https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117993
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #2)
> Confirmed. Fails with 20240727 but worked with 20240710 .
I suspect r15-2117-g313afcfdabeab3 (which is in the time frame).
```
.... and
qualified lookup finds nothing at template definition time, then we
know it'll find nothing at instantiation time (unless the current
instantiation has dependent bases).
```
I suspect for some reason we think the current instantiation does not have a
dependent base for some reason.
