bug#6121: 24.0.50; setting-constant enable-multibyte-characters

[Stefan Reich=f6r]

I found a problem with gnus from a recent emacs:

Sadly it depends on a confidential email.
However, I hope that the backtrace below will be sufficient to fix the problem:

,----
| Debugger entered--Lisp error: (setting-constant enable-multibyte-characters)
|   set-default(enable-multibyte-characters nil)
|   message-forward-make-body-mml(#<buffer  *Original Article*>)
|   message-forward-make-body(#<buffer  *Original Article*> nil)
|   message-forward(nil)
|   gnus-summary-mail-forward(nil)
|   call-interactively(gnus-summary-mail-forward nil nil)
`----



In GNU Emacs 24.0.50.1 (i686-pc-linux-gnu, GTK+ Version 2.16.1)
 of 2010-04-29 on pchagakli
Windowing system distributor `The X.Org Foundation', version 11.0.10600000
configured using `configure  '--prefix=/home/srei/prg/stow/emacs''

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_AU.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: Debugger

Minor modes in effect:
  desktop-save-mode: t
  icomplete-mode: t
  global-cwarn-mode: t
  diff-auto-refine-mode: t
  global-auto-revert-mode: t
  shell-dirtrack-mode: t
  recentf-mode: t
  cua-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
n n <C-f1> M-x g n u s <return> y M-x t o g g l e - 
d e <tab> e <tab> <return> <f8> <down> <down> <down> 
<down> <down> <return> M-u <up> C-c C-f C-x h M-w M-x 
e m a c s - r e <backspace> <backspace> <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
r e p o r t <tab> <return>

Recent messages:
debug-on-error is now t [2 times]
Retrieving newsgroup: nnml:mail.msc-ge...
Fetching headers for nnml:mail.msc-ge...done
Scoring...done
Generating summary...done
Parsing BBDB... (frobnicating...done) [2 times]
Registry: article <m0fx25wm4i.fsf@totally-fudged-out-message-id> spooled to 
drafts
Entering debugger...
Mark set [2 times]
Scanning for dabbrevs...100%

Load-path shadows:
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/home/srei/site-lisp/cedet/speedbar/speedbar hides 
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/home/srei/site-lisp/cedet/eieio/eieio hides 
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/home/srei/site-lisp/cedet/semantic/semantic hides 
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/home/srei/site-lisp/cedet/srecode/srecode hides 
/home/srei/prg/stow/emacs/share/emacs/24.0.50/lisp/cedet/srecode

Features:
(shadow dabbrev emacsbug help-mode cedet-edebug debug bbdb-gui gnus-cite
smiley gnus-async gnus-bcklg qp gnus-ml disp-table gnus-topic parse-time
nnfolder pop3 nnml nndraft nnmh bbdb-gnus bbdb-snarf mail-extr
gnus-agent gnus-srvr gnus-score score-mode nnvirtual gnus-cache
sigbegone spam spam-stat gnus-uu yenc gnus-namazu gnus-alias
gnus-registry netrc nntp tex-buf vhdl-mode mmm-mode mmm-univ mmm-class
mmm-region mmm-utils reftex-vcr reftex-dcr reftex-auc noutline outline
latex tex-style semantic-decorate-mode semantic-decorate pulse
semanticdb-find semanticdb-ref vc-hg xhg-dvc vc-svn vc-arch gnus-dired
ede-dired python-live-update xte ger-userdata moinmoin-mode linkd
semanticdb-file semantic-edit semantic-el semantic-bovine bovine-debug
semantic-debug planner-registry planner-deadline planner-trunk
planner-psvn xhg xhg-annotate xhg-mq xhg-log bzr-submit bzr dvc-annotate
bzr-gnus xgit-gnus xhg-gnus midnight dar deutsch-alt-neu ion3 grmon view
holidays hol-loaddefs tla smerge-mode dvc-state dvc-config dvc-diff
dvc-fileinfo diff tla-gnus dvc-gnus dvc-cmenu dvc-about dvc-version
dvc-revlist ede-simple cedet-files ede-linux ede-emacs ede-cpp-root
desktop filecache woof progr-align pwsafe remind-mode quick-task x-dict
diminish babel url-handlers mm-url url url-proxy url-privacy url-expand
url-methods url-history url-cookie url-util url-parse url-vars w3m-wget
webjump browse-url mkback mmm-auto mmm-vars mmm-compat tmmofl
mouse-embrace xwindow-ring saveplace live-mode defaultcontent toc align
boxes longlines ireplace findr findstr igrep ange-ftp grep tempbuf
keep-buffers minibuffer-complete-cycle icomplete browse-kill-ring
generic-dl generic-menu misc newcomment planner-diary
planner-tasks-overview planner-accomplishments planner-gnus gnus-msg
gnus-art mm-uu mml2015 epg-config mm-view smime dig mailcap gnus-sum
nnoo gnus-group time-date gnus-undo nnmail mail-source gnus-start
gnus-spec gnus-int gnus-range gnus-win gnus gnus-ems nnheader
planner-multi crm planner-id planner-bbdb planner sort muse-latex
muse-html muse-xml-common muse-wiki muse-colors pcomplete cus-edit
cus-start cus-load muse-publish muse-project muse-protocols muse-regexps
muse muse-nested-tags muse-mode message sendmail rfc822 mml mml-sec
mm-decode mm-bodies mm-encode mail-parse rfc2231 rfc2047 rfc2045
ietf-drums mm-util mail-prsvr mail-utils gmm-utils mailheader
bbdb-autoloads bbdb-query bbdb-print bbdb-com mailabbrev bbdb timezone
boxquote rect timeclock find-recursive bubble-buffer ibuffer
wisent-python wisent-python-wy semantic-wisent wisent ecb ecb-analyse
ecb-compatibility ecb-winman-support ecb-autogen autoload ecb-tod
ecb-cycle ecb-eshell ecb-help ecb-jde ecb-method-browser
ecb-file-browser ecb-layout ecb-create-layout ecb-compilation
ecb-speedbar ecb-common-browser ecb-semantic-wrapper ecb-navigate
ecb-mode-line ecb-face tree-buffer avoid ecb-upgrade ecb-util thingatpt
silentcomp senator which-func semantic-imenu semantic-sb imenu
semantic-mru-bookmark semanticdb-mode semantic-idle eassist cedet
speedbar-load speedbar-loaddefs sb-info ede-load ede-loaddefs
ede-speedbar ede-files ede bzr-core tla-core tla-autoconf tla-defs
dvc-log vc vc-dispatcher dvc-unified dvc-tips ffap ediff xdarcs-core
xgit-core xhg-core xmtn-minimal eieio-speedbar eieio-custom ede-source
srecode-load srecode srecode-loaddefs semantic-load semantic-ia-sb
semantic-analyze semantic-scope semantic-analyze-fcn semantic-sort
semanticdb-el semanticdb-search semantic-find semanticdb eieio-base
semantic-ctxt semantic-format semantic-util-modes semantic-util semantic
semantic-lex semantic-tag working fame semantic-fw semantic-loaddefs
mode-local find-func eieio-load eieio-loaddefs cedet-load cedet-compat
cedet-loaddefs eieio inversion sb-rmail sb-html sb-texinfo speedbar
sb-image ezimage dframe escreen find-library read-library appt diary-lib
diary-loaddefs esh-groups eshell esh-var esh-io esh-cmd esh-ext esh-proc
esh-arg eldoc esh-mode esh-util esh-module esh-toggle
python-exception-walker pydoc ipython executable xsteve-python
python-mode info-look info ansi-color compile warnings vsim-nav cwarn
cc-mode cc-fonts cc-menus cc-cmds cc-styles cc-align cc-engine cc-vars
cc-defs skeleton reftex reftex-vars font-latex tex tex-site screen-lines
hideshow printing ps-print ps-def lpr msb mouse-copy paren stig-paren
reporter xsteve-functions cal-iso cal-menu calendar cal-loaddefs
bookmark dvc-autoloads dvc-core dvc-lisp dvc-buffers dvc-ui dvc-register
dvc-utils dvc-emacs ewoc dvc-defs dvc-site psvn byte-opt bytecomp
byte-compile derived edmacro kmacro cl cl-19 log-edit pcvs-util add-log
diff-mode pp elp ediff-merg ediff-diff ediff-wind ediff-mult ediff-help
ediff-init ediff-util uniquify autorevert ehelp electric tramp-imap
assoc tramp-gw tramp-fish tramp-smb tramp-cache tramp-ftp tramp-cmds
tramp auth-source gnus-util advice help-fns advice-preload shell
password-cache format-spec tramp-compat trampver recentf tree-widget
wid-edit easymenu generic-x server ls-lisp wdired dired-x dired-aux
dired ido hippie-exp comint regexp-opt ring cua-base easy-mmode hi-lock
tooltip ediff-hook vc-hooks lisp-float-type mwheel x-win x-dnd tool-bar
dnd fontset image fringe lisp-mode register page menu-bar rfn-eshadow
timer select scroll-bar mldrag mouse jit-lock font-lock syntax facemenu
font-core frame cham georgian utf-8-lang misc-lang vietnamese tibetan
thai tai-viet lao korean japanese hebrew greek romanian slovak czech
european ethiopic indian cyrillic chinese case-table epa-hook
jka-cmpr-hook help simple abbrev loaddefs button minibuffer faces
cus-face files text-properties overlay md5 base64 format env code-pages
mule custom widget hashtable-print-readable backquote
make-network-process dynamic-setting font-render-setting gtk x-toolkit x
multi-tty emacs)