From 8a1fce68d7df65d60187da7b0ebea1693dfe2998 Mon Sep 17 00:00:00 2001
From: Harmen Stoppels <me@harmenstoppels.nl>
Date: Wed, 16 Apr 2025 11:07:52 +0200
Subject: [PATCH] testing..

---
 lib/spack/spack/builder.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/spack/spack/builder.py b/lib/spack/spack/builder.py
index bf0c1912283..50246fa9512 100644
--- a/lib/spack/spack/builder.py
+++ b/lib/spack/spack/builder.py
@@ -1,6 +1,7 @@
 # Copyright Spack Project Developers. See COPYRIGHT file for details.
 #
 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
+import abc
 import collections
 import collections.abc
 import copy
@@ -213,7 +214,8 @@ def buildsystem_name(pkg: spack.package_base.PackageBase) -> str:
 class BuilderMeta(
     spack.phase_callbacks.PhaseCallbacksMeta,
     spack.multimethod.MultiMethodMeta,
-    type(collections.abc.Sequence),  # type: ignore
+    abc.ABCMeta,
+    type(Generic),
 ):
     pass