ref: 1d5a2aa48778960fc9b5ab0b39f83a5322c3f754 dir: /sys/src/boot/mkfile/
ARCH=\ alphapc\ bitsy\ pc\ all:V: for(i in $ARCH)@{ cd $i mk } installall install:V: for(i in $ARCH) @{ cd $i mk install } clean:V: for(i in $ARCH) @{ cd $i mk clean }