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-rw-r--r--gnu/packages/embedded.scm11
1 files changed, 10 insertions, 1 deletions
diff --git a/gnu/packages/embedded.scm b/gnu/packages/embedded.scm
index 2befdf31b3..f8684f46a2 100644
--- a/gnu/packages/embedded.scm
+++ b/gnu/packages/embedded.scm
@@ -237,7 +237,16 @@ library variant NEWLIB."
(version (package-version xgcc))
(source #f)
(build-system trivial-build-system)
- (arguments '(#:builder (mkdir %output)))
+ (arguments
+ '(#:modules ((guix build union))
+ #:builder
+ (begin
+ (use-modules (ice-9 match)
+ (guix build union))
+ (match %build-inputs
+ (((names . directories) ...)
+ (union-build (assoc-ref %outputs "out")
+ directories))))))
(propagated-inputs
`(("binutils" ,(cross-binutils "arm-none-eabi"))
("gcc" ,xgcc)