- Add doc-string with example usage shown in the --help message.
- Add help text for command line arguments.
- Only search for the CMakeCache.txt file when the `--build-dir`
is omitted.
- Write fatal errors to the stderr.
The buildbot will call this script to create a binary .whl file that can be
easily installed through pip.
This wheel will only work with the same Python version used for Blender.
Other minimum system requirements are the same as regular Blender builds.
Includes contributions by Campbell Barton.
Differential Revision: https://developer.blender.org/D15957
