040000 tree 7b8943083cfab11fd6c5e84687fad6245fe11062	aix
040000 tree 62f31da6db3cf165853ce9ca9bf9b0d0f65e66cb	bsd
040000 tree 35bf6dba58e99afcce60f0734cce5bd60c256510	linux
040000 tree 83ccc03dc7a0e611da1d87aef25c2befb6a6caab	posix
040000 tree 6a5805d9c1807a385a6eba6ba6c1e1c6ec5449ab	solaris
040000 tree ba2c02d517943685f997de03ed84f7329a2eff66	windows