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 *
  import glob
  import os
  import shutil
  
  
  class Alglib(MakefilePackage):
      """ALGLIB is a cross-platform numerical analysis and data processing
      library."""
  
      homepage = "http://www.alglib.net"
      url      = "http://www.alglib.net/translator/re/alglib-3.11.0.cpp.gpl.tgz"
  
      version('3.11.0', 'f87bb05349924d486e8809590dee9f80')
  
      def url_for_version(self, version):
          return 'http://www.alglib.net/translator/re/alglib-{0}.cpp.gpl.tgz'.format(version.dotted)
  
      build_directory = 'src'
  
      def edit(self, spec, prefix):
          # this package has no build system!
          make_file_src = join_path(os.path.dirname(self.module.__file__),
                                    'Makefile')
          make_file = join_path(self.stage.source_path, 'src', 'Makefile')
          shutil.copy(make_file_src, make_file)
          filter_file(r'so', dso_suffix, make_file)
  
      def install(self, spec, prefix):
          name = 'libalglib.{0}'.format(dso_suffix)
          with working_dir('src'):
              mkdirp(prefix.lib)
              install(name, prefix.lib)
              mkdirp(prefix.include)
              headers = glob.glob('*.h')
              for h in headers:
                  install(h, prefix.include)
  
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 *
  import glob
  import os
  import sys
  import shutil
  
  
  class Alglib(MakefilePackage):
      """ALGLIB is a cross-platform numerical analysis and data processing
      library."""
  
      homepage = "http://www.alglib.net"
      url      = "http://www.alglib.net/translator/re/alglib-3.11.0.cpp.gpl.tgz"
  
      version('3.11.0', 'f87bb05349924d486e8809590dee9f80')
  
      def url_for_version(self, version):
          return 'http://www.alglib.net/translator/re/alglib-{0}.cpp.gpl.tgz'.format(version.dotted)
  
      build_directory = 'src'
  
      def edit(self, spec, prefix):
          # this package has no build system!
          make_file_src = join_path(os.path.dirname(self.module.__file__),
                                    'Makefile')
          make_file = join_path(self.stage.source_path, 'src', 'Makefile')
          shutil.copy(make_file_src, make_file)
          filter_file(r'so', dso_suffix, make_file)
  
      def install(self, spec, prefix):
          name = 'libalglib.{0}'.format(dso_suffix)
          with working_dir('src'):
              mkdirp(prefix.lib)
              install(name, prefix.lib)
              mkdirp(prefix.include)
              headers = glob.glob('*.h')
              for h in headers:
                  install(h, prefix.include)
  
      @run_after('install')
      def fix_darwin_install(self):
          # The shared libraries are not installed correctly on Darwin:
          if sys.platform == 'darwin':
              fix_darwin_install_name(self.spec.prefix.lib)
  
subject: fix on Darwin (#7534)