Build Python with C11
PEP 7 was recently updated to require a C11 compiler (without optional features) to build Python. I propose to now implement this new requirement:
- Build Python with -std=c11 rather than -std=c99
- Use static_assert() of <assert.h>
It's already documented in What's New in Python 3.11:
Building Python now requires a C11 compiler without optional C11 features. (Contributed by Victor Stinner in bpo-46656.
https://docs.python.org/dev/whatsnew/3.11.html#build-changes