bug#4197: 23.1; error when try to run `server-start': directory .emacs.d/server is unsafe

[Eli Zaretskii]

> From: Stefan Monnier <monnier@iro.umontreal.ca>
> Cc: 4197@emacsbugs.donarmstrong.com,  "'Eli Zaretskii'" <eliz@gnu.org>
> Date: Sat, 22 Aug 2009 00:49:03 -0400
> 
> > I think Emacs should be able to coexist and behave nicely with FAT32 - don't
> 
> IIUC how Windows on FAT32 works, using emacsserver on such a system
> means that any process running on this machine (from your own user or
> any other user) can control your Emacs session.

That's true.  There's no file security on FAT32 volumes.

I was thinking about displaying yes-or-no-p prompt with a warning to
that effect, but if the user consents, letting them to proceed.  Maybe
we should do that on Posix as well, instead of flatly refusing to run.

WDYT?