old_contents: ##############################################################################
  # 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 Libtiff(AutotoolsPackage):
      """libtiff graphics format library"""
      homepage = "http://www.simplesystems.org/libtiff/"
      url      = "http://download.osgeo.org/libtiff/tiff-4.0.8.tar.gz"
  
      version('4.0.8', '2a7d1c1318416ddf36d5f6fa4600069b')
      version('4.0.7', '77ae928d2c6b7fb46a21c3a29325157b')
      version('4.0.6', 'd1d2e940dea0b5ad435f21f03d96dd72')
      version('4.0.3', '051c1068e6a0627f461948c365290410')
  
      depends_on('jpeg')
      depends_on('zlib')
      depends_on('xz')
  
new_contents: ##############################################################################
  # 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 Libtiff(AutotoolsPackage):
      """libtiff graphics format library"""
      homepage = "http://www.simplesystems.org/libtiff/"
      url      = "http://download.osgeo.org/libtiff/tiff-4.0.8.tar.gz"
  
      version('4.0.8', '2a7d1c1318416ddf36d5f6fa4600069b')
      version('4.0.7', '77ae928d2c6b7fb46a21c3a29325157b')
      version('4.0.6', 'd1d2e940dea0b5ad435f21f03d96dd72')
      version('4.0.3', '051c1068e6a0627f461948c365290410')
      version('3.9.7', '626102f448ba441d42e3212538ad67d2')
  
      depends_on('jpeg')
      depends_on('zlib')
      depends_on('xz')
  
subject: Add libtiff@3. (#6818)