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| author | Paul Eggert <eggert@cs.ucla.edu> | 2022-09-08 20:08:32 -0500 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2022-09-08 22:55:54 -0500 |
| commit | 83859e1115269cf56d21669361d4ddbe2687831c (patch) | |
| tree | 39a225e7d9bea9a0eccdbbe075faf03de61f75b2 /sysdeps/unix/x86_64 | |
| parent | 82a1ec851025ccae54dea43149915707f890746b (diff) | |
| download | glibc-83859e1115269cf56d21669361d4ddbe2687831c.tar.gz glibc-83859e1115269cf56d21669361d4ddbe2687831c.tar.xz glibc-83859e1115269cf56d21669361d4ddbe2687831c.zip | |
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.
Diffstat (limited to 'sysdeps/unix/x86_64')
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