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/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 Snappy(CMakePackage):
      """A fast compressor/decompressor: https://code.google.com/p/snappy"""
  
      homepage = "https://github.com/google/snappy"
      url      = "https://github.com/google/snappy/archive/1.1.7.tar.gz"
  
      version('1.1.7', 'ee9086291c9ae8deb4dac5e0b85bf54a')
  
      @run_after('install')
      def install_pkgconfig(self):
          mkdirp(self.prefix.lib.pkgconfig)
  
          with open(join_path(self.prefix.lib.pkgconfig, 'snappy.pc'), 'w') as f:
              f.write('prefix={0}\n'.format(self.prefix))
              f.write('exec_prefix=${prefix}\n')
              f.write('libdir={0}\n'.format(self.prefix.lib))
              f.write('includedir={0}\n'.format(self.prefix.include))
              f.write('\n')
              f.write('Name: Snappy\n')
              f.write('Description: A fast compressor/decompressor.\n')
              f.write('Version: {0}\n'.format(self.spec.version))
              f.write('Cflags: -I${includedir}\n')
              f.write('Libs: -L${libdir} -lsnappy\n')
  
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/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 Snappy(CMakePackage):
      """A fast compressor/decompressor: https://code.google.com/p/snappy"""
  
      homepage = "https://github.com/google/snappy"
      url      = "https://github.com/google/snappy/archive/1.1.7.tar.gz"
  
      version('1.1.7', 'ee9086291c9ae8deb4dac5e0b85bf54a')
  
      variant('shared', default=True, description='Build shared libraries')
  
      def cmake_args(self):
          spec = self.spec
  
          args = [
              '-DCMAKE_INSTALL_LIBDIR:PATH={0}'.format(
                  self.prefix.lib),
              '-DBUILD_SHARED_LIBS:BOOL={0}'.format(
                  'ON' if '+shared' in spec else 'OFF')
          ]
  
          return args
  
      @run_after('install')
      def install_pkgconfig(self):
          mkdirp(self.prefix.lib.pkgconfig)
  
          with open(join_path(self.prefix.lib.pkgconfig, 'snappy.pc'), 'w') as f:
              f.write('prefix={0}\n'.format(self.prefix))
              f.write('exec_prefix=${prefix}\n')
              f.write('libdir={0}\n'.format(self.prefix.lib))
              f.write('includedir={0}\n'.format(self.prefix.include))
              f.write('\n')
              f.write('Name: Snappy\n')
              f.write('Description: A fast compressor/decompressor.\n')
              f.write('Version: {0}\n'.format(self.spec.version))
              f.write('Cflags: -I${includedir}\n')
              f.write('Libs: -L${libdir} -lsnappy\n')
  
subject: Build shared library by default (#5534)