On 2024/09/20 12:43, Stuart Cassoff wrote:
> Private files aren't meant to be installed. They're in the 8.5 package mostly for historical
> reasons or older ports.
> Instead of using MODULES you could try setting BUILD_DEPENDS for 8.5 and WANTLIB and
> RUN_DEPENDS for 8.6.
> Something like that, maybe other vars as well.

That (building against private headers for an old Tk version which isn't
the version running the extension) seems like a worse idea than building
against current version private headers (whether they come from a :patch
target or from the package).