Incorrect installation of lib-dynload for custom builds on openSUSE

[intel-hm]

Bug report

Bug description:

from Python-3.13.2.tar.xz

./configure --prefix=$RUN/python/3.13.2
make -j 16
make -j 4 install

dynamic libraries are installed to $RUN/3.13.2/lib64/python3.13/lib-dynload
but internally sys.path uses $RUN/3.13.2/lib/python3.13/lib-dynload

setting a link resolves the

errors that show up:

python3
Could not find platform dependent libraries <exec_prefix>
Python 3.13.2 (main, Mar 18 2025, 10:25:05) [GCC 7.5.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
warning: can't use pyrepl: No module named '_opcode'

pip3 download pip wheel setuptools
...
from _posixsubprocess import fork_exec as _fork_exec
ModuleNotFoundError: No module named '_posixsubprocess'

CPython versions tested on:

3.13

Operating systems tested on:

Linux

[picnixz]

As an openSUSE user, I had this problem as well. I think I did a combination of --exec-prefix=... and altinstall. I can't remember exactly the command and I won't be back until Sunday. I can check at that time.