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Title: gh-123681: Check NORMALIZE_CENTURY behavior at runtime; require C99 by encukou · Pull Request #136022 · python/cpython · GitHub

Open Graph Title: gh-123681: Check NORMALIZE_CENTURY behavior at runtime; require C99 by encukou · Pull Request #136022 · python/cpython

X Title: gh-123681: Check NORMALIZE_CENTURY behavior at runtime; require C99 by encukou · Pull Request #136022 · python/cpython

Description: This is a continuation of #128444. CPython requires C11, so all C99 features should work. We might need workaround if a supported platform misbehaves (hence this PR -- I want to feed the buildbots). But, IMO, any workarounds for unsupported platforms best left to the respective forks. Serhiy's runtime check for normalize_century is left in; I don't know about the details there. Issue: gh-123681

Open Graph Description: This is a continuation of #128444. CPython requires C11, so all C99 features should work. We might need workaround if a supported platform misbehaves (hence this PR -- I want to feed the buildbots)...

X Description: This is a continuation of #128444. CPython requires C11, so all C99 features should work. We might need workaround if a supported platform misbehaves (hence this PR -- I want to feed the buildbots)...

Opengraph URL: https://github.com/python/cpython/pull/136022

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0d17190 gh-123681: Check the strftime() behavior at runtime instead of at the… serhiy-storchaka Jan 3, 2025 https://github.com/python/cpython/pull/136022/commits/0d17190cc821ee5ce1c1bf6ddafaeeebb2c3f463
695f58f Merge branch 'main' into strftime-runtime-checks serhiy-storchaka Apr 8, 2025 https://github.com/python/cpython/pull/136022/commits/695f58f4b16906c8822ffd570bc03e5eb1b521c1
26441f9 Add static variables to ignored.tsv. serhiy-storchaka Apr 8, 2025 https://github.com/python/cpython/pull/136022/commits/26441f90997b6442d7a9325cc2987161a83b753c
65cf376 Merge branch 'main' into strftime-runtime-checks serhiy-storchaka Apr 9, 2025 https://github.com/python/cpython/pull/136022/commits/65cf3768c339d8b57c6e56e766f51caa0ccdf5cf
872a3e0 Merge in the main branch; run `make regen-configure` encukou Jun 27, 2025 https://github.com/python/cpython/pull/136022/commits/872a3e07b2ef9ba4306413a9deb3fc30b05b11a5
8231ace CPython needs C99 encukou Jun 27, 2025 https://github.com/python/cpython/pull/136022/commits/8231ace06c0b160fa6ec62ac092350bced352572
edf4428 Remove _can_support_c99 from _pydatetime.py encukou Jul 1, 2025 https://github.com/python/cpython/pull/136022/commits/edf4428a59eecb2b547c92a0e19d9bbf3c2743d0
a52be23 Merge in the main branch encukou Jul 8, 2025 https://github.com/python/cpython/pull/136022/commits/a52be23e9361a54ce6ba81722daf426f5458f767
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631f95e Merge branch 'main' into strftime-c99-always encukou Aug 19, 2025 https://github.com/python/cpython/pull/136022/commits/631f95e4668021726883f5df87f4040416fd6f7e
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