flyspell-prog-mode and file with non-existing dir

[Klaus Zeitler]

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In GNU Emacs 21.2.2 (sparc-sun-solaris2.7, Motif Version 2.1.0)
 of 2002-04-25 on sfsw54
configured using `configure  --with-gcc 
--prefix=/vol/freeware/SunOS-5.7/emacs/21.2 
--sharedstatedir=/vol/freeware/SunOS-5.7/emacs/21.2/share 
--with-x-toolkit=motif --x-includes=/usr/openwin/include:/usr/local/gnu/include 
--x-libraries=/usr/openwin/lib:/usr/local/gnu/lib --with-pop'
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: C
  locale-coding-system: nil
  default-enable-multibyte-characters: t

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


1. start emacs with -q --no-site-file
2. in scratch buffer execute
   (flyspell-prog-mode)
3. execute find-file for a C file with a typo in the directory name,
   e.g. ~/dir-with-typo/x.c

   this results in

File mode specification error: (file-error "Setting current directory" "no such 
file or directory" "/home/kzeitler/dir-with-typo/")


>From now find-file of all files that want to use flyspell-prog-mode will
result in the same error. More over if there are more functions in the mode 
hook these wont be executed.


Reason:

check-ispell-version fails with the non existing directory, but the
temporary buffer " *ispell-tmp*" wont be killed. Further calls of
check-ispell-version use the existing temporary buffer and immediately
return with the same error (from call-process).
I guess that the call-process call in check-ispell-version needs some
error handling, i.e. catch the error and kill temp buffer.

Workaround is obvious: kill temp buffer " *ispell-tmp*"


Recent input:
<mouse-2> <return> <left> C-j C-x C-f <backspace> <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
<backspace> <backspace> t s t x / x . c <left> <left> 
<left> <left> <backspace> <backspace> <backspace> y 
p o <right> <right> <right> <left> <left> <left> <left> 
<left> <left> <left> d i r - w i t h - <return> C-x 
k <return> C-x C-f <up> <left> <left> <left> <left> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
<backspace> <backspace> <backspace> t s t <return> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <menu-bar> <help-menu> <re
port-emacs-bug>

Recent messages:
Loading tooltip...done
For information about the GNU Project and its goals, type C-h C-p.
Mark set
Use M-x make-directory RET RET to create the directory
Loading cc-mode...done
Loading flyspell...
File mode specification error: (file-error "Setting current directory" "no such 
file or directory" "/home/kzeitler/dir-with-typo/")
Loading flyspell...
File mode specification error: (file-error "Setting current directory" "no such 
file or directory" "/home/kzeitler/dir-with-typo/")
Loading emacsbug...done