python
diff --git a/‎Include/pymacro.h‎
Lines changed: 3 additions & 1 deletion b/‎Include/pymacro.h‎
Lines changed: 3 additions & 1 deletion
diff --git a/‎…06-10-23-41-48.gh-issue-91731.fhYUQG.rst‎ ‎…06-10-23-41-48.gh-issue-91731.fhYUQG.rst‎Misc/NEWS.d/next/Core and Builtins/2022-06-10-23-41-48.gh-issue-91731.fhYUQG.rst renamed to Misc/NEWS.d/next/C API/2022-06-10-23-41-48.gh-issue-91731.fhYUQG.rst b/‎…06-10-23-41-48.gh-issue-91731.fhYUQG.rst‎ ‎…06-10-23-41-48.gh-issue-91731.fhYUQG.rst‎Misc/NEWS.d/next/Core and Builtins/2022-06-10-23-41-48.gh-issue-91731.fhYUQG.rst renamed to Misc/NEWS.d/next/C API/2022-06-10-23-41-48.gh-issue-91731.fhYUQG.rst
@@ -12,9 +12,11 @@
 
 // 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(static_assert) && !(defined(__cplusplus) && __cplusplus >= 201103L))
+     && !(defined(__cplusplus) && __cplusplus >= 201103L) \
+     && !defined(static_assert))
 #  define static_assert _Static_assert
 #endif