bug#74484: reader syntax trouble across socket

Hi Christopher,

Christopher Howard <[email protected]> scribans:

> scheme@(guile-user)> ,m (emacs-guix)
> scheme@(emacs-guix)> (guix-command "pull")
> Updating channel 'guix' from Git repository at 'https://git.savannah.gnu.org/git/guix.git'...
> Building from this channel:
>   guix      https://git.savannah.gnu.org/git/guix.git	8a7bd21
> ice-9/boot-9.scm:1685:16: In procedure raise-exception:
> /gnu/store/hhnw8gr26smc267yy2hzk57p4b0g6iyb-guix-8a7bd21/build-aux/build-self.scm:84:18: Unknown # object: "#~"

The read syntax for #~ (gexp) is installed by loading the (guix gexp)
module or simply the (guix) module, which loads (guix gexp).

It seems that somehow Emacs-Guix does not load (guix gexp) upfront.
It’s fishy though because (guix scripts pull) definitely loads (guix
gexp), directly and indirectly.

Ludo’.