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Re: Cleaning up further compat code

From: Stefan Monnier
Subject: Re: Cleaning up further compat code
Date: Mon, 04 Apr 2016 08:35:58 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (gnu/linux)

> From the non-response here I'm assuming the answer is "no".  Would it be
> an idea to create such a file?  That way it would be easier to know

No, please don't.  If you want to keep that data, keep it in the
affected files, not in a separate file.

How 'bout a pseudo-header like

   Should-work-in: Emacs-trunk

This way it can also be used for other cases such as

   Should-work-in: XEmacs


   Should-work-in: Emacs≥23

For multifile packages, we could put that pseudo-header only in the
main file.  And arguably, it would be good to associate a date with this
info, like

   Should-work-in: Emacs≥20  (Nov 2006)

so as to get some vague idea of whether maybe it's time to update the


PS: I recently bumped into:

 ((and (not (featurep 'xemacs))
       (string-equal "19" (substring emacs-version 0 2))
       (or window-system
           (fboundp 'tmm-menubar)))     ; 19.30 - Will autoload if necessary

Does AUCTeX really still care about Emacs-19.30?

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