[us-commits] [ehb54/ultrascan3] d689ce: Robustly detect sphinx-build/python3 for DOMAN doc...

[emre brookes]

  Branch: refs/heads/ehb54-issue-925
  Home:   https://github.com/ehb54/ultrascan3
  Commit: d689ce8f674d78d26e7bff34f3928a4950f933af
      https://github.com/ehb54/ultrascan3/commit/d689ce8f674d78d26e7bff34f3928a4950f933af
  Author: ehb54 <brookes at uthscsa.edu>
  Date:   2026-06-22 (Mon, 22 Jun 2026)

  Changed paths:
    M makeall.sh

  Log Message:
  -----------
  Robustly detect sphinx-build/python3 for DOMAN doc build on RHEL8

RHEL8 variants ship a too-old default python3 (3.6) plus optional
python3.11/python3.12 packages with no sphinx-build shim on PATH,
so the existing "which sphinx-build" check frequently misses a
working installation. Search candidate interpreters newest-first,
self-install Sphinx via ensurepip/pip if needed, and shim a scoped
python3 symlink on PATH only for the doc make step when the chosen
interpreter isn't named python3.

Fixes ultrascan-tickets#925



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