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040000 tree 3c416fce4279b9b69387e3a59de4a114884af1dd	freebsd
040000 tree 4d7cd17084c9be45f8910ec50c1cead16e698cb8	linux
040000 tree e9155a56ff9d9bf55a360f2dc72739914810fde9	openbsd
040000 tree dc582f0d40e6a074648c893d44027195122e5af3	os2
040000 tree 8990197a189e93b33342946a71320d0fc231c408	unix
040000 tree 54c937c274f12fe58741192b4fb5eca677b0a999	windows
040000 tree e89007a899be5bffdc6dc7d183416dc5a773f1ce	winrt