RE: automake 1.16.4 and new PYTHON_PREFIX

[Karl Berry]

Ok, I guess we'll have to revert the Python change and make another
release. I was worried about the change. But I am not sure of how best
to deal with the intended benefits.

Joshua, can you please take a look at these reports and advise?
https://lists.gnu.org/archive/html/automake/2021-08/msg00007.html
https://lists.gnu.org/archive/html/automake/2021-08/msg00006.html

Thanks,
Karl