text: # Copyright 2013-2020 Lawrence Livermore National Security, LLC and other
  # Spack Project Developers. See the top-level COPYRIGHT file for details.
  #
  # SPDX-License-Identifier: (Apache-2.0 OR MIT)
  
  from spack import *
  import glob
  import inspect
  import platform
  
  
  class IntelTbb(Package):
      """Widely used C++ template library for task parallelism.
      Intel Threading Building Blocks (Intel TBB) lets you easily write parallel
      C++ programs that take full advantage of multicore performance, that are
      portable and composable, and that have future-proof scalability.
      """
      homepage = "http://www.threadingbuildingblocks.org/"
  
      # Note: when adding new versions, please check and update the
      # patches and filters below as needed.
  
      # See url_for_version() below.
      version('2020', sha256='db80f4f7abb95c2d08fe64abdc0a9250903e4c725f1c667ac517450de426023a')
      version('2019.8', sha256='7b1fd8caea14be72ae4175896510bf99c809cd7031306a1917565e6de7382fba')
      version('2019.7', sha256='4204a93f4c0fd989fb6f79acae74feb02ee39725c93968773d9b6efeb75c7a6a')
      version('2019.6', sha256='2ba197b3964fce8a84429dd15b75eba7434cb89afc54f86d5ee6f726fdbe97fd')
      version('2019.5', sha256='2ea82d74dec50e18075b4982b8d360f8bd2bf2950f38e2db483aef82e0047444')
      version('2019.4', sha256='342a0a2cd583879850658284b86e9351ea019b4f3fcd731f4c18456f0ce9f900')
      version('2019.3', sha256='b2244147bc8159cdd8f06a38afeb42f3237d3fc822555499d7ccfbd4b86f8ece')
      version('2019.2', sha256='1245aa394a92099e23ce2f60cdd50c90eb3ddcd61d86cae010ef2f1de61f32d9')
      version('2019.1', sha256='a4875c6b6853213083e52ecd303546bdf424568ec67cfc7e51d132a7c037c66a')
      version('2019',   sha256='4d149895826cea785cd3b9a14f4aa743b6ef0df520eca7ee27d438fdc3d73399')
      version('2018.6', sha256='d3e5fbca3cc643d03bf332d576ff85e19aa774b483f148f95cd7d09958372109')
      version('2018.5', sha256='c4c2896af527392496c5e01ef8579058a71b6eebbd695924cd138841c13f07be')
      version('2018.4', sha256='d5604a04787c8a037d4944eeb89792e7c45f6a83c141b20df7ee89c2fb012ed1')
      version('2018.3', sha256='23793c8645480148e9559df96b386b780f92194c80120acce79fcdaae0d81f45')
      version('2018.2', sha256='78bb9bae474736d213342f01fe1a6d00c6939d5c75b367e2e43e7bf29a6d8eca')
      version('2018.1', sha256='c6462217d4ecef2b44fce63cfdf31f9db4f6ff493869899d497a5aef68b05fc5')
      version('2018',   sha256='94f643f1edfaccb57d64b503c7c96f00dec64e8635c054bbaa33855d72c5822d')
      version('2017.8', sha256='1b1357f280e750d42506212adad02f85ac07c9d3e3c0813104f9122ef350497f')
      version('2017.7', sha256='78ad6ec9dd492b9dcc4753938b06716f7458506084adc138ced09aa0aa609b6b')
      version('2017.6', sha256='40d5409a6fd7e214a21fd1949df422ba113fa78fde42a6aac40a2fba36e9bcdb')
      version('2017.5', sha256='3122c87a35fde759567c8579ba36a36037c6df84c3f9c4df6c9e171f866f352f')
      version('2017.4', sha256='ed4f0cfc4acec8a0cf253037e8c555dd32ebe1b80b34fb0e3b2bf54087932562')
      version('2017.3', sha256='00a8b2798c498507572e24c2db7bf4896f05b760a38ed9ba566ffd348a7c6cef')
      version('2017.2', sha256='85e44041d967ce8c70077dbb57941cfa1d351688855aec47eb14c74eb2075f28')
      version('2017.1', sha256='a68bb7926fb9bee2a5f17b293c6d6aa33ccb089c3b321569bd4fe281cf65fa77')
      version('2017',   sha256='c49139279067df1260dae4f0fe7e4d485898ce45e5f7e314c37eb5da8a0c303a')
      version('4.4.6',  sha256='1d6b7e7db9141238c70984103f04280605dbcaa7fbcd049d332d2e73deed4f6d')
      version('4.4.5',  sha256='984308f9dd8a36ff274c124b6f7f7d0ff74d4b7ebdf06511af78e098b5b6e70f')
      version('4.4.4',  sha256='40e94c1adfd13308d207971629316ae9f76639b24f080bae8757c42d35778f10')
      version('4.4.3',  sha256='9acb1c4e71edc3d5004ab9f0ed2bbd697ecec28a4315bbd2be8c5365e8214b90')
      version('4.4.2',  sha256='3f6d7a32ac8b58469de7df3a2fcfe318793241ea39ce73aae1e637dbed833375')
      version('4.4.1',  sha256='d67c5860ba1116b320b0d60a0ce403b088dc19355ab32c28cdaa3e352609713a')
      version('4.4',    sha256='88e37f08ffcfaa24a2caf6c1a9084000cce689cc4b11edea7e89b20ab74ceceb')
  
      provides('tbb')
  
      # Clang builds incorrectly determine GCC version which in turn incorrectly
      # causes a mismatch in C++ features resulting in a link error. This also
      # means that clang builds require a gcc compiler to work correctly (this
      # has always been the case).
      #
      #    See https://github.com/intel/tbb/pull/147 for details.
      #
      conflicts('%clang', when='@:2019.6',
                msg='2019.7 or later required for clang')
  
      conflicts('%gcc@6.1:', when='@:4.4.3',
                msg='4.4.4 or later required for GCC >= 6.1.')
  
      variant('shared', default=True,
              description='Builds a shared version of TBB libraries')
  
      variant('cxxstd',
              default='default',
              values=('default', '98', '11', '14', '17'),
              multi=False,
              description='Use the specified C++ standard when building.')
  
      variant('tm', default=True,
              description='Enable use of transactional memory on x86')
  
      # Testing version ranges inside when clauses was fixed in e9ee9eaf.
      # See: #8957 and #13989.
  
      # Build and install CMake config files if we're new enough.
      # CMake support started in 2017.7.
      depends_on('cmake@3.0.0:', type='build', when='@2017.7:')
  
      # Patch for pedantic warnings (#10836).  This was fixed in the TBB
      # source tree in 2019.6.
      patch("gcc_generic-pedantic-2019.patch", level=1, when='@2019.1:2019.5')
      patch("gcc_generic-pedantic-4.4.patch",  level=1, when='@:2019.0')
  
      # Patch cmakeConfig.cmake.in to find the libraries where we install them.
      patch("tbb_cmakeConfig-2019.5.patch", level=0, when='@2019.5:')
      patch("tbb_cmakeConfig.patch", level=0, when='@2017.7:2019.4')
  
      # Some very old systems don't support transactional memory.
      patch("disable-tm.patch", when='~tm')
  
      def url_for_version(self, version):
          url = 'https://github.com/01org/tbb/archive/{0}.tar.gz'
          if (version[0] >= 2017) and len(version) > 1:
              return url.format('{0}_U{1}'.format(version[0], version[1]))
          else:
              return url.format(version)
  
      def coerce_to_spack(self, tbb_build_subdir):
          for compiler in ["icc", "gcc", "clang"]:
              fs = glob.glob(join_path(tbb_build_subdir,
                                       "*.%s.inc" % compiler))
              for f in fs:
                  lines = open(f).readlines()
                  of = open(f, "w")
                  for l in lines:
                      if l.strip().startswith("CPLUS ="):
                          of.write("# coerced to spack\n")
                          of.write("CPLUS = $(CXX)\n")
                      elif l.strip().startswith("CONLY ="):
                          of.write("# coerced to spack\n")
                          of.write("CONLY = $(CC)\n")
                      else:
                          of.write(l)
  
      def install(self, spec, prefix):
          # Deactivate use of RTM with GCC when on an OS with a very old
          # assembler.
          if (spec.satisfies('%gcc@4.8.0: os=rhel6')
              or spec.satisfies('%gcc@4.8.0: os=centos6')
              or spec.satisfies('%gcc@4.8.0: os=scientific6')):
              filter_file(r'RTM_KEY.*=.*rtm.*', 'RTM_KEY =',
                          join_path('build', 'linux.gcc.inc'))
  
          # We need to follow TBB's compiler selection logic to get the proper
          # build + link flags but we still need to use spack's compiler wrappers
          # to accomplish this, we do two things:
          #
          # * Look at the spack spec to determine which compiler we should pass
          #   to tbb's Makefile;
          #
          # * patch tbb's build system to use the compiler wrappers (CC, CXX) for
          #   icc, gcc, clang (see coerce_to_spack());
          #
          self.coerce_to_spack("build")
  
          if spec.satisfies('%clang'):
              tbb_compiler = "clang"
          elif spec.satisfies('%intel'):
              tbb_compiler = "icc"
          else:
              tbb_compiler = "gcc"
  
          mkdirp(prefix)
          mkdirp(prefix.lib)
  
          make_opts = []
  
          # Static builds of TBB are enabled by including 'big_iron.inc' file
          # See caveats in 'big_iron.inc' for limits on using TBB statically
          # Lore states this file must be handed to make before other options
          if '+shared' not in self.spec:
              make_opts.append("extra_inc=big_iron.inc")
  
          if spec.variants['cxxstd'].value != 'default':
              make_opts.append('stdver=c++{0}'.
                               format(spec.variants['cxxstd'].value))
  
          #
          # tbb does not have a configure script or make install target
          # we simply call make, and try to put the pieces together
          #
          make_opts.append("compiler={0}".format(tbb_compiler))
          make(*make_opts)
  
          # install headers to {prefix}/include
          install_tree('include', prefix.include)
  
          # install libs to {prefix}/lib
          tbb_lib_names = ["libtbb",
                           "libtbbmalloc",
                           "libtbbmalloc_proxy"]
  
          for lib_name in tbb_lib_names:
              # install release libs
              fs = glob.glob(join_path("build", "*release", lib_name + ".*"))
              for f in fs:
                  install(f, prefix.lib)
              # install debug libs if they exist
              fs = glob.glob(join_path("build", "*debug", lib_name + "_debug.*"))
              for f in fs:
                  install(f, prefix.lib)
  
          if spec.satisfies('@2017.8,2018.1:', strict=True):
              # Generate and install the CMake Config file.
              cmake_args = ('-DTBB_ROOT={0}'.format(prefix),
                            '-DTBB_OS={0}'.format(platform.system()),
                            '-P',
                            'tbb_config_generator.cmake')
              with working_dir(join_path(self.stage.source_path, 'cmake')):
                  inspect.getmodule(self).cmake(*cmake_args)
  