.h. 2017-02-25 09:59:46 -05:00
tst-strptime3.c time: ensure failing strptime() tests are reported correctly 2015-03-06 06:06:26 -05:00
tst-strptime-whitespace.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tst-strptime.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tst-timegm-time64.c y2038: Add test coverage 2021-06-15 10:42:11 -03:00
tst-timegm.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tst-timespec_get-time64.c y2038: Add test coverage 2021-06-15 10:42:11 -03:00
tst-timespec_get.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tst-timespec_getres-time64.c y2038: Add test coverage 2021-06-15 10:42:11 -03:00
tst-timespec_getres.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tst-tzname.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tst-y2039-time64.c y2038: Add test coverage 2021-06-15 10:42:11 -03:00
tst-y2039.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tzfile.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
tzset.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
Versions Add C2X timespec_getres 2021-05-17 20:55:21 +00:00
wcsftime_l.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00
wcsftime.c Update copyright dates with scripts/update-copyrights 2022-01-01 11:40:24 -08:00