040000 tree cfdb1e0d3536071da7dfbec57aa17f7017ad92eb	building
040000 tree 0631707ce3c509451645890eea74b73564cbc229	cmake_commands
040000 tree 9172e5a63c1572e56feaf5a3c2386b6aea082f44	getting_started
040000 tree 8e0ee4742df931444400a8e3a3b33de92a2fcf6f	intro
040000 tree ed421a06bde39d12599b9dde727280564c758383	subprojects