old_contents: # 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 *
  
  
  class Dpdk(MakefilePackage):
      """DPDK is a set of libraries and drivers for fast packet processing.
      It supports many processor architectures and both FreeBSD and Linux."""
  
      homepage = "https://github.com/DPDK/dpdk"
      url      = "https://github.com/DPDK/dpdk/archive/v19.11.tar.gz"
  
      version('20.02', sha256='29e56ea8e47e30110ecb881fa5a37125a865dd2d45b61f68e93e334caaab16b7')
      version('19.11', sha256='ce1befb20a5e5c5399b326a39cfa23314a5229c0ced2553f53b09b1ae630706b')
      version('19.08', sha256='1ceff1a6f4f8d5f6f62c1682097249227ac5225ccd9638e0af09f5411c681038')
      version('19.05', sha256='5fea95cb726e6adaa506dab330e79563ccd4dacf03f126c826aabdced605d32b')
      version('19.02', sha256='04885d32c86fff5aefcfffdb8257fed405233602dbcd22f8298be13c2e285a50')
  
      depends_on('numactl')
  
      @when('%gcc target=aarch64:')
      def patch(self):
          filter_file(
              r'^MACHINE_CFLAGS',
              '#MACHINE_CFLAGS',
              join_path('mk', 'machine', 'armv8a', 'rte.vars.mk')
          )
  
      def build(self, spec, prefix):
          make('defconfig')
          make()
  
      def install(self, spec, prefix):
          install_tree('.', prefix)
  
new_contents: # 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 *
  
  
  class Dpdk(MakefilePackage):
      """DPDK is a set of libraries and drivers for fast packet processing.
      It supports many processor architectures and both FreeBSD and Linux."""
  
      homepage = "https://github.com/DPDK/dpdk"
      url      = "https://github.com/DPDK/dpdk/archive/v19.11.tar.gz"
  
      version('20.02', sha256='29e56ea8e47e30110ecb881fa5a37125a865dd2d45b61f68e93e334caaab16b7')
      version('19.11', sha256='ce1befb20a5e5c5399b326a39cfa23314a5229c0ced2553f53b09b1ae630706b')
      version('19.08', sha256='1ceff1a6f4f8d5f6f62c1682097249227ac5225ccd9638e0af09f5411c681038')
      version('19.05', sha256='5fea95cb726e6adaa506dab330e79563ccd4dacf03f126c826aabdced605d32b')
      version('19.02', sha256='04885d32c86fff5aefcfffdb8257fed405233602dbcd22f8298be13c2e285a50')
  
      conflicts('target=aarch64:', msg='DPDK is not supported on aarch64.')
  
      depends_on('numactl')
  
      def build(self, spec, prefix):
          make('defconfig')
          make()
  
      def install(self, spec, prefix):
          install_tree('.', prefix)
  
subject: add conflicts('target=aarch64:') (#20550)