Emacs: dbus-related error when trying to switch to latex mode -


since began using dbus emacs days ago (meaning recompiled dbus-support), when open latex-file or try switch manually latex-mode, get

file mode specification error: (invalid-function dbus-ignore-errors)

and emacs stops there remaining in fundamental mode.

i use dbus zeitgeist-support , works fine , recompilation, auctex worked equally fine. checked if dbus-functions available result: show in (including "dbus-ignore-errors") don't seem available execute-extended-commad (m-x) meaning don't show in completion , cannot executed. on other hand available lisp-eval.

i don't know if that's normal behavior these functions, anyway there seems sort of problem availability of functions auctex?

the situation not change disabling zeitgeist-plugin.

any suggestions?

best regards

matthias

the error invalid-function means piece of emacs lisp code compiled before macro defined, , trying call macro function. solve this, find module in question , recompile after making sure macro (dbus-ignore-errors in case) defined.

in case of auctex, happens because tex.el contains following:

;; require dbus @ compile time prevent errors due `dbus-ignore-errors' ;; not being defined. (eval-when-compile (and (featurep 'dbusbind)             (require 'dbus nil :no-error)))

that is, tries load dbus library, ignores failures. if emacs under auctex being compiled doesn't support dbus, dbus-ignore-errors compiled function call when compiling tex.el. that's no problem, because dbus-ignore-errors call protected featurep test.

if byte-compiled file loaded emacs instance does support dbus, reach line in question, , try call macro function, fails invalid-function. that's why file needs recompiled before being loaded dbus-enabled emacs.

one way solve wrap dbus-ignore-errors line eval, changing line:

     (dbus-ignore-errors (dbus-get-unique-name :session))

to this:

     (eval '(dbus-ignore-errors (dbus-get-unique-name :session)))

that postpone decision on how evaluate expression until runtime, when emacs know dbus-ignore-errors macro.


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