From d26ad5e45bc68ac0c373a576147310a7dacc9017 Mon Sep 17 00:00:00 2001
From: Ludovic Courtès <ludo@gnu.org>
Date: Fri, 29 Jun 2012 00:27:32 +0200
Subject: derivation: Remove duplicate inputs.

* guix/derivations.scm (derivation): Remove duplicates from INPUT.
---
 guix/derivations.scm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'guix/derivations.scm')

diff --git a/guix/derivations.scm b/guix/derivations.scm
index b4f27bf74d..6011a3d97e 100644
--- a/guix/derivations.scm
+++ b/guix/derivations.scm
@@ -343,7 +343,7 @@ (define (env-vars-with-empty-outputs)
                                                       (hash-algo sha256) #t #t
                                                       input)))
                               (make-derivation-input path '()))))
-                          inputs))
+                          (delete-duplicates inputs)))
          (env-vars   (env-vars-with-empty-outputs))
          (drv-masked (make-derivation outputs
                                       (filter (compose derivation-path?
-- 
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