add new package lksctp-tools (#15564)

Co-Authored-By: Massimiliano Culpo <massimiliano.culpo@gmail.com>

var/spack/repos/builtin/packages/lksctp-tools/package.py

@@ -0,0 +1,20 @@
+# 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 LksctpTools(AutotoolsPackage):
+    """A Linux SCTP helper library"""
+
+    homepage = "https://github.com/sctp/lksctp-tools"
+    url      = "https://github.com/sctp/lksctp-tools/archive/v1.0.18.tar.gz"
+
+    version('1.0.18', sha256='3e9ab5b3844a8b65fc8152633aafe85f406e6da463e53921583dfc4a443ff03a')
+
+    depends_on('autoconf', type='build')
+    depends_on('automake', type='build')
+    depends_on('libtool',  type='build')
+    depends_on('m4',       type='build')