var/spack/repos/builtin.mock/packages/conditional-provider/package.py


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# 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 ConditionalProvider(Package):
    """Mimic the real netlib-lapack, that may be built on top of an
    optimized blas.
    """

    homepage = "https://dev.null"

    version("1.0")

    variant("disable-v1", default=False, description="nope")

    provides("v2")
    provides("v1", when="~disable-v1")

    depends_on("v1", when="+disable-v1")