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-rw-r--r--guix/packages.scm19
1 files changed, 15 insertions, 4 deletions
diff --git a/guix/packages.scm b/guix/packages.scm
index bd72b284b1..6f276160f2 100644
--- a/guix/packages.scm
+++ b/guix/packages.scm
@@ -429,15 +429,26 @@ from forcing GEXP-PROMISE."
;; <https://lists.gnu.org/archive/html/guix-devel/2017-03/msg00790.html>.
(fold delete %supported-systems '("mips64el-linux" "powerpc-linux" "riscv64-linux")))
-(define-inlinable (sanitize-inputs inputs)
- "Sanitize INPUTS by turning it into a list of name/package tuples if it's
-not already the case."
- (cond ((null? inputs) inputs)
+(define (maybe-add-input-labels inputs)
+ "Add labels to INPUTS unless it already has them."
+ (cond ((null? inputs)
+ inputs)
((and (pair? (car inputs))
(string? (caar inputs)))
inputs)
(else (map add-input-label inputs))))
+(define-syntax sanitize-inputs
+ ;; This is written as a macro rather than as a 'define-inlinable' procedure
+ ;; because as of Guile 3.0.9, peval can handle (null? '()) but not
+ ;; (null? (list x y z)); that residual 'null?' test contributes to code
+ ;; bloat.
+ (syntax-rules (quote)
+ "Sanitize INPUTS by turning it into a list of name/package tuples if it's
+not already the case."
+ ((_ '()) '())
+ ((_ inputs) (maybe-add-input-labels inputs))))
+
(define-syntax current-location-vector
(lambda (s)
"Like 'current-source-location' but expand to a literal vector with