posix

patch to attribute ((visibility ("default"))) on exported functions #645

Job	Run time
build (ubuntu-latest, x86_64, 0, 2014, manylinux)	16m 10s
build (macos-latest, arm64, 0, macosx)	10m 19s
build (macos-14, x86_64, 0, macosx)	12m 47s
build (ubuntu-latest, x86_64, 1, 2014, manylinux)	16m 1s
build (ubuntu-latest, x86_64, 0, _1_2, musllinux)	15m 56s
build (ubuntu-latest, i686, 0, 2014, manylinux)	14m 2s
build (macos-14, x86_64, 1, macosx)	16m 34s
build (ubuntu-24.04-arm, aarch64, 0, 2014, manylinux)	10m 23s
build (ubuntu-24.04-arm, ppc64le, 1, 2014, manylinux)	33m 48s
build (ubuntu-24.04-arm, aarch64, 0, _1_2, musllinux)	9m 48s
build (macos-latest, arm64, 1, macosx)	11m 34s
build (ubuntu-latest, x86_64, 1, _1_2, musllinux)	15m 33s
build (ubuntu-24.04-arm, ppc64le, 0, 2014, manylinux)	34m 0s
build (ubuntu-24.04-arm, s390x, 0, 2014, manylinux)	29m 4s
build (ubuntu-24.04-arm, s390x, 1, 2014, manylinux)	27m 35s
build (ubuntu-24.04-arm, aarch64, 1, _1_2, musllinux)	9m 39s
build (ubuntu-24.04-arm, aarch64, 1, 2014, manylinux)	9m 50s
	4h 53m 3s

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