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From: | Bozhidar Batsov |
Subject: | Re: subr-x on older Emacsen |
Date: | Fri, 18 Jul 2014 15:21:59 +0300 |
On July 15, 2014 at 4:09:27 PM, Sebastian Wiesner (address@hidden) wrote:
While this could be done, there a few caveats: * subr-x should be considered a built-in package * newer version might have less functions than older one as ideally parts of subr-x will be promoted to subr * the compatibility package should check for the presence of each function prior to defining it (follows from the previous bullet point) Of course, this is part of a much bigger issue as things get constantly added to various Emacs libraries and using them and staying backwards compatible is always problematic. I don’t think we need a subr-x backwards compatibility package, we need an Emacs backwards compatibility package. Perhaps it would include stuff from a few past releases and define the things conditionally if not present?
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