diff options
Diffstat (limited to 'guix/packages.scm')
| -rw-r--r-- | guix/packages.scm | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/guix/packages.scm b/guix/packages.scm index b397a24678..070eb4e9d5 100644 --- a/guix/packages.scm +++ b/guix/packages.scm @@ -573,22 +573,26 @@ SYSTEM." ;; Use `hashq-set!' instead of `hash-set!' because `hash' returns the ;; same value for all structs (as of Guile 2.0.6), and because pointer ;; equality is sufficient in practice. - (hashq-set! %derivation-cache package `((,system ,@vals))) + (hashq-set! %derivation-cache package + `((,system ,@vals) + ,@(or (hashq-ref %derivation-cache package) + '()))) (apply values vals))) (define-syntax-rule (cached package system body ...) "Memoize the result of BODY for the arguments PACKAGE and SYSTEM. Return the cached result when available." - (let ((thunk (lambda () body ...))) + (let ((thunk (lambda () body ...)) + (key system)) (match (hashq-ref %derivation-cache package) ((alist (... ...)) - (match (assoc-ref alist system) + (match (assoc-ref alist key) ((vals (... ...)) (apply values vals)) (#f - (cache package system thunk)))) + (cache package key thunk)))) (#f - (cache package system thunk))))) + (cache package key thunk))))) (define* (expand-input store package input system #:optional cross-system) "Expand INPUT, an input tuple, such that it contains only references to |