$ ls -al x y z wlrwxrwxrwx   1 user user    1 Sep 22 17:25 y -> x      <- y is a symbolic link to xw:-rw-r--r--   1 user user    35 Sep 24 00:48 w.inox:-rw-r--r--   1 user user    35 Sep 24 00:48 y.inoz:drwxr-xr-x   2 user user  4096 Sep 24 00:41 z.ino      <- z.ino is a directory$ cat y/y.inovoid setup () { }void loop () { }$ cat w/w.inovoid setup () { }void loop () { }$ arduino-cli  compile --fqbn arduino:avr:nano y(segfaults)$ arduino-cli  compile --fqbn arduino:avr:nano z(segfaults)$ arduino-cli  compile --fqbn arduino:avr:nano w(works)