diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/spack/spack/package_base.py | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/spack/spack/package_base.py b/lib/spack/spack/package_base.py index 50ea97a9d4..82d04afb97 100644 --- a/lib/spack/spack/package_base.py +++ b/lib/spack/spack/package_base.py @@ -199,10 +199,10 @@ class DetectablePackageMeta(type): # assumed to be detectable if hasattr(cls, "executables") or hasattr(cls, "libraries"): # Append a tag to each detectable package, so that finding them is faster - if hasattr(cls, "tags"): - getattr(cls, "tags").append(DetectablePackageMeta.TAG) - else: + if not hasattr(cls, "tags"): setattr(cls, "tags", [DetectablePackageMeta.TAG]) + elif DetectablePackageMeta.TAG not in cls.tags: + cls.tags.append(DetectablePackageMeta.TAG) @classmethod def platform_executables(cls): |