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040000 tree 608ee2615557849db5c406225fe21b0d96f6904c	freebsd
040000 tree ea2cbe21ac4c7f99b3d1369e4829a1be98be6899	linux
040000 tree cae7b63f9803b92229bb5eb8e1f0e9a845fe0c79	netbsd
040000 tree ee37388a3c8c86f301b12d6ddd8efd0343f4d8d5	openbsd
040000 tree 3d642425c29c821b21fc9433b3e521010bb73696	posix
040000 tree 88d1b18ff1b4b059456d98cff3733db5aa033ff1	solaris
040000 tree 1827bd2197ac52cdf57b0bdfaa594ed0e27ee500	windows