bug#543: Random "Regular expression too big"

[Rob Emanuele]

Randomly on startup Emacs will exit with the error "Invalid regex:
Regular expression too big".  Sometime this error will popup on a
save, set fontset, or some other task.  I can't put any rhyme or
reason to it.

Others are reporting it too:
http://fcp.surfsite.org/modules/newbb/viewtopic.php?topic_id=58509&forum=10&post_id=273136


In GNU Emacs 22.1.1 (x86_64-redhat-linux-gnu, GTK+ Version 2.12.5)
 of 2008-05-23 on xenbuilder2.fedora.redhat.com
Windowing system distributor `The X.Org Foundation', version 11.0.10300000
configured using `configure  '--build=x86_64-redhat-linux-gnu'
'--host=x86_64-redhat-linux-gnu' '--target=x86_64-redhat-linux-gnu'
'--program-prefix=' '--prefix=/usr' '--exec-prefix=/usr'
'--bindir=/usr/bin' '--sbindir=/usr/sbin' '--sysconfdir=/etc'
'--datadir=/usr/share' '--includedir=/usr/include'
'--libdir=/usr/lib64' '--libexecdir=/usr/libexec'
'--localstatedir=/var' '--sharedstatedir=/usr/com'
'--mandir=/usr/share/man' '--infodir=/usr/share/info'
'--with-x-toolkit=gtk' '--with-sound' '--with-toolkit-scroll-bars'
'build_alias=x86_64-redhat-linux-gnu'
'host_alias=x86_64-redhat-linux-gnu'
'target_alias=x86_64-redhat-linux-gnu' 'CFLAGS=-DMAIL_USE_LOCKF -O2 -g
-pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector
--param=ssp-buffer-size=4 -m64 -mtune=generic''

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: en_US.UTF-8
  locale-coding-system: utf-8
  default-enable-multibyte-characters: t

Major mode: Emacs-Lisp

Minor modes in effect:
  tooltip-mode: t
  tool-bar-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  auto-compression-mode: t
  line-number-mode: t

Recent input:
<down> <help-echo> <help-echo> <down-mouse-5> <mouse-5>
<down-mouse-4> <mouse-4> <double-down-mouse-4> <double-mouse-4>
<help-echo> M-x b u <tab> <help-echo> <backspace> <backspace>
r e p o <tab> r t <tab> <return>

Recent messages:
Loading /usr/share/emacs/site-lisp/site-start.d/rpm-spec-mode-init.el
(source)...done
For information about the GNU Project and its goals, type C-h C-p. [2 times]
byte-code: Beginning of buffer
Making completion list...
Loading help-mode...done
Making completion list...
Loading emacsbug...
Loading regexp-opt...done
Loading emacsbug...done
Undo!