ref: 4a9239723609d4f850b1aa7083b712682027136a 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 }