ref: f7a16b5e2cc38aed7985b0144bb2655d14ea6f5a dir: /sys/src/cmd/cb/mkfile/
</$objtype/mkfile TARG=cb OFILES=\ cb.$O\ cbtype.$O\ HFILES=cb.h\ cbtype.h\ BIN=/$objtype/bin UPDATE=\ mkfile\ $HFILES\ ${OFILES:%.$O=%.c}\ < /sys/src/cmd/mkone