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-rw-r--r--guix/channels.scm9
1 files changed, 8 insertions, 1 deletions
diff --git a/guix/channels.scm b/guix/channels.scm
index 5f47834c10..ce1a60436f 100644
--- a/guix/channels.scm
+++ b/guix/channels.scm
@@ -907,7 +907,14 @@ be used as a profile hook."
(format (current-error-port)
"Generating package cache for '~a'...~%"
#$profile)
- (generate-package-cache #$output))
+ ;; This script runs through (primitive-load), which by default
+ ;; doesn't print backtraces when it encounters an exception,
+ ;; so manually do it. Use with-throw-handler because it is
+ ;; supported by all Guile versions.
+ (with-throw-handler #t
+ (lambda () (generate-package-cache #$output))
+ (lambda (key . args)
+ (backtrace))))
(mkdir #$output))))
(gexp->derivation-in-inferior "guix-package-cache" build