WIP: cerbero: Add meson build-tools egg to PYTHONPATH manually
This is needed on operating systems that ship with setuptools 49.0.0. Currently this is only Arch Linux, but soon it will be more, including Windows and macOS.
https://github.com/pypa/setuptools/issues/2295
This implementation is incomplete because it won't work for build-tools recipes that need meson, such as glib-tools. We should probably write out a site.py
inside pypath
that does this instead?
Edited by Nirbheek Chauhan