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-rw-r--r--guix/ui.scm11
1 files changed, 11 insertions, 0 deletions
diff --git a/guix/ui.scm b/guix/ui.scm
index 4857a88827..a47dafecd4 100644
--- a/guix/ui.scm
+++ b/guix/ui.scm
@@ -770,6 +770,17 @@ directories:~{ ~a~}~%")
(gettext (condition-message c) %gettext-domain))
(display-hint (condition-fix-hint c))
(exit 1))
+
+ ;; On Guile 3.0.0, exceptions such as 'unbound-variable' come are
+ ;; compound and include a '&message'. However, that message only
+ ;; contains the format string. Thus, special-case it here to
+ ;; avoid displaying a bare format string.
+ ((cond-expand
+ (guile-3
+ ((exception-predicate &exception-with-kind-and-args) c))
+ (else #f))
+ (raise c))
+
((message-condition? c)
;; Normally '&message' error conditions have an i18n'd message.
(leave (G_ "~a~%")