# Copyright 2013-2018 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 Exabayes(AutotoolsPackage):
    """ExaBayes is a software package for Bayesian tree inference. It is
       particularly suitable for large-scale analyses on computer clusters."""

    homepage = "https://sco.h-its.org/exelixis/web/software/exabayes/"
    url      = "https://sco.h-its.org/exelixis/resource/download/software/exabayes-1.5.tar.gz"

    version('1.5', '6a734777b8f8eff0a520306500c8c419')

    variant('mpi', default=True, description='Enable MPI parallel support')

    depends_on('mpi', when='+mpi')

    # ExaBayes manual states the program succesfully compiles with GCC, version
    # 4.6 or greater, and Clang, version 3.2 or greater. The build fails when
    # GCC 7.1.0 is used.
    conflicts('%gcc@:4.5.4, 7.1.0:')
    conflicts('%clang@:3.1')
    conflicts('^intel-mpi', when='+mpi')
    conflicts('^intel-parallel-studio+mpi', when='+mpi')
    conflicts('^mvapich2', when='+mpi')
    conflicts('^spectrum-mpi', when='+mpi')

    def configure_args(self):
        args = []
        if '+mpi' in self.spec:
            args.append('--enable-mpi')
        else:
            args.append('--disable-mpi')
        return args