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040000 tree 922f793d78edd08f5639c0d361675899dcf1a17c	bsd
040000 tree 8a931e3460d4d6d25758c0676426322599be4e88	linux
040000 tree cef1ee68f083ba3fa67eef899091a7345d070c0e	posix
040000 tree db16151ae30a10db5e4bdd2657af3f31fb8ff1f6	solaris
040000 tree 0766d2ea5013e96e52fe7bac461532a60923cb03	windows