gh-135927: Fix MSVC Clatest C builds#135935
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Fidget-Spinner commented Jun 25, 2025
Verified locally that building with clang-cl also works. |
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zooba commented Jun 25, 2025
Change looks fine to me, though I haven't dug into why the availability differs. If this works, then I guess it's fine. |
Fidget-Spinner merged commit a88b49c into python:main 40 checks passed
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Fidget-Spinner commented Jun 25, 2025
Thanks Steve! |
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chris-eibl commented Jun 25, 2025
I am on Mobile, but LGTM |
| // to prevent C++ compiler warnings. On C23 and newer and on C++11 and newer, | ||
| // _Py_NULL is defined as nullptr. | ||
| #if (defined (__STDC_VERSION__) && __STDC_VERSION__ > 201710L) \ | ||
| #if (defined(__GNUC__) || defined(__clang__)) && \ |
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Since there are other C compilers in the wild, it would be better to check for !defined(_MSC_VER) instead of being specific about GCC and clang.
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Hmm you're right. Do you want to open a PR for this?
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I created #135987 : can you test it with MSC with /std:clatest?
AndPuQing pushed a commit to AndPuQing/cpython that referenced this pull request Jul 11, 2025
Pranjal095 pushed a commit to Pranjal095/cpython that referenced this pull request Jul 12, 2025
taegyunkim pushed a commit to taegyunkim/cpython that referenced this pull request Aug 4, 2025
Agent-Hellboy pushed a commit to Agent-Hellboy/cpython that referenced this pull request Aug 19, 2025
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The problem is that we are checking for the latest C assuming only GCC and Clang supports it, but in reality MSVC supports it (on some configurations) too.
The fix is to account for MSVC.