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# Copyright 2013-2019 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 import *
class Cddlib(AutotoolsPackage):
"""The C-library cddlib is a C implementation of the Double Description
Method of Motzkin et al. for generating all vertices (i.e. extreme points)
and extreme rays of a general convex polyhedron in R^d given by a system
of linear inequalities"""
homepage = "https://www.inf.ethz.ch/personal/fukudak/cdd_home/"
url = "ftp://ftp.math.ethz.ch/users/fukudak/cdd/cddlib-094h.tar.gz"
version('0.94h', sha256='fe6d04d494683cd451be5f6fe785e147f24e8ce3ef7387f048e739ceb4565ab5')
# Note: It should be possible to build cddlib also without gmp
depends_on("gmp")
depends_on("libtool", type="build")
def url_for_version(self, version):
url = "ftp://ftp.math.ethz.ch/users/fukudak/cdd/cddlib-{0}.tar.gz"
return url.format(version.joined)
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