===> Building for glasgow-0.0.20240810nb1
* Building wheel...

Traceback (most recent call last):
  File "/opt/pkg/lib/python3.12/site-packages/pyproject_hooks/_impl.py", line 402, in _call_hook
    raise BackendUnavailable(
pyproject_hooks._impl.BackendUnavailable: Cannot import 'pdm.backend'

ERROR Backend 'pdm.backend' is not available.
*** Error code 1

Stop.
bmake[1]: stopped making "all" in /Volumes/data/jenkins/workspace/pkgsrc-macos-trunk-arm64/devel/glasgow
*** Error code 1

Stop.
bmake: stopped making "all" in /Volumes/data/jenkins/workspace/pkgsrc-macos-trunk-arm64/devel/glasgow