use global setup with bats with possibility to add specific test file _setup
use readlink in helper if realpath is not working as expected

Make sur that PYENV_TEST_DIR is created if mktemp failed
mock python3 usage by updating create_executable function
fix test by adding the right PATH
update path in plugin test
replace for loop with while read
don't use symlink for stub

Did not implement customizable priority due to unclear use feedback and more compilation in the code, can decide and do that separately

Tcl/Tk from MacPorts support is omitted due to CPython's only being compatible with 
Tcl/Tk 9 since 3.12.5 and 3.13.0.

Co-authored-by: Ivan Pozdeev <vano@mail.mipt.ru>

Mainly for tests, to avoid having to adjust call counts for stubs when the logic changes

add test to test all the flag types

Easy syncing with Rbenv is not as important now

XCode Command Line Tools 15.0 was recently released, and it contains a
broken version of ncurses 6.0. Some uses of Python's `curses` module
will segfault when compiled with it. The solution is to switch to using
the version of ncurses from Homebrew, which is currently 6.4. Support
for ncurses 6 was added to Python 3.7 and was backported to 3.6 and 2.7,
so this change should not break any recently supported Python versions.

Tested with Python 3.12, 3.11, and 2.7, and all tests in
the `test.test_curses` module pass without issue.

See https://github.com/python/cpython/issues/109617 and
https://github.com/python/cpython/issues/69906 for more information.

Guthub have recently preinstalled x64 Homebrew OpenSSL to stock MacOS runners. This has caused FreeBSD OpenSSL detection logic to erroneously trigger when running FreeBSD tests in MacOS because their paths happened to coincide.

Replaced checking a specific path with checking with pkg.

Without rpath, python would link up to the system's libpython

Surprisingly, CPython doesn't search these with pkg-config
This is fixed upstream in 3.12.0a1

CPython 3.11+ dropped support for --with-tcl-tk-*
in favor of pure pkgconfig

Since 3.12, CPython can provide debug symbols in
Apple's nonstandard way, "dSYM bundles"

In Linux, it's not the primary source of packages and
cannot be used without build flag adjustments
thus has caused build failures.

This is needed to find other Python deps (e.g. libintl) in Homebrew if it has
nonstandard prefix (e.g. in Apple M1)

* Re-allow to search Homebrew for zlib everywhere

Link to the active version like other Homebrew deps --
this won't break when another binary-compatible version is installed.
Use a discovery method that doesn't break when other versions are present alongside.

* feat(python-build): allow tcl-tk as argument or default to homebrew
* refactor(python-build): detect tcl-tk-libs from confugre_opts_arr

fixes #1219, #1333

Because the variables specified via command-line arguments for the
`./configure` will be favored than one in environment variables,
setting those variables in `PACKAGE_CONFIGURE_OPTS_ARRAY` will hide
existing environment variables.

To avoid the problem, stop using `package_option()` to setup those
variables.