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Revert "packages: Optimize 'package-transitive-supported-systems'." 

This reverts commit 24420f5ffa.

This broke 'package-transitive-supported-systems', which would return
the union of supported systems instead of the intersection.
This commit is contained in:
Ludovic Courtès 2018-07-03 13:49:28 +02:00
parent f3f1d0a557
commit 86eee976f5
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GPG Key ID: 090B11993D9AEBB5
1 changed files with 9 additions and 10 deletions
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19
guix/packages.scm
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@ -766,16 +766,15 @@ in INPUTS and their transitive propagated inputs."
(mlambdaq (package)
"Return the intersection of the systems supported by PACKAGE and those
supported by its dependencies."
(set->list
(fold (lambda (input systems)
(match input
((label (? package? p) . _)
(fold set-insert systems
(package-transitive-supported-systems p)))
(_
systems)))
(list->set (package-supported-systems package))
(bag-direct-inputs (package->bag package))))))
(fold (lambda (input systems)
(match input
((label (? package? p) . _)
(lset-intersection
string=? systems (package-transitive-supported-systems p)))
(_
systems)))
(package-supported-systems package)
(bag-direct-inputs (package->bag package)))))
(define* (supported-package? package #:optional (system (%current-system)))
"Return true if PACKAGE is supported on SYSTEM--i.e., if PACKAGE and all its