The `#define` version number bug has now been fixed on pre-releases Ubuntu 26.10 Stonking Stingray and Debian Forky.
In BOTH cases, this `LUA_INCDIR` bug is NOT fixed. To me, this is proof positive that the `#define` version number bug was NOT causing this bug. Proof: https://github.com/cclauss/itinerant-tester/actions/runs/30540143362 <https://github.com/cclauss/itinerant-tester/actions/runs/30392852529/job/90388510036>
