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bug#931: marked as done (23.0.60; Bug in bytecomp.el: displaying warnin


From: Emacs bug Tracking System
Subject: bug#931: marked as done (23.0.60; Bug in bytecomp.el: displaying warnings)
Date: Fri, 12 Sep 2008 13:00:04 -0700

Your message dated Fri, 12 Sep 2008 15:51:59 -0400
with message-id <address@hidden>
and subject line Re: bug#931: 23.0.60; Bug in bytecomp.el: displaying warnings
has caused the Emacs bug report #931,
regarding 23.0.60; Bug in bytecomp.el: displaying warnings
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

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-- 
931: http://emacsbugs.donarmstrong.com/cgi-bin/bugreport.cgi?bug=931
Emacs Bug Tracking System
Contact address@hidden with problems
--- Begin Message --- Subject: 23.0.60; Bug in bytecomp.el: displaying warnings Date: Mon, 8 Sep 2008 21:35:23 +0200
When pop-up-windows is nil, the byte compiler sometimes aborts with
the error message

  End of file during parsing

after displaying warnings, although the source file is ok.


You can reproduce this with CVS Gnu Emacs as follows:

1. Create a file test.el with the following contents:

    (setq a 1)

2. emacs -Q

3. M-: (setq pop-up-windows nil) RET

4. Byte compile test.el


The reason for the bug is an error in `byte-compile-from-buffer'. Its
definition looks like that:

(defun byte-compile-from-buffer (inbuffer &optional filename)
  ...
  (let ...
    (byte-compile-close-variables
     ...
     (displaying-byte-compile-warnings
      ...
      (with-current-buffer inbuffer
        ...
        (while ...
         ...)
        ...)
      ...))
    ...))

If pop-up-windows is nil, and warnings have to be displayed,
`byte-compile-report-error' is called, and after that,
(current-buffer) will be the Compile Log buffer, and the current
buffer is not restored for further iterations of the while loop.






--- End Message ---
--- Begin Message --- Subject: Re: bug#931: 23.0.60; Bug in bytecomp.el: displaying warnings Date: Fri, 12 Sep 2008 15:51:59 -0400 User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.60 (gnu/linux)
>> I've fixed this so set-window-buffer should never change
>> current-buffer now.  Does it fix the OP's original problem?
> Keeping my fingers still crossed for that change, so I can't type much
> today ;-)

> FWIW it fixes the original problem

Good, thanks.

> but we should show *Compile-Log* instead of the original buffer when
> compilation finishes.

That's a separate problem.  And I'm not even sure if that's really what
should happen anyway.

> This could be a wishlist item.

Indeed.


        Stefan


--- End Message ---

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