ref: 52c766d0264b281bac522604c5ab419b3303ed63
dir: /mkfile/
UPSTREAM='https://github.com/cc65/cc65.git'
all clean nuke install:V: upstream bind
@{
cd upstream && mk $target
}
upstream:D: /bin/git/clone
git/clone $UPSTREAM upstream
bind:V: upstream overlay
if(! test -e upstream/mkfile)
overlay mkfiles upstream
if not
status=''
unbind:V: upstream overlay
overlay -u mkfiles upstream