ref: e391b7ec8c0dc746a70725f3fc598def0419d1e6
dir: /sys/src/9/mkfile/
ARCH=\ arm64\ bcm\ bcm64\ cycv\ kw\ #mtx\ omap\ pc\ pc64\ #ppc\ sgi\ teg2\ xen\ zynq\ 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 }