bug#16133: 24.3; copy-file fails on chmod when copying to FAT filesystem

[Eli Zaretskii]

> Date: Sat, 21 Dec 2013 16:01:07 -0800
> From: Paul Eggert <eggert@cs.ucla.edu>
> CC: Artem Chuprina <ran@lasgalen.net>, Eli Zaretskii <eliz@gnu.org>
> 
> > That's what "cp -p" does, FWIW.
> 
> I just checked the source code, and it looks like 'cp -p'
> reports an error if fchmod fails

It reports an error, but keeps copying the rest of the files.

> so trunk Emacs is behaving similarly to GNU cp here.

No, it doesn't: Emacs throws an error, and stops the copy operation,
even if there are more files to copy.

The suggestion was to report an error, but not throw to top level.