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-rw-r--r--var/spack/repos/builtin/packages/boost/package.py4
1 files changed, 3 insertions, 1 deletions
diff --git a/var/spack/repos/builtin/packages/boost/package.py b/var/spack/repos/builtin/packages/boost/package.py
index db72c06212..cc774b927b 100644
--- a/var/spack/repos/builtin/packages/boost/package.py
+++ b/var/spack/repos/builtin/packages/boost/package.py
@@ -329,7 +329,9 @@ class Boost(Package):
# Deal with C++ standard.
if spec.satisfies('@1.66:'):
- options.append('cxxstd={0}'.format(spec.variants['cxxstd'].value))
+ if spec.variants['cxxstd'].value != 'default':
+ options.append('cxxstd={0}'.format(
+ spec.variants['cxxstd'].value))
else: # Add to cxxflags for older Boost.
flag = self.cxxstd_to_flag(spec.variants['cxxstd'].value)
if flag: