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From: "Stefan Monnier" <monnier+gnu/emacs@rum.cs.yale.edu>
Newsgroups: gmane.emacs.devel
Subject: Re: eval-after-load as a macro (and eval-next-after-load)
Date: Mon, 07 Apr 2003 13:56:07 -0400
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> Speaking of breaking execution and incompatibilities, the use of the new
> `run-mode-hooks' in `define-derived-mode' has caused a small
> backward-incompatibility: .elc files using `define-derived-mode' and
> compiled with 21.3.50 cannot be loaded on 21.[123] releases. Source
> modules can, of course.

That's forward-incompatibility.


	Stefan