bug#2284: 23.0.60; error in compilation-mode, link to files don't work

[Peter Feigl]

Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your bug report will be posted to the emacs-pretest-bug@gnu.org mailing list.

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

*Backtrace*:
Debugger entered--Lisp error: (wrong-type-argument window-live-p nil)
  select-window(nil nil)
  pop-to-buffer(#<buffer MultiOptimizer.h> other-window)
  compilation-goto-locus(#<marker at 2343 in *compilation*> #<marker at 786 in 
MultiOptimizer.h> nil)
  compilation-next-error-function(0 nil)
  next-error-internal()
  compile-goto-error(return)
  call-interactively(compile-goto-error nil nil)

the problem seems to be that line 1210 in window.el
    (setq new-window (display-buffer buffer other-window))
sets new-window to nil

If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
If you would like to further debug the crash, please read the file
/usr/share/emacs/23.0.60/etc/DEBUG for instructions.


In GNU Emacs 23.0.60.1 (x86_64-unknown-linux-gnu, GTK+ Version 2.14.6)
 of 2009-01-15 on home.sergej.pp.ru
Windowing system distributor `The X.Org Foundation', version 11.0.10503000
configured using `configure  '--prefix=/usr' '--localstatedir=/var/lib/emacs' 
'--libexecdir=/usr/lib/emacs' '--with-xpm' '--with-jpeg' '--with-tiff' 
'--with-gif' '--with-png' '--with-x-toolkit=gtk' '--without-sound' 
'--enable-font-backend' '--with-freetype' '--with-xft' '--with-libotf' 
'CFLAGS=-march=x86-64 -mtune=generic -O2 -pipe''

Important settings:
  value of $LC_ALL: en_GB.UTF-8
  value of $LC_COLLATE: C
  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: en_GB.utf8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: Debugger

Minor modes in effect:
  jabber-activity-mode: t
  display-time-mode: t
  shell-dirtrack-mode: t
  diff-auto-refine-mode: t
  rcirc-track-minor-mode: t
  show-paren-mode: t
  iswitchb-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t