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Re: problem with common lisp


From: Guillaume Le Vaillant
Subject: Re: problem with common lisp
Date: Thu, 22 Oct 2020 14:28:29 +0200
User-agent: mu4e 1.4.13; emacs 27.1

Adam Kandur <rndd@tuta.io> skribis:

> Hi, i built 2.0.8 and error disappeared. could you tell where in manual i can 
> read about donwgrading packages

If SBCL is in your main profile, you could downgrade it with:

--8<---------------cut here---------------start------------->8---
guix package --roll-back
guix package --upgrade --do-not-upgrade=sbcl
--8<---------------cut here---------------end--------------->8---

Or you could create an environment with "guix time-machine":

--8<---------------cut here---------------start------------->8---
guix time-machine --commit 21e79225352a5e78aa329b6cd213eb553862c363 -- 
environment --ad-hoc sbcl
--8<---------------cut here---------------end--------------->8---

Here 21e79225352a5e78aa329b6cd213eb553862c363 is the commit just before
the patch upgrading SBCL to 2.0.9.

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