CMake improvements #2040

Job	Run time
check-docs	1m 59s
check-lockfile-version	8s
check-submodules	48s
linux-compat (al2012-x64)	4m 33s
linux-musl-armv7 (alpine-3.16-x64)	28m 23s
macos	4m 1s
linux-compat (al2-x64)	5m 53s
linux-compiler-compat (clang-3)	6m 19s
linux-compat (manylinux2014-aarch64)	26m 55s
linux-compiler-compat (clang-6)	6m 36s
linux-compat (manylinux2014-x64)	5m 5s
macos-x64	6m 12s
linux-compiler-compat (clang-8)	6m 9s
musl-linux (alpine-3.16-x64)	5m 41s
linux-compat (fedora-34-x64)	4m 44s
linux-compat (opensuse-leap)	5m 10s
linux-compiler-compat (clang-9)	7m 3s
linux-compat (rhel8-x64)	4m 45s
linux-compiler-compat (clang-10)	6m 40s
windows	8m 46s
linux-compat (raspbian-bullseye)	26m 40s
windows-vc14-x86	9m 46s
linux-compiler-compat (clang-11)	6m 0s
linux-compiler-compat (clang-15)	5m 52s
linux-compiler-compat (gcc-4.8)	4m 48s
linux-compiler-compat (gcc-5)	4m 50s
linux-compiler-compat (gcc-6)	4m 53s
linux-compiler-compat (gcc-7)	4m 40s
linux-compiler-compat (gcc-8)	5m 7s
linux-compiler-compat (gcc-11)	5m 11s
	3h 43m 37s

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