Modules/_sha3 is created by configure, but no longer an actual source directory

[smontanaro]

Bug report

I noticed that make distclean didn't compare correctly with a fresh clone (after accounting for files I expected it wouldn't be expected to clean up). It left an empty Modules/_sha3 directory which used to hold files, but which is simply created by configure, then ignored.

Your environment

• main branch
• MacOS Ventura 13.4.1, Apple M1

Linked PRs

• gh-106123: Modules/_sha3 appears to no longer be necessary #106124
• [3.12] gh-106123: Modules/_sha3 appears to no longer be necessary (GH-106124) #106127