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derivations: Use a set for 'substitution-oracle'.

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* guix/derivations.scm (substitution-oracle): Use sets instead of lists.
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Ludovic Courtès
2015-01-11 23:20:57 +01:00
parent ed3592a980
commit c06d140c03
1 changed files with 2 additions and 2 deletions
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guix/derivations.scm
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@@ -217,8 +217,8 @@ substituter many times."
(append self deps result)))
'()
drv)))
(subst (substitutable-paths store paths)))
(cut member <> subst)))
(subst (list->set (substitutable-paths store paths))))
(cut set-contains? subst <>)))
(define* (derivation-prerequisites-to-build store drv
#:key