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Re: Most of Elisp lacks lexical-binding: t

From: Phillip Lord
Subject: Re: Most of Elisp lacks lexical-binding: t
Date: Mon, 04 Feb 2019 12:07:50 +0000
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1.91 (gnu/linux)

Stefan Monnier <address@hidden> writes:

>> My feeling is that most files could just be changed without problems,
>> but there will be enough exceptions that it needs to be done carefully.
> FWIW, my local Emacs build is hacked so that it always compiles with
> lexical-binding enabled.  In practice, it seems that most packages work
> just fine with it, but there are indeed very definite exceptions, and
> even for those packages that appear to work, the change may introduce
> subtle regressions.
> So, yes, it has to be done "by hand" and takes time.  Help is
> most welcome.  The best is to do it with the packages that you use, so
> you can more easily test the result.

The question is, though, at what point does it become the default?

One answer would be, support a "dynamic-binding" cookie line for
Emacs-27 (which does nothing by default), incorporate your
lexical-binding hack as an option. Then, go to lexical by default for


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