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gh-160704: Restore C11-C17 static_assert fallback #160705

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gh-160704: Restore C11-C17 static_assert fallback #160705

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2 changes: 1 addition & 1 deletion Include/pymacro.h
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Original file line number Diff line number Diff line change
Expand Up @@ -25,7 +25,7 @@
// behaviour. So only define if building as C, not C++ (if __cplusplus is
// not defined), and only for C11-17.
#if !defined(static_assert) && (defined(__GNUC__) || defined(__clang__)) \
&& !defined(_Py_STDC_VERSION) \
&& defined(_Py_STDC_VERSION) \
&& _Py_STDC_VERSION >= 201112L && _Py_STDC_VERSION <= 201710L
# define static_assert _Static_assert
#endif
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2 changes: 2 additions & 0 deletions Misc/NEWS.d/next/Build/2026-10-26-21-00-00.gh-issue-160704.ZRYLKF.rst
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@@ -0,0 +1,2 @@
Fix C11-C17 builds with old C library headers that do not define
``static_assert``, including glibc versions older than 2.16.
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