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bug#18786: (error "Attempt to modify read-only object" (("\\.txz\\'" . t


From: Andreas Schwab
Subject: bug#18786: (error "Attempt to modify read-only object" (("\\.txz\\'" . tar-mode))) on adding mode
Date: Tue, 21 Oct 2014 17:20:03 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux)

Boyan Penkov <boyan.penkov@gmail.com> writes:

> I have a bunch of stuff like: 
>
>     (nconc auto-mode-alist '(("\\.ctl" . scheme-mode))))
>
> in my .emacs.  

Don't use destructive functions unless you know what you are doing.

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE  1748 E4D4 88E3 0EEA B9D7
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