4.4.2 breaks kio 5.116.0 on some platforms

The timing fits, so I suspect that the update from 4.4.0 to 4.4.2 in pkgsrc broke the build of kio 5.116.0 on a couple platforms.

Here’s an example build log:

https://releng.netbsd.org/pkgreports/shadow/HEAD/NetBSD-11.0-x86_64/20260802.1144/kio-5.116.0nb12/configure.log

from a NetBSD 11.0/x86_64 build; I see the same on 11.99.7, and here’s a build on SmartOS:

https://reports.pkgci.org/SmartOS/upstream/trunk/20260802T225326Z/kio-5.116.0nb12/configure.log

All the places I could find in the code look like this:

if(ACL_FOUND)
target_link_libraries(KF5KIOCore PRIVATE ${ACL_LIBS})
endif()

which I thought should be safe. Any ideas?

Thanks,
Thomas