(defun my-w3m-view-url ()
  (browse-url (w3m-anchor)))
(eval-after-load 'w3m
  (define-key w3m-minor-mode-map (kbd "RET") #'my-w3m-view-url))

when byte-compiled I get error on key binding RET usage:

my-w3m-view-url: Invalid function: w3m-anchor

This because w3m-anchor isn't a function but become macro. I try to add:

  (require 'w3m-util nil :no-error))

before lines that uses w3m-anchor. But this doesn't help me.

I load .emacs-my.elc file made by:

emacs -Q --batch --eval='(byte-compile-file "~/.emacs.d/.emacs-my")'

UPDATE As suggest @Iqbal Ansari I further debug issue. For some reason byte compiled file have function call instead of expanded macro:

$ strings .emacs-my.elc | grep w3m-anchor
840:(defalias 'my-w3m-view-url #[nil "\300\301 !\207" [browse-url w3m-anchor] 2 nil nil])

Full .emacs-my file source code is available at https://sourceforge.net/u/gavenkoa/dot-emacs/ci/default/tree/.emacs-my Corresponding installation steps are available at https://sourceforge.net/u/gavenkoa/dot-emacs/ci/default/tree/Makefile

  • Did you try recompiling after adding missing require? Oct 13, 2015 at 9:23
  • @IqbalAnsari Of course I recompile again )) Added further info.
    – gavenkoa
    Oct 13, 2015 at 9:32

1 Answer 1


Hm..., my error come from many parts after adaptation of install architecture.

I introduce byte-compilation for speed reason, that effect macro expansion.

Note that I used -Q option (to make compilation faster), which prevents built normal load-path value.

My (require 'w3m-util nil :no-error) style allow byte-compilation ever some packages doesn't preset at compile time. Changing code to (require 'w3m-util) has shown me where I am wrong.

So as solution I strip -Q from Emacs invocation during byte-compilation.

  • 1
    An alternative would be using -L with the path to the library needed.
    – wasamasa
    Oct 13, 2015 at 11:20
  • If you feel your answer is correct, and if you are not looking for other answers, consider accepting your answer. that removes it from the list of unanswered questions.
    – Drew
    Oct 13, 2015 at 15:33
  • It's been more than 2 days by now...
    – npostavs
    Nov 12, 2015 at 15:32

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