This sole hunk has been extracted from:
https://github.com/abilian/cythonplus-sandbox/commit/a3743de8437e482720c1f441d5a019f18a390df1.patchCo-authored-by: Jerome Dumonteil <jd@abilian.com>
Co-authored-by: Xavier Thompson <xavier.thompson@nexedi.com>

This code has been extracted from:
https://lab.nexedi.com/jjerphan/kdtree/tree/228d5de5a53040f1a46280a6a09576a62c541d4a

This code has originally be written for and vendored in:
https://lab.nexedi.com/xavier_thompson/scan-filesystem