GNU bug report logs - #8332
24.0.9999; lexbind-new branch errors on M-x describe-variable lexical-binding

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From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Tassilo Horn <tassilo <at> member.fsf.org>
Cc: 8332 <at> debbugs.gnu.org, rubikitch <rubikitch <at> ruby-lang.org>, Thierry Volpiatto <thierry.volpiatto <at> gmail.com>
Subject: bug#8332: Acknowledgement (24.0.9999; lexbind-new branch errors on M-x describe-variable lexical-binding)
Date: Thu, 24 Mar 2011 11:01:33 -0400

> After some bisectioning, I found out the culprit is anything.
> Commenting out
>   (require 'anything)
> in my .emacs, so I'll Cc-ed Thierry and Rubykitch.

Please try to only set lexical-binding via file-local variables.
This should be 100% backward compatible (i.e. only affect the files
where you've set that variable), so any new error like the above
is not normal.  There are a few rare backward incompatibilities, but
they are fairly rare (e.g. the `byte-compile' property works a bit
differently, and there are new representations for functions, so if the
code checks (eq (car foo) 'lambda) instead of using `functionp' it might
bump into problems).


        Stefan

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