[Cygwin] Composing mail does not work with auto-saving turned on

[Christian Gudrian]

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Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

When trying to compose a mail via M-x mail the mail buffer does not
show up.  Instead I get the error message `Opening output file: no
such file or directory, /home/Gudrian/#*mail*#1824XsA#'.  The file
name differs from call to call, of course.

If I turn off auto saving, composing mail works.  However, auto saving
itself works perfectly for ordinary buffers.


In GNU Emacs 21.3.50.1 (i686-pc-cygwin, X toolkit, Xaw3d scroll bars)
of 2004-06-11 on apollo
configured using `configure '--disable-maintainer-mode' 'CFLAGS=-O2 
-march=pentium4' 'PREFIX=/newroot''

Important settings:
 value of $LC_ALL: nil
 value of $LC_COLLATE: nil
 value of $LC_CTYPE: nil
 value of $LC_MESSAGES: nil
 value of $LC_MONETARY: nil
 value of $LC_NUMERIC: nil
 value of $LC_TIME: nil
 value of $LANG: de
 locale-coding-system: iso-latin-1
 default-enable-multibyte-characters: t

Major mode: Mail

Minor modes in effect:
 show-paren-mode: t
 tool-bar-mode: t
 mouse-wheel-mode: t
 menu-bar-mode: t
 global-font-lock-mode: t
 unify-8859-on-encoding-mode: t
 column-number-mode: t
 line-number-mode: t
 transient-mark-mode: t

Recent input:
<help-echo> M-x m a i l <return> M-x s e t - v a r
i a <tab> <return> a u t o - s a v <tab> d e f <tab>
<return> n i l <return> M-x m a i l <backspace> <backspace>
<backspace> <backspace> r e p o r <tab> <return>

Recent messages:
Loading tooltip...done
Loading paren...done
Loading iso-insert.el (source)...done
Loading font-lock...done
Loading jit-lock...done
Loading sendmail...done
byte-code: Opening output file: no such file or directory, 
/home/Gudrian/#*mail*#1588C2A#
Loading help-fns...done
Loading easymenu...done
Loading emacsbug...done