ref: d12cd57c7b7c462deb644c2056e8906e2fee4b93
dir: /sys/src/cmd/btc/mkfile/
</$objtype/mkfile TARG=httpfs sign genkey BIN=/$objtype/bin/btc OFILES=\ json.$O\ HFILES=\ dat.h\ default:V: all $BIN: mkdir $BIN install: $BIN </sys/src/cmd/mkmany $O.httpfs: fs.$O