Please remove 3.14 from this review; it is not currently maintained by the Python team for reasons I will only explain privately.

• update to 80.10.2

Hmm…not sold on this either.

This is not an outright rejection, but rather would like to see the meld test suite in action first. They have still not released anything apart from the odd-numbered development release series.

remove typing-extensions from RUN_DEPENDS, only needed for < 3.10

• rebase
• use ${PY_TOMLI} shorthand and remove Python < 3.10 stuff

fix botched rebase

• update to 9.2.2

No longer immediately relevant after the revert. Worth discussing the venn diagram regarding __ISO_C_VISIBLE et al since there are gotchas in C as well.

revert to initial diff

use __STDC_VERSION__ to ensure visibility only on C23 and later

There shouldn't be C23-compliant codebases that define their own unreachable(). Based on my understanding of sys/sys/_visible.h, it looks like __ISO_C_VISIBLE is getting defined as 2023 almost unconditionally, at least in base, so it leaked into jemalloc. It may leak into other C codebases if a standard is not explicitly passed or other macros defined during build steps.

In D53433#1232130, @michaelo wrote:

@vishwin Have you had time to check the updated patch? The distutils approach is now behind a switch, being an opt-in.