Add new package: libnet (#18776)

var/spack/repos/builtin/packages/libnet/package.py

@@ -0,0 +1,22 @@
+# 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 Libnet(AutotoolsPackage):
+    """Libnet is an API to help with the construction and handling of
+    network packets. It provides a portable framework for low-level
+    network packet writing and handling """
+
+    homepage = "https://github.com/libnet/libnet"
+    url      = "https://github.com/libnet/libnet/archive/v1.2.tar.gz"
+
+    version('1.2',     sha256='b7a371a337d242c017f3471d70bea2963596bec5bd3bd0e33e8517550e2311ef')
+
+    depends_on('autoconf', type='build')
+    depends_on('automake', type='build')
+    depends_on('libtool',  type='build')
+    depends_on('m4',       type='build')