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-rw-r--r--guix/scripts/weather.scm22
1 files changed, 12 insertions, 10 deletions
diff --git a/guix/scripts/weather.scm b/guix/scripts/weather.scm
index 06312d65a2..60a697d1ac 100644
--- a/guix/scripts/weather.scm
+++ b/guix/scripts/weather.scm
@@ -54,16 +54,18 @@
(define (all-packages)
"Return the list of public packages we are going to query."
- (fold-packages (lambda (package result)
- (match (package-replacement package)
- ((? package? replacement)
- (cons* replacement package result))
- (#f
- (cons package result))))
- '()
-
- ;; Dismiss deprecated packages but keep hidden packages.
- #:select? (negate package-superseded)))
+ (delete-duplicates
+ (fold-packages (lambda (package result)
+ (match (package-replacement package)
+ ((? package? replacement)
+ (cons* replacement package result))
+ (#f
+ (cons package result))))
+ '()
+
+ ;; Dismiss deprecated packages but keep hidden packages.
+ #:select? (negate package-superseded))
+ eq?))
(define (call-with-progress-reporter reporter proc)
"This is a variant of 'call-with-progress-reporter' that works with monadic