| Windows: Change ``sysconfig.get_config_var('EXT_SUFFIX')`` to the expected | |
| full ``platform_tag.extension`` format. Previously it was hard-coded to | |
| ``.pyd``, now it is compatible with ``distutils.sysconfig`` and will result | |
| in something like ``.cp38-win_amd64.pyd``. This brings windows into | |
| conformance with the other platforms. |