diff options
| -rw-r--r-- | guix/packages.scm | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/guix/packages.scm b/guix/packages.scm index c762fa7c39..cd7d3b895c 100644 --- a/guix/packages.scm +++ b/guix/packages.scm @@ -766,15 +766,16 @@ in INPUTS and their transitive propagated inputs." (mlambdaq (package) "Return the intersection of the systems supported by PACKAGE and those supported by its dependencies." - (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))))) + (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)))))) (define* (supported-package? package #:optional (system (%current-system))) "Return true if PACKAGE is supported on SYSTEM--i.e., if PACKAGE and all its |