040000 tree 0002aaec19a29e315a9f0b8a80b3f03b6fb1640b	build
040000 tree 6cc362cfe66e5f268f0c0422537e665a1e731d1b	core
040000 tree c652b85ad9919b4191866ab4a94e3a99a52d8d41	cpp
040000 tree ed835ebab1d409ec3513f439d99b29cd2d852976	distrib