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Re: Using Guile 2.2 modules with Guile 3

From: Maxime Devos
Subject: Re: Using Guile 2.2 modules with Guile 3
Date: Sat, 6 Aug 2022 17:29:31 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0

On 06-08-2022 17:11, Olivier Dion via General Guile related discussions wrote:

Say I want to use guile-dbi wich use Guile 2.2.  Is there any danger for
me to use it with Guile 3.0?  I see that Guile will recompile the module
because the already compiled one does not match, I guess.  Other than
that, any side effects?


Going by the package definition, guile-dbd-postgresql seems to make a Guile extension (C). There have been incompatible changes (both on the Guile code level, and presumably on the C level). As such, sounds risky to me.

Also, for whatever reason, guile-dbi propagates an old guile, so you'll get a propagation conflict without guarantees on which Guile version ‘wins’.


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