bug#54003: local-file after Guile update

[Ludovic Courtès]

Ludovic Courtès <ludo@gnu.org> skribis:

>>From 7fd25c6f15f74fb6e45fc3f0db21a110267f262c Mon Sep 17 00:00:00 2001
> From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= <ludo@gnu.org>
> Date: Wed, 16 Feb 2022 11:27:43 +0100
> Subject: [PATCH] gexp: Preserve source location for #~ and #$ read extensions.
>
> Read hash extensions preserve source location info as source properties
> on their result.  However, in Guile 3.0.8, that location would be
> dismissed, leading 'local-file' to fail to resolve file names relative
> to the source directory.
>
> Fixes <https://issues.guix.gnu.org/54003>.
> Reported by Aleksandr Vityazev <avityazev@posteo.org>.
>
> * guix/gexp.scm <eval-when> [read-syntax-redefined?, read-procedure]
> [read-syntax*]: New variables.
> [read-ungexp]: Adjust to expect either sexps or syntax objects.
> [read-gexp]: Call 'read-procedure'.
> * tests/gexp.scm ("local-file, relative file name, within gexp")
> ("local-file, relative file name, within gexp, compiled"): New tests.

Pushed as ca155a20aea25003b03ef5e0420c77e416d5f425 after verifying that
it works with 3.0.7.

I’m leaving the bug open so we can see what to do on the Guile side.

Ludo’.