linux

Refactor option getting v2 #17834

Job	Run time
Arch Linux	6m 21s
Arch / PyPy	6m 42s
Ubuntu Rolling (gcc, g++)	20m 18s
CUDA (on Arch)	6m 36s
Ubuntu Rolling (--unity=on -Ddefault_library=static, --no-unittests, gcc, g++)	14m 24s
Fedora	6m 9s
Ubuntu Rolling (-Ddefault_library=both, --no-unittests, gcc, g++)	15m 13s
Gentoo	7m 54s
OpenSUSE	5m 43s
Ubuntu Rolling (clang, clang++)	7m 54s
Ubuntu Bionic	5m 17s
Ubuntu Rolling (--unity=on, --no-unittests, clang, clang++)	1m 50s
Ubuntu Rolling (--cross ubuntu-armhf.json --cross linux-mingw-w64-64bit.json, 0, gcc, g++)	13m 9s
Ubuntu Rolling (--cross ubuntu-armhf.json --cross linux-mingw-w64-64bit.json, --unity=on, gcc, g++)	13m 40s
	2h 11m 10s

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