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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 Apfel(AutotoolsPackage):
"""APFEL is a library able to perform DGLAP evolution up to NNLO in QCD and
to NLO in QED, both with pole and MSbar masses. The coupled DGLAP
QCD+QED evolution equations are solved in x-space by means of higher
order interpolations and Runge-Kutta techniques."""
homepage = "https://github.com/scarrazza/apfel"
url = "https://github.com/scarrazza/apfel/archive/3.0.4.tar.gz"
tags = ["hep"]
license("GPL-3.0-or-later")
version("3.0.6", sha256="7063c9eee457e030b97926ac166cdaedd84625b31397e1dfd01ae47371fb9f61")
version("3.0.4", sha256="c7bfae7fe2dc0185981850f2fe6ae4842749339d064c25bf525b4ef412bbb224")
depends_on("swig", when="+python")
depends_on("python", type=("build", "run"))
depends_on("lhapdf", when="+lhapdf", type=("build", "run"))
variant("python", description="Build python wrapper", default=False)
variant("lhapdf", description="Link to LHAPDF", default=False)
def configure_args(self):
args = []
if self.spec.satisfies("~python"):
args.append("--disable-pywrap")
else:
args.append("--enable-pywrap")
args += self.enable_or_disable("lhapdf")
return args
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