040000 tree b70e855c62257238113cf4be129821a08510fee4	commonflags
040000 tree 57f69b682ed02b3c287af1698cf7e8b4be38dd37	ractool
040000 tree aa5449faa16dc7c3528b2583a3a5c3ad2d8635f8	wuffs-c
040000 tree b0e34e6d4a032ec83e8ba064242ab1fe76e5f39a	wuffs
040000 tree 59895acfec27d26dc597b5ebb9de787bf501f79a	wuffsfmt