[Interest] harfbuzz support?

[René J.V. Bertin]

On Sunday April 12 2015 08:21:40 Christoph Feck wrote:

>> Qt can be built with or without support for text rendering using
>> harfbuzz.
>
>Harfbuzz is responsible for layout (positioning) of glyphs, not 
>rendering them to bitmaps.

Doh, I wondered whether I should investigate the true role before asking about it ... guess I should have :)
Sorry for the noise.

The question does remain how this (activating the feature with an env. variable) can work without apparent trace of the library being linked or loaded...

R.