CMake

Clang-fixes #128

Job	Run time
build (ubuntu-latest, Debug, static, 5.12, x86_64)	1m 31s
build (ubuntu-latest, Debug, static, 6.6.0, x86_64;arm64)	1m 51s
build (ubuntu-latest, Debug, shared, 5.12, x86_64)	2m 40s
build (ubuntu-latest, Debug, shared, 6.6.0, x86_64;arm64)	1m 50s
build (ubuntu-latest, Release, static, 5.12, x86_64)	1m 55s
build (ubuntu-latest, Release, static, 6.6.0, x86_64;arm64)	1m 49s
build (ubuntu-latest, Release, shared, 5.12, x86_64)	3m 32s
build (ubuntu-latest, Release, shared, 6.6.0, x86_64;arm64)	3m 59s
build (windows-latest, Debug, static, 5.12, x86_64)	4m 34s
build (windows-latest, Debug, static, 6.6.0, x86_64;arm64)	3m 24s
build (windows-latest, Debug, shared, 5.12, x86_64)	3m 13s
build (windows-latest, Debug, shared, 6.6.0, x86_64;arm64)	5m 28s
build (windows-latest, Release, static, 5.12, x86_64)	1m 43s
build (windows-latest, Release, static, 6.6.0, x86_64;arm64)	2m 40s
build (windows-latest, Release, shared, 5.12, x86_64)	57s
build (windows-latest, Release, shared, 6.6.0, x86_64;arm64)	3m 34s
build (macos-latest, Debug, static, 5.12, x86_64)	1m 9s
build (macos-latest, Debug, static, 6.6.0, x86_64;arm64)	6m 20s
build (macos-latest, Debug, shared, 5.12, x86_64)	2m 1s
build (macos-latest, Debug, shared, 6.6.0, x86_64;arm64)	3m 34s
build (macos-latest, Release, static, 5.12, x86_64)	1m 34s
build (macos-latest, Release, static, 6.6.0, x86_64;arm64)	4m 55s
build (macos-latest, Release, shared, 5.12, x86_64)	3m 19s
build (macos-latest, Release, shared, 6.6.0, x86_64;arm64)	3m 37s
	1h 11m 9s

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