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-rw-r--r--lib/spack/spack/directives.py3
-rw-r--r--lib/spack/spack/test/directives.py9
2 files changed, 11 insertions, 1 deletions
diff --git a/lib/spack/spack/directives.py b/lib/spack/spack/directives.py
index f7400f4da9..c23146125a 100644
--- a/lib/spack/spack/directives.py
+++ b/lib/spack/spack/directives.py
@@ -466,7 +466,8 @@ def extends(spec, type=('build', 'run'), **kwargs):
return
_depends_on(pkg, spec, when=when, type=type)
- pkg.extendees[spec] = (spack.spec.Spec(spec), kwargs)
+ spec_obj = spack.spec.Spec(spec)
+ pkg.extendees[spec_obj.name] = (spec_obj, kwargs)
return _execute_extends
diff --git a/lib/spack/spack/test/directives.py b/lib/spack/spack/test/directives.py
index 31038ebb47..ad7c98bdb9 100644
--- a/lib/spack/spack/test/directives.py
+++ b/lib/spack/spack/test/directives.py
@@ -51,3 +51,12 @@ def test_constraints_from_context_are_merged(mock_packages):
assert pkg_cls.dependencies
assert spack.spec.Spec('@0.14:15 ^b@3.8:4.0') in pkg_cls.dependencies['c']
+
+
+@pytest.mark.regression('27754')
+def test_extends_spec(config, mock_packages):
+ extender = spack.spec.Spec('extends-spec').concretized()
+ extendee = spack.spec.Spec('extendee').concretized()
+
+ assert extender.dependencies
+ assert extender.package.extends(extendee)