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-rw-r--r--guix/build-system/scons.scm4
1 files changed, 3 insertions, 1 deletions
diff --git a/guix/build-system/scons.scm b/guix/build-system/scons.scm
index e38213e8e0..7a02fa8a0f 100644
--- a/guix/build-system/scons.scm
+++ b/guix/build-system/scons.scm
@@ -100,7 +100,9 @@ provides a 'SConstruct' file as its build system."
#$(with-build-variables inputs outputs
#~(scons-build #:name #$name
#:source #+source
- #:scons-flags #$(sexp->gexp scons-flags)
+ #:scons-flags #$(if (pair? scons-flags)
+ (sexp->gexp scons-flags)
+ scons-flags)
#:system #$system
#:build-targets #$build-targets
#:test-target #$test-target