From 4b1786aa2c2e21e5b0c439cf6ad91f157376af5e Mon Sep 17 00:00:00 2001
From: Ludovic Courtès <ludo@gnu.org>
Date: Sun, 1 Jul 2012 15:37:58 +0200
Subject: Fix `derivation-hash' for outputs not sorted alphabetically.

* guix/derivations.scm (derivation-hash): Reorder OUTPUTS.
* tests/derivations.scm ("multiple-output derivation, non-alphabetic
  order"): New test.
---
 guix/derivations.scm | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'guix/derivations.scm')

diff --git a/guix/derivations.scm b/guix/derivations.scm
index a2bff44a5f..f85666bcb9 100644
--- a/guix/derivations.scm
+++ b/guix/derivations.scm
@@ -293,6 +293,9 @@ in SIZE bytes."
                                (string<? (derivation-input-path i1)
                                          (derivation-input-path i2)))))
               (sources (sort sources string<?))
+              (outputs (sort outputs
+                             (lambda (o1 o2)
+                               (string<? (car o1) (car o2)))))
               (drv     (make-derivation outputs inputs sources
                                         system builder args env-vars)))
          (sha256
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