Guile-GI: builder:new-from-file: Segmentation fault

[Luis Felipe]

Hi,

I'm trying to learn some Guile-GI, but I just hit a segfault. I was trying to 
create a GTK Builder from a file:

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$ guile
GNU Guile 3.0.5
Copyright (C) 1995-2021 Free Software Foundation, Inc.

Guile comes with ABSOLUTELY NO WARRANTY; for details type `,show w'.
This program is free software, and you are welcome to redistribute it
under certain conditions; type `,show c' for details.

Enter `,help' for help.
scheme@(guile-user)> (use-modules (gi) (gi repository))
scheme@(guile-user)> (require "Gio" "2.0")
scheme@(guile-user)> (require "Gtk" "3.0")
scheme@(guile-user)> (load-by-name "Gtk" "Builder")
$1 = (translation-domain builder:translation-domain value-from-string-type! 
builder:value-from-string-type! value-from-string! builder:value-from-string! 
set-translation-domain builder:set-translation-domain set-application 
builder:set-application get-type-from-name builder:get-type-from-name 
get-translation-domain builder:get-translation-domain get-objects 
builder:get-objects get-object builder:get-object get-application 
builder:get-application extend-with-template builder:extend-with-template 
expose-object builder:expose-object connect-signals-full 
builder:connect-signals-full connect-signals builder:connect-signals 
add-objects-from-string builder:add-objects-from-string 
add-objects-from-resource builder:add-objects-from-resource 
add-objects-from-file builder:add-objects-from-file add-from-string 
builder:add-from-string add-from-resource builder:add-from-resource 
add-from-file builder:add-from-file add-callback-symbol 
builder:add-callback-symbol builder:new-from-string builder:new-from-resource 
builder:new-from-file builder:new <GtkBuilder>)
scheme@(guile-user)> (builder:new-from-file "app.ui")

(process:13659): Gtk-CRITICAL **: 15:12:12.366: 
_gtk_style_provider_private_get_settings: assertion 
'GTK_IS_STYLE_PROVIDER_PRIVATE (provider)' failed

(process:13659): Gtk-CRITICAL **: 15:12:12.366: 
_gtk_style_provider_private_get_settings: assertion 
'GTK_IS_STYLE_PROVIDER_PRIVATE (provider)' failed

(process:13659): Gtk-CRITICAL **: 15:12:12.366: 
_gtk_style_provider_private_get_settings: assertion 
'GTK_IS_STYLE_PROVIDER_PRIVATE (provider)' failed
Violación de segmento
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I don't have a GitHub account (https://github.com/spk121/guile-gi), so I'm 
reporting here instead.

This is the UI file I used: https://luis-felipe.gitlab.io/downloads/temp/app.ui.

I'm on Guix System, using guile-gi 0.3.1.


---
Luis Felipe López Acevedo
https://luis-felipe.gitlab.io/