external and internal CI has $RPATH/DPCTLSyclInterface.dll not found issue

[jharlow-intel]

2025-10-03T16:39:21.5483142Z   Warning: (dpctl,Lib/site-packages/dpctl/_sycl_event.cp310-win_amd64.pyd): $RPATH/DPCTLSyclInterface.dll not found in packages, sysroot(s) nor the missing_dso_whitelist.
2025-10-03T16:39:21.5484061Z .. is this binary repackaging?

We maybe need to adjust CMAKE or something, I'm not sure.

The above is merely a warning in our CI, but it's an ERROR for the conda-forge CI. We need to fix this.

Either we fix how it's installed, or we add it to the missing_dso_whitelist.

Thoughts @ndgrigorian @antonwolfy ? I don't want to add it to the missing_dso_whitelist without understanding if it somehow comes from a different package or not, but it looks really doubtful.

[jharlow-intel]

After looking at the source more, I'd say this .dll file really ought to not be missing from our windows builds

[jharlow-intel]

I've looked into this and decided it's a false positive - this file is present during test time, which would be impossible if it was truly missing during the end of the build. I think the windows DLL scanner is actually failing to scan the $PATH\DPCTLSyclInterface.dll string pattern or something, rather than the file actually being missing.

So for now, I say we can in fact add it to the ignored list, but we should maybe see why it's using that funky looking path eventually.

[jharlow-intel]

PR opened for it #2167