New _Py_STDC_VERSION macro not available in pyport.h #160719

Bug report

The new _Py_STDC_VERSION macro introduced in 47163e5, is located in Include/pymacro.h‎ and used in Include/pyport.h, but it seems pymacro.h‎ is only ever included in Python.h, and after pyport.h:

So for example this branch will never be true because _Py_STDC_VERSION is undefined here:

CPython versions tested on:

3.15, CPython main branch

Operating systems tested on:

Linux

Linked PRs

• gh-160719: Define _Py_STDC_VERSION in pyport.h #160733