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-rw-r--r--var/spack/repos/builtin/packages/dealii/package.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/var/spack/repos/builtin/packages/dealii/package.py b/var/spack/repos/builtin/packages/dealii/package.py
index dae61d009c..420a71d5b5 100644
--- a/var/spack/repos/builtin/packages/dealii/package.py
+++ b/var/spack/repos/builtin/packages/dealii/package.py
@@ -276,7 +276,7 @@ class Dealii(CMakePackage, CudaPackage):
if not spec.satisfies('^cuda@9:'):
options.append('-DDEAL_II_WITH_CXX14=OFF')
cuda_arch = spec.variants['cuda_arch'].value
- if cuda_arch is not None and cuda_arch[0] is not '':
+ if cuda_arch != 'none':
if len(cuda_arch) > 1:
raise InstallError(
'deal.II only supports compilation for a single GPU!'