Custom manual installation within a dedicated 'build' directory, in a proot-distro alias of Debian chroot, in a Termux host environment: require `make install` instructions, post-successful BAT test, and successful custom make about pyenv HOT 1 OPEN

as I could find no express instructions for a manual installation within the README.md or within the locally cloned repository, other than the rudimentary git clone instructions

https://github.com/pyenv/pyenv?tab=readme-ov-file#installation

Git clone instructions are not "rudimentary", it's one of the supported installations schemes.

not ok 85 non-writable shims directory
# (from function `flunk' in file /root/.pyenv/test/test_helper.bash, line 42,
#  from function `assert_failure' in file /root/.pyenv/test/test_helper.bash, line 56,
#  in test file /root/.pyenv/test/rehash.bats, line 24)
#   `assert_failure "pyenv: cannot rehash: ${PYENV_ROOT}/shims isn't writable"' failed
# expected failed exit status
#  output:

This should not be a big deal in your case. This test checks that non-writable shims directory is correctly handled by Pyenv logic. You can see the test's code at

Eleventh, all that remains is a make install, post-successful make.

Not needed. Pyenv is written in Bash so it doesn't require compilation. Makefile is only needed to run tests (which is mainly useful for development) and to build an optional shell extension that speeds up some internal operations. An instruction to build the extension is present in the Basic Git checkout README section as it's only needed when using this installation scheme.

from pyenv.