https://github.com/dlang/dmd/commit/801742d93ecb6c929409a19c024dd87ca25330a3 introduced a symlink dmd repo; if a user clones it inside a Dropbox (or google drive) and syncs his dropbox to another machine, it will create havoc:

* google drive doesn't support symlinks at all
* dropbox supports it in a horrible way, resolving symlinks, leading to
duplicating the folder that's being symlinked on the 2nd machine:
http://askubuntu.com/questions/452714/is-dropbox-going-to-always-resolve-my-symlinks
,