[emacs-w3m:13699] Re: Problems installing emacs-w3m

In [emacs-w3m:13698]
> Trying to install emacs-w3m via MELPA (M-x package-install RET w3m
> RET) gives me:
[...]
> Compiling file /home/slaurel/.emacs.d/elpa/w3m-20201104.54/mime-w3m.el at Wed Nov 25 16:16:13 2020
> mime-w3m.el:37:1:Error: Cannot open load file: No such file or directory, mime-view

Probably the absence of mime-view (and the failure of compiling
mime-w3m.el) is harmless.  mime-w3m.el is the module used for a
certain mail program that uses the SEMI package incl mime-view.el.

> Compiling file /home/slaurel/.emacs.d/elpa/w3m-20201104.54/w3m-antenna.el at Wed Nov 25 16:16:13 2020
> w3m-antenna.el:50:1:Error: Symbol’s value as variable is void: tabstop

I tried detaching SEMI and reinstalling w3m-20201104.54 from
melpa but saw no such an error.  Performing ``grep tabstop *.el''
there said nothing either.  Hmm..

Could you find out where that `tabstop' comes from?
Does anyone in this mailing list know what causes such a mystery?

> w3m-bookmark.el:40:1:Error: Symbol’s value as variable is void: tabstop
> w3m-cookie.el:42:1:Error: Symbol’s value as variable is void: tabstop
> w3m-dtree.el:35:1:Error: Symbol’s value as variable is void: tabstop
> w3m-filter.el:37:1:Error: Symbol’s value as variable is void: tabstop
> w3m-form.el:43:1:Error: Symbol’s value as variable is void: tabstop
> w3m-lnum.el:50:1:Error: Symbol’s value as variable is void: tabstop
> w3m-mail.el:41:1:Error: Symbol’s value as variable is void: tabstop
> w3m-namazu.el:50:1:Error: Symbol’s value as variable is void: tabstop
> w3m-perldoc.el:35:1:Error: Symbol’s value as variable is void: tabstop
> w3m-save.el:31:1:Error: Symbol’s value as variable is void: tabstop
> w3m-search.el:37:1:Error: Symbol’s value as variable is void: tabstop
> w3m-tabmenu.el:38:1:Error: Symbol’s value as variable is void: tabstop
> w3m-weather.el:48:1:Error: Symbol’s value as variable is void: tabstop

> Any assistance or suggestions would be appreciated.