Package tm unconditionally uses message-included-forward-headers

I installed tm 1.22 Emacs MIME support. today. (load-library "mime-setup") causes following *Backtrace*. I use (gnus-version) "Gnus v5.8.7" which doesn't have this variable. I can send a patch testing for (boundp 'message-included-forward-headers) but maybe someone here knows more about this. Please advise, Adrian Signaling: (void-variable message-included-forward-headers) byte-code("..." [require tm-edit mime-make-tag "message" "rfc822" "\n" message-forward-start-separator "" message-forward-end-separator string-match message-included-forward-headers "Mime-Version:" "\\|^Mime-Version:" "Content-Type:" "\\|^Content-Type:" "Content-Transfer-Encoding:" "\\|^Content-Transfer-Encoding:"] 3) load-internal("c:\\XEmacs\\xemacs-packages\\lisp\\tm\\message-mime.elc" nil t t binary) efs-real-load("c:\\XEmacs\\xemacs-packages\\lisp\\tm\\message-mime.elc" nil t t) load("c:\\XEmacs\\xemacs-packages\\lisp\\tm\\message-mime.elc" nil t nil) efs-real-require(message-mime "c:\\XEmacs\\xemacs-packages\\lisp\\tm\\message-mime.elc") require(message-mime) #<compiled-function nil "...(4)" [require message-mime] 2>() call-after-loaded(message #<compiled-function nil "...(4)" [require message-mime] 2>) byte-code("..." [boundp epoch::version add-hook message-setup-hook mime/editor-mode message-maybe-setup-default-charset message-send-hook mime-editor/maybe-translate message-header-hook mime/encode-message-header call-after-loaded message #<compiled-function nil "...(4)" [require message-mime] 2> provide mime-setup run-hooks mime-setup-load-hook] 3) load-internal("c:\\XEmacs\\xemacs-packages\\lisp\\tm\\mime-setup.elc" nil t t binary) efs-real-load("c:\\XEmacs\\xemacs-packages\\lisp\\tm\\mime-setup.elc" nil t t) load("c:\\XEmacs\\xemacs-packages\\lisp\\tm\\mime-setup.elc" nil t t) apply(load ("c:\\XEmacs\\xemacs-packages\\lisp\\tm\\mime-setup.elc" nil t t)) dired-handler-fn(load "c:\\XEmacs\\xemacs-packages\\lisp\\tm\\mime-setup.elc" nil t t) efs-real-load("c:\\XEmacs\\xemacs-packages\\lisp\\tm\\mime-setup.elc" nil t t) load("mime-setup") #<compiled-function (library) "...(4)" [load library] 2 288519 (list (read-library "Load Library: " load-path nil nil nil ...))>("mime-setup") call-interactively(load-library) command-execute(load-library t) execute-extended-command(nil) call-interactively(execute-extended-command) -- Adrian Aichner <adrian(a)xemacs.org&gt;