[vim/vim] Implement strptime() fallback for MS-Windows (PR #20054)

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mattn

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2:43 AM (10 hours ago) 2:43 AM

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The MSVC and MinGW C runtimes do not provide strptime(), so the strptime() builtin was unavailable on Windows. Port NetBSD's lib/libc/time/strptime.c (rev 1.67) and compile it into the Windows builds. The BSD 2-clause notice from the original is preserved in the file. Windows-specific adjustments: English-only locale tables, the fromzone()/tzalloc() path is stubbed out (no IANA tzfile loader on Windows), and tm_gmtoff / tm_zone stores are elided.

Also call tzset() before mktime() in f_strptime() so changes to $TZ are honored.

Skip the POSIX DST TZ assertion in Test_strptime() on MS-Windows since the CRT tzset() does not parse POSIX TZ strings with DST rules.

You can view, comment on, or merge this pull request online at:

https://github.com/vim/vim/pull/20054

Commit Summary

422c981 Implement strptime() fallback for MS-Windows

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(7 files)

Patch Links:

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mattn

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2:58 AM (9 hours ago) 2:58 AM

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@mattn pushed 1 commit.

62b494b Skip codestyle check for strptime.c

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