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##############################################################################
# Copyright (c) 2013-2017, Lawrence Livermore National Security, LLC.
# Produced at the Lawrence Livermore National Laboratory.
#
# This file is part of Spack.
# Created by Todd Gamblin, tgamblin@llnl.gov, All rights reserved.
# LLNL-CODE-647188
#
# For details, see https://github.com/spack/spack
# Please also see the NOTICE and LICENSE files for our notice and the LGPL.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License (as
# published by the Free Software Foundation) version 2.1, February 1999.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the terms and
# conditions of the GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
##############################################################################

from spack import *


class Openscenegraph(CMakePackage):
    """OpenSceneGraph is an open source, high performance 3D graphics toolkit
       that's used in a variety of visual simulation applications."""

    homepage = "http://www.openscenegraph.org"
    url      = "http://trac.openscenegraph.org/downloads/developer_releases/OpenSceneGraph-3.2.3.zip"

    version('3.2.3', '02ffdad7744c747d8fad0d7babb58427')
    version('3.1.5', '1c90b851b109849c985006486ef59822')

    variant('shared', default=True, description='Builds a shared version of the library')

    depends_on('cmake@2.8.7:', type='build')
    depends_on('qt@4:')
    depends_on('zlib')

    def cmake_args(self):
        spec = self.spec

        shared_status = 'ON' if '+shared' in spec else 'OFF'

        args = [
            '-DDYNAMIC_OPENSCENEGRAPH={0}'.format(shared_status),
            '-DDYNAMIC_OPENTHREADS={0}'.format(shared_status),
            '-DZLIB_INCLUDE_DIR={0}'.format(spec['zlib'].prefix.include),
            '-DZLIB_LIBRARY={0}/libz.{1}'.format(spec['zlib'].prefix.lib,
                                                 dso_suffix),
            '-DBUILD_OSG_APPLICATIONS=OFF',
            '-DOSG_NOTIFY_DISABLED=ON',
            '-DLIB_POSTFIX=',
        ]

        # NOTE: This is necessary in order to allow OpenSceneGraph to compile
        # despite containing a number of implicit bool to int conversions.
        if spec.satisfies('%gcc'):
            args.extend([
                '-DCMAKE_C_FLAGS=-fpermissive',
                '-DCMAKE_CXX_FLAGS=-fpermissive',
            ])

        return args