vtk-m: correct cuda_arch variant behavior (#38697)

Co-authored-by: eugeneswalker <eugenesunsetwalker@gmail.com>

1 files changed, 37 insertions, 0 deletions

diff --git a/var/spack/repos/builtin.mock/packages/vtk-m/package.py b/var/spack/repos/builtin.mock/packages/vtk-m/package.py
new file mode 100644
index 0000000000..9c1eadf4c6
--- /dev/null
+++ b/var/spack/repos/builtin.mock/packages/vtk-m/package.py
@@ -0,0 +1,37 @@
+# Copyright 2013-2023 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+from spack.package import *
+
+
+class VtkM(CMakePackage):
+    """This is a fake vtk-m package used to demonstrate virtual package providers
+    with dependencies."""
+
+    homepage = "http://www.spack-fake-vtk-m.org"
+    url = "http://www.spack-fake-vtk-m.org/downloads/vtk-m-1.0.tar.gz"
+
+    version("1.0", md5="0123456789abcdef0123456789abcdef")
+
+    variant("cuda", default=False, description="Build with CUDA")
+    variant(
+        "cuda_arch",
+        description="CUDA architecture",
+        default="none",
+        values=("70", "none"),
+        multi=False,
+        when="+cuda",
+    )
+
+    variant("rocm", default=False, description="Enable ROCm support")
+    variant(
+        "amdgpu_target",
+        default="none",
+        description="AMD GPU architecture",
+        values=("gfx900", "none"),
+        multi=False,
+        when="+rocm",
+    )
+    depends_on("cmake@3.18:")