According to PEP 632 [1], the distutils module is considered deprecated
in Python 3.10 and will be removed in Python 3.12. Setup scripts
using it should be migrated to the setuptools module, which contains
drop-in replacements for distutils functions [2]. The catch is that the
setuptools module is not part of the Python Standard Library.
While this problem could be addressed by adding a hard dependency on
setuptools, it only affects BIND 9.16, which is an Extended Support
Version. To avoid unnecessary disruptions, try importing setup() from
the setuptools module and fall back to using distutils if that fails.
Add a PyLint suppression for this specific "deprecated-module" warning.
Since the setuptools module is not part of the Python Standard Library
and therefore it is not guaranteed that it is universally available in
every Python installation, update Python-related checks in configure.ac
to ensure Python module installation does not silently fail.
[1] https://peps.python.org/pep-0632/
[2] https://setuptools.pypa.io/en/latest/deprecated/distutils-legacy.html
This commit converts the license handling to adhere to the REUSE
specification. It specifically:
1. Adds used licnses to LICENSES/ directory
2. Add "isc" template for adding the copyright boilerplate
3. Changes all source files to include copyright and SPDX license
header, this includes all the C sources, documentation, zone files,
configuration files. There are notes in the doc/dev/copyrights file
on how to add correct headers to the new files.
4. Handle the rest that can't be modified via .reuse/dep5 file. The
binary (or otherwise unmodifiable) files could have license places
next to them in <foo>.license file, but this would lead to cluttered
repository and most of the files handled in the .reuse/dep5 file are
system test files.
(cherry picked from commit 58bd26b6cf)
