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 Gperftools(AutotoolsPackage):
      """Google's fast malloc/free implementation, especially for
         multi-threaded applications.  Contains tcmalloc, heap-checker,
         heap-profiler, and cpu-profiler.
  
      """
      homepage = "https://code.google.com/p/gperftools"
      url      = "https://googledrive.com/host/0B6NtGsLhIcf7MWxMMF9JdTN3UVk/gperftools-2.3.tar.gz"
  
      version('2.4', '2171cea3bbe053036fb5d5d25176a160',
              url="https://github.com/gperftools/gperftools/releases/download/gperftools-2.4/gperftools-2.4.tar.gz")
      version('2.3', 'f54dd119f0e46ac1f13264f8d97adf90',
              url="https://googledrive.com/host/0B6NtGsLhIcf7MWxMMF9JdTN3UVk/gperftools-2.3.tar.gz")
  
      depends_on("libunwind")
  
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 Gperftools(AutotoolsPackage):
      """Google's fast malloc/free implementation, especially for
         multi-threaded applications.  Contains tcmalloc, heap-checker,
         heap-profiler, and cpu-profiler.
  
      """
      homepage = "https://code.google.com/p/gperftools"
      url      = "https://googledrive.com/host/0B6NtGsLhIcf7MWxMMF9JdTN3UVk/gperftools-2.3.tar.gz"
  
      version('2.4', '2171cea3bbe053036fb5d5d25176a160',
              url="https://github.com/gperftools/gperftools/releases/download/gperftools-2.4/gperftools-2.4.tar.gz")
      version('2.3', 'f54dd119f0e46ac1f13264f8d97adf90',
              url="https://googledrive.com/host/0B6NtGsLhIcf7MWxMMF9JdTN3UVk/gperftools-2.3.tar.gz")
  
      depends_on("unwind")
  
subject: use unwind virtual package