new_contents: ##############################################################################
  # Copyright (c) 2013-2016, 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/llnl/spack
  # Please also see the LICENSE file 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 Cgns(Package):
      """The CFD General Notation System (CGNS) provides a general, portable,
      and extensible standard for the storage and retrieval of computational
      fluid dynamics (CFD) analysis data."""
  
      homepage = "http://cgns.github.io/"
      url      = "https://github.com/CGNS/CGNS/archive/v3.3.0.tar.gz"
  
      version('3.3.0', '64e5e8d97144c1462bee9ea6b2a81d7f')
  
      variant('hdf5', default=True, description='Enable HDF5 interface')
  
      depends_on('cmake', type='build')
      depends_on('hdf5', when='+hdf5')
  
      def install(self, spec, prefix):
          cmake_args = std_cmake_args[:]
  
          if self.compiler.f77 and self.compiler.fc:
              cmake_args.append('-DCGNS_ENABLE_FORTRAN=ON')
          else:
              cmake_args.append('-DCGNS_ENABLE_FORTRAN=OFF')
  
          if '+hdf5' in spec:
              cmake_args.extend([
                  '-DCGNS_ENABLE_HDF5=ON',
                  '-DHDF5_NEEDS_ZLIB=ON'
              ])
  
              if spec.satisfies('^hdf5+mpi'):
                  cmake_args.append('-DHDF5_NEEDS_MPI=ON')
              else:
                  cmake_args.append('-DHDF5_NEEDS_MPI=OFF')
  
              if spec.satisfies('^hdf5+szip'):
                  cmake_args.append('-DHDF5_NEEDS_SZIP=ON')
              else:
                  cmake_args.append('-DHDF5_NEEDS_SZIP=OFF')
          else:
              cmake_args.append('-DCGNS_ENABLE_HDF5=OFF')
  
          with working_dir('spack-build', create=True):
              cmake('..', *cmake_args)
  
              make()
              make('install')
  
subject: Add CGNS package