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Re: Using the Guile json module in a gexp
From: |
Christopher Baines |
Subject: |
Re: Using the Guile json module in a gexp |
Date: |
Tue, 12 Sep 2017 19:49:33 +0100 |
On Mon, 11 Sep 2017 14:12:34 +0200
address@hidden (Ludovic Courtès) wrote:
> Hello!
>
> Christopher Baines <address@hidden> skribis:
>
> > So I'm having some trouble using the Guile json module in a gexp.
> > I've added (with-imported-modules '((json)) ...), and the
> > module-import-compiled builder crashes.
> >
> > Backtrace:
> > 4 (primitive-load
> > "/gnu/store/35zv0m9wwd2nz3agyywv09d3k5v?") In srfi/srfi-1.scm:
> > 640:9 3 (for-each #<procedure c10700 at
> > ice-9/eval.scm:333:13 ?> ?) In ice-9/eval.scm:
> > 245:16 2 (_ #(#(#<directory (guix build utils) 83f6e0> "/gn?")
> > #)) In ice-9/boot-9.scm:
> > 1519:24 1 (_ "./json.scm")
> > In unknown file:
> > 0 (stat "./json.scm" #<undefined>)
> >
> > ERROR: In procedure stat:
> > ERROR: In procedure stat: No such file or directory: "./json.scm"
>
> This would have the effect of importing the (json) module of the host
> environment into the build environment, which is not desirable for a
> couple of reasons:
>
> 1. It would require having Guile-JSON installed in the host
> environment, and the right version of it.
>
> 2. It would hinder reproducibility since different users may have
> different Guile-JSON variants installed on the host side.
>
> To overcome this, you have to do like (guix scripts package) does:
>
> #~(begin
> (add-to-load-path #$(file-append guile-json
> "/share/guile/site/"
> (effective-version)))
> …)
>
> It would be nice to simplify this somehow, though.
Awesome, thanks Ludo.
Your explaination makes lots of sense, and the approach you suggested
worked perfectly :)
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