+ /* The mkdir and stat calls below appear to be reversed.
+ They are not. It is important to call mkdir first and then to
+ call stat (to distinguish the three cases) only if mkdir fails.
+ The alternative to this approach is to `stat' each directory,
+ then to call mkdir if it doesn't exist. But if some other process
+ were to create the directory between the stat & mkdir, the mkdir
+ would fail with EEXIST. */
+