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 LibjpegTurbo(AutotoolsPackage):
      """libjpeg-turbo is a fork of the original IJG libjpeg which uses SIMD to
         accelerate baseline JPEG compression and decompression. libjpeg is a
         library that implements JPEG image encoding, decoding and
         transcoding."""
  
      homepage = "http://libjpeg-turbo.virtualgl.org"
      url      = "http://downloads.sourceforge.net/libjpeg-turbo/libjpeg-turbo-1.3.1.tar.gz"
  
      version('1.5.0', '3fc5d9b6a8bce96161659ae7a9939257')
      version('1.3.1', '2c3a68129dac443a72815ff5bb374b05')
  
      provides('jpeg')
  
      # Can use either of these. But in the current version of the package
      # only nasm is used. In order to use yasm an environmental variable
      # NASM must be set.
      # TODO: Implement the selection between two supported assemblers.
      # depends_on("yasm", type='build')
      depends_on("nasm", type='build')
  
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 LibjpegTurbo(AutotoolsPackage):
      """libjpeg-turbo is a fork of the original IJG libjpeg which uses SIMD to
         accelerate baseline JPEG compression and decompression. libjpeg is a
         library that implements JPEG image encoding, decoding and
         transcoding."""
  
      homepage = "http://libjpeg-turbo.virtualgl.org"
      url      = "https://sourceforge.net/projects/libjpeg-turbo/files/1.5.3/libjpeg-turbo-1.5.3.tar.gz"
  
      version('1.5.3', '7c82f0f6a3130ec06b8a4d0b321cbca3')
      version('1.5.0', '3fc5d9b6a8bce96161659ae7a9939257')
      version('1.3.1', '2c3a68129dac443a72815ff5bb374b05')
  
      provides('jpeg')
  
      # Can use either of these. But in the current version of the package
      # only nasm is used. In order to use yasm an environmental variable
      # NASM must be set.
      # TODO: Implement the selection between two supported assemblers.
      # depends_on("yasm", type='build')
      depends_on("nasm", type='build')
  
subject: Add latest version of libjpeg-turbo (#7518)