From 8ae33d6844dd8886ca2032fcd4eb80e6cefe6128 Mon Sep 17 00:00:00 2001
From: Ricardo Wurmus <rekado@elephly.net>
Date: Sun, 5 Dec 2021 12:55:19 +0100
Subject: [PATCH] gnu: kraken2: Remove reference to %outputs.

* gnu/packages/bioinformatics.scm (kraken2)[arguments]: Remove reference to
%outputs by using a gexp.
---
 gnu/packages/bioinformatics.scm | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/gnu/packages/bioinformatics.scm b/gnu/packages/bioinformatics.scm
index 67baaf3035..2f47cd6cb8 100644
--- a/gnu/packages/bioinformatics.scm
+++ b/gnu/packages/bioinformatics.scm
@@ -14695,9 +14695,9 @@ (define-public kraken2
     (build-system gnu-build-system)
     (arguments
      `(#:tests? #false                  ; there are none
-       #:make-flags (list "-C" "src"
-                          (string-append "KRAKEN2_DIR="
-                                         (assoc-ref %outputs "out") "/bin"))
+       #:make-flags
+       ,#~(list "-C" "src"
+                (string-append "KRAKEN2_DIR=" #$output "/bin"))
        #:phases
        (modify-phases %standard-phases
          (delete 'configure)