posix

Merge pull request #87 from mattip/wheel #52

Job	Run time
build (ubuntu-latest, i686, 0, 2014)	22m 12s
build (ubuntu-latest, x86_64, 0, 2014)	21m 0s
build (ubuntu-latest, x86_64, 1, 2014)	19m 11s
build (macos-11, x86_64, 0, 2014)	34m 36s
build (macos-11, x86_64, 1, 2014)	35m 26s
build (macos-11, arm64, 1)	21m 53s
build (macos-11, arm64, 0)	24m 6s
build (ubuntu-latest, x86_64, 1, _1_1, musllinux)	25m 50s
build (ubuntu-latest, x86_64, 0, _1_1, musllinux)	20m 2s
	3h 44m 16s

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