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-rw-r--r--guix/packages.scm5
1 files changed, 4 insertions, 1 deletions
diff --git a/guix/packages.scm b/guix/packages.scm
index 07f6d0ccbc..cf16a4730c 100644
--- a/guix/packages.scm
+++ b/guix/packages.scm
@@ -398,7 +398,10 @@ IMPORTED-MODULES specify modules to use/import for use by SNIPPET."
          (define (apply-patch input)
            (let ((patch* (assoc-ref %build-inputs input)))
              (format (current-error-port) "applying '~a'...~%" patch*)
-             (zero? (system* patch "--batch" ,@flags "--input" patch*))))
+
+             ;; Use '--force' so that patches that do not apply perfectly are
+             ;; rejected.
+             (zero? (system* patch "--force" ,@flags "--input" patch*))))
 
          (define (first-file directory)
            ;; Return the name of the first file in DIRECTORY.