040000 tree 4b6a992de9381041edfeb1cb98d4e041ff83bf41	android
040000 tree 3f66be0d65fbd1a17cd3e894c6cbb83c2ab9951c	freebsd
040000 tree 652a33807f5ee03dfd82ab14c0dbe0497c2f5ecc	linux
040000 tree 8684f16c9885b661c40497140a302fad66c87565	openbsd
040000 tree 5eca21a34e83010691de11652e13dbcf58df2152	os2
040000 tree 023be55188c27db32cae8d2559cecb716baf4704	unix
040000 tree db66ca96acb41c4fcf8a4787eddbc0276172e4c8	windows
040000 tree b8195282616969ae15fff6226ac68e9c22379b90	winrt