Guix, If you try to use a character literal in a source 'snippet', Guix will complain about an "unsupported input". I.e. adding the following to the 'hello' package definition:
(snippet '(begin #\!))
Results in:
guix build: error: /home/marius/guix/gnu/packages/base.scm:73:2: package
`hello@2.10' has an invalid input: #\!
This is a fairly recent regression. I tracked it down to the following commit:
commit 24ab804ce11fe12ff49cd144a3d9c4bfcf55b41c
Author: Ludovic Courtès <l...@gnu.org>
Date: Mon Sep 23 22:17:39 2019 +0200
gexp: Catch and report non-self-quoting gexp inputs.
Previously we would, for example, generate build scripts in the store;
when trying to run them, we'd get a 'read' error due to the presence
of #<foo> syntax in there.
* guix/gexp.scm (gexp->sexp)[self-quoting?]: New procedure.
[reference->sexp]: Check whether the argument in a <gexp-input> box is
self-quoting. Raise a '&gexp-input-error' condition if it's not.
* tests/gexp.scm ("lower-gexp, non-self-quoting input"): New test.
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