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-rw-r--r--lib/spack/spack/concretize.py2
-rw-r--r--lib/spack/spack/spec.py2
2 files changed, 3 insertions, 1 deletions
diff --git a/lib/spack/spack/concretize.py b/lib/spack/spack/concretize.py
index fb8dfb3ee4..801d3f162a 100644
--- a/lib/spack/spack/concretize.py
+++ b/lib/spack/spack/concretize.py
@@ -183,6 +183,8 @@ class DefaultConcretizer(object):
"""
ret = False
for flag in Compiler.valid_compiler_flags():
+ if flag in spec.compiler_flags:
+ continue
try:
nearest = next(p for p in spec.traverse(direction='parents')
if ((p.compiler == spec.compiler and p is not spec)
diff --git a/lib/spack/spack/spec.py b/lib/spack/spack/spec.py
index 72117e1cb3..406bb6aa43 100644
--- a/lib/spack/spack/spec.py
+++ b/lib/spack/spack/spec.py
@@ -1745,7 +1745,7 @@ class Spec(object):
showid = kwargs.pop('ids', False)
cover = kwargs.pop('cover', 'nodes')
indent = kwargs.pop('indent', 0)
- fmt = kwargs.pop('format', '$_$@$%@$+$+arch=')
+ fmt = kwargs.pop('format', '$_$@$%@+$+$=')
prefix = kwargs.pop('prefix', None)
check_kwargs(kwargs, self.tree)