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pythongh-91731: Don't define 'static_assert' in C++11 where is a keyw…
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…ord to avoid UB (pythonGH-93700)

(cherry picked from commit 65ff27c)

Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
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pablogsal authored and miss-islington committed Jun 16, 2022
1 parent 0c49a09 commit 491392a
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2 changes: 2 additions & 0 deletions Include/pymacro.h
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// static_assert is defined in glibc from version 2.16. Before it requires
// compiler support (gcc >= 4.6) and is called _Static_assert.
// In C++ 11 static_assert is a keyword, redefining is undefined behaviour.
#if (defined(__GLIBC__) \
&& (__GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ <= 16)) \
&& !(defined(__cplusplus) && __cplusplus >= 201103L) \
&& !defined(static_assert))
# define static_assert _Static_assert
#endif
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Avoid defining the ``static_assert`` when compiling with C++ 11, where this
is a keyword and redefining it can lead to undefined behavior. Patch by
Pablo Galindo

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