old_contents: ##############################################################################
  # Copyright (c) 2013-2018, 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 PyLlvmlite(PythonPackage):
      """A lightweight LLVM python binding for writing JIT compilers"""
  
      homepage = "http://llvmlite.readthedocs.io/en/latest/index.html"
      url      = "https://pypi.io/packages/source/l/llvmlite/llvmlite-0.20.0.tar.gz"
  
      version('0.20.0', 'f2aa60d0981842b7930ba001b03679ab')
  
      depends_on('py-setuptools', type='build')
      depends_on('py-enum34',     type=('build', 'run'), when='^python@:3.3.99')
      depends_on('llvm@4.0:4.99', when='@0.17.0:0.20.99')
      depends_on('binutils', type='build')
  
new_contents: ##############################################################################
  # Copyright (c) 2013-2018, 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 PyLlvmlite(PythonPackage):
      """A lightweight LLVM python binding for writing JIT compilers"""
  
      homepage = "http://llvmlite.readthedocs.io/en/latest/index.html"
      url = "https://pypi.io/packages/source/l/llvmlite/llvmlite-0.23.0.tar.gz"
  
      version('0.23.0', '6fc856576a11dbeef71de862f7c419de')
      version('0.20.0', 'f2aa60d0981842b7930ba001b03679ab')
  
      depends_on('py-setuptools', type='build')
      depends_on('python@2.6:2.8,3.4:', type=('build', 'run'))
      depends_on('py-enum34', type=('build', 'run'), when='^python@:3.3.99')
      depends_on('llvm@6.0:', when='@0.23.0:')
      depends_on('llvm@4.0:4.99', when='@0.17.0:0.20.99')
      depends_on('binutils', type='build')
  
subject: Update py-llvmlite to reflect llvm@6 requirement for versions >0.23.0 (#8109)