[mac os] How to build qt 5.15.11 with threaded opengl

Alex L.

Hi

I'm trying to build qt from source to have mac os m1 support.
Qt 5.15.2 works well with threaded opengl.
I built Qt 5.15.11 from source on Big Sur (XCode 13.2.1) and it doesn't have opengl support because of Apple removed it from 10.14+ SDK.
So I installed xcode 9.4.1 (10.13 SDK) on High Sierra and it fails with error:

Preparing build tree...
Creating qmake...
.............................................................................................../Users/qtdev/qt/qt-everywhere-src-5.15.11/qtbase/src/corelib/kernel/qcore_mac.mm:245:13: error: use of undeclared identifier 'backtrace_from_fp'
        if (backtrace_from_fp(__builtin_frame_address(0), &frame, 1))
            ^
1 error generated.
make: *** [qcore_mac.o] Error 1

My question is how qt company builds qt 5.15.x with threaded opengl support?

p.s. I can't use both commercial and metal as project is old and is very tight with opengl.

Alex L.

To build qt 5.15.11+ you need to use High Sierra and XCode 10.0.
Don't use XCode higher than 10.0. I don't guarantee that 10.1, 10.2 or 10.3 would work.