old_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 PyCffi(Package):
      """Foreign Function Interface for Python calling C code"""
      homepage = "http://cffi.readthedocs.org/en/latest/"
      # base https://pypi.python.org/pypi/cffi
      url      = "https://pypi.python.org/packages/source/c/cffi/cffi-1.1.2.tar.gz"
  
      version('1.1.2', 'ca6e6c45b45caa87aee9adc7c796eaea')
  
      extends('python')
      depends_on('py-setuptools', type='build')
      depends_on('py-pycparser', type=nolink)
      depends_on('libffi')
  
      def install(self, spec, prefix):
          python('setup.py', 'install', '--prefix=%s' % prefix)
  
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
  ##############################################################################
  import os
  
  from spack import *
  
  
  class PyCffi(Package):
      """Foreign Function Interface for Python calling C code"""
      homepage = "http://cffi.readthedocs.org/en/latest/"
      # base https://pypi.python.org/pypi/cffi
      url      = "https://pypi.python.org/packages/source/c/cffi/cffi-1.1.2.tar.gz"
  
      version('1.1.2', 'ca6e6c45b45caa87aee9adc7c796eaea')
  
      extends('python')
      depends_on('py-setuptools', type='build')
      depends_on('py-pycparser', type=nolink)
      depends_on('libffi')
  
      def install(self, spec, prefix):
          # This sets the compiler (and flags) that distutils will use
          # to create the final shared library.  It will use the
          # compiler specified by the environment variable 'CC' for all
          # other compilation.  We are setting the 'LDSHARED" to the
          # spack compiler wrapper plus a few extra flags necessary for
          # building the shared library.
          os.environ['LDSHARED'] = "{0} -shared -pthread".format(spack_cc)
  
          python('setup.py', 'install', '--prefix=%s' % prefix)
  
subject: set LDSHARED env so that rpath is set