[Interest] AAT and harfbuzz

[René J.V. Bertin]

Hello,

I've been meaning to ask about a warning I started noticing with Qt 5.8:

WARNING: On OS X, AAT is supported only with -qt-harfbuzz

How should I interpret this exactly? Does it really mean that Qt 5.8 won't be able to use AAT if I link against MacPorts' harfbuzz 1.4.1, presumably because it lacks certain patches? Yet the version included with Qt seems quite a bit less recent...

Thanks,
R.