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-rw-r--r--var/spack/repos/builtin/packages/arbor/package.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/var/spack/repos/builtin/packages/arbor/package.py b/var/spack/repos/builtin/packages/arbor/package.py
index d1c372284a..9adacf477f 100644
--- a/var/spack/repos/builtin/packages/arbor/package.py
+++ b/var/spack/repos/builtin/packages/arbor/package.py
@@ -70,4 +70,7 @@ class Arbor(CMakePackage, CudaPackage):
if '+cuda' in self.spec:
args.append('-DARB_GPU=cuda')
+ # rely on spack's compiler wrapper to set architecture
+ args.append('-DARB_ARCH=')
+
return args