[_(unless(path?dir-of-source)(error'anytime-path"syntax source has no directory: ~v",source))]
[syntax-to-root(build-pathdir-of-source,to-root)]
[root(if(directory-exists?syntax-to-root)
;; running on the same filesystem it was compiled on, i.e. it's running the source code out of a directory, and the complication is the intermediate compilation