040000 tree daee0232418439ae8075134e6aac86d38b66935a	automake
040000 tree 0cdaef585835e713d62b14656bb4dc571999e23d	bison
040000 tree 2b1aa7ed997022011df349cc4eda792cf885c724	flex
040000 tree 785e9e8a10d5d5d89d5c3615df9f0671b9115147	mpfr