Merge pull request #825 from ElderOrb/#822 #469

Job	Run time
build-macos-brew (clang-9)	3m 0s
build-macos-no-brew (clang-9)	5m 18s
build-linux (gcc-9)	7m 12s
build-linux-Qt6 (gcc-9)	7m 59s
build-macos-no-brew-Qt6 (clang-9)	5m 32s
build-macos-brew-Qt6 (clang-9)	3m 25s
build-windows-mingw (5.15.*)	10m 5s
build-windows-mingw-Qt6 (6.3.0, qtmultimedia qt5compat)	11m 46s
build-windows-vs-Qt6 (6.3.0, qtmultimedia qt5compat)	12m 59s
build-windows-vs (5.15.*)	8m 24s
	1h 15m 40s

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