[Interest] Mac: a bit of 10.9 love

[René J.V. Bertin]

On Thursday August 03 2017 17:11:56 Allan Sandfeld Jensen wrote:

> Didn't Qt only drop support for building on 10.9? I am pretty sure you should 
> be able to build on 10.10+ and deploy to 10.9 if you wish. Though I can see 

Nope, sadly that's not the case (and I doubt it was the intention either). You can still install Qt 5.9.1, once you figure out how to run the installer - last time I tried even the MaintenanceTool.app insisted on self-updating to a new version that crashed immediately because of missing symbols referenced from the cocoa QPA. I filed a QTBUG-61800 about that because it made it impossible to update even supported Qt versions on OS versions not supported by the latest Qt version.

The workaround trick I found was to force Qt to use the generic Unix QPA, which is good enough for basic installers but evidently not for a meaningful user experience.

On Thursday August 03 2017 15:14:52 Alexandru Croitor wrote:
> Iirc the minimum deployment version was bumped to 10.10 in qt 5.9. That was also a change we had to do in webengine 

I'm expecting to run into >=10.10 requirements elsewhere in Qt 5.9 when I get around to building it, and I was already afraid that QWE would require more attention than I really care to give it (it's way too big to start hacking around in) ... But, "had to" as in "were obliged to" rather than "chose to"? Why - the BT code that already required using the 10.10 SDK maybe? All incompatibilities I've seen in the style and QPA were quite trivial to address (except for those requiring the "full" 10.10 SDK which 10.9 never got).

With some luck it will still be possible to build QWE 5.8 against Qt 5.9 though, should there be too much to reintroduce (and I wouldn't mind either dropping BT support either in my build).

R.