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 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 Folly(AutotoolsPackage):
      """Folly (acronymed loosely after Facebook Open Source Library) is a
      library of C++11 components designed with practicality and efficiency
      in mind.
  
      Folly contains a variety of core library components used extensively at
      Facebook. In particular, it's often a dependency of Facebook's other open
      source C++ efforts and place where those projects can share code.
      """
  
      homepage = "https://github.com/facebook/folly"
      url = "https://github.com/facebook/folly/archive/v2017.06.05.00.tar.gz"
  
      version('2017.06.05.00', 'a25e8d646702c3e0c1400f591e485a33')
  
      depends_on('m4', type='build')
      depends_on('autoconf', type='build')
      depends_on('automake', type='build')
      depends_on('libtool', type='build')
      depends_on('pkg-config', type='build')
  
      # TODO: folly requires gcc 4.9+ and a version of boost compiled with
      # TODO: C++14 support (but there's no neat way to check that these
      # TODO: constraints are met right now)
      depends_on('boost')
  
      depends_on('gflags')
      depends_on('glog')
      depends_on('double-conversion')
      depends_on('libevent')
  
      configure_directory = 'folly'
  
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 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 Folly(AutotoolsPackage):
      """Folly (acronymed loosely after Facebook Open Source Library) is a
      library of C++11 components designed with practicality and efficiency
      in mind.
  
      Folly contains a variety of core library components used extensively at
      Facebook. In particular, it's often a dependency of Facebook's other open
      source C++ efforts and place where those projects can share code.
      """
  
      homepage = "https://github.com/facebook/folly"
      url = "https://github.com/facebook/folly/archive/v2017.06.05.00.tar.gz"
  
      version('2017.06.05.00', 'a25e8d646702c3e0c1400f591e485a33')
      version('2016.11.14.00', '88550acdb4d4b331c0ca9922039c8727')
      version('2016.11.07.00', '2f605b20ad539bccdbfd361daa92081e')
      version('2016.10.31.00', 'ab3049302792f8470cef64f3a29eedec')
      version('2016.10.24.00', '0445efb7c16b5c32dfbb173157e54866')
      version('2016.10.17.00', 'b7e01934a45c5036fab8fdc70e9eaf4d')
  
      depends_on('m4', type='build')
      depends_on('autoconf', type='build')
      depends_on('automake', type='build')
      depends_on('libtool', type='build')
      depends_on('pkg-config', type='build')
  
      # TODO: folly requires gcc 4.9+ and a version of boost compiled with
      # TODO: C++14 support (but there's no neat way to check that these
      # TODO: constraints are met right now)
      depends_on('boost')
  
      depends_on('gflags')
      depends_on('glog')
      depends_on('double-conversion')
      depends_on('libevent')
  
      configure_directory = 'folly'
  
subject: add older versions to package folly (#5088)