libabigail: new package (#22092)

* adding package for libabigail, which we likely will need to use it for an analysis!
* includes variant for documentation (doxygen and pysphinx are associated dependencies)

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

@@ -0,0 +1,25 @@
+# Copyright 2013-2021 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 Libabigail(AutotoolsPackage):
+    """The ABI Generic Analysis and Instrumentation Library"""
+
+    homepage = "https://sourceware.org/libabigail"
+    url      = "https://mirrors.kernel.org/sourceware/libabigail/libabigail-1.8.tar.gz"
+
+    version('1.8', sha256='1cbf260b894ccafc61b2673ba30c020c3f67dbba9dfa88dca3935dff661d665c')
+
+    variant('docs', default=False, description='build documentation')
+
+    depends_on('elfutils', type=('build', 'link'))
+    depends_on('libdwarf')
+    depends_on('libxml2')
+
+    # Documentation dependencies
+    depends_on('doxygen', type="build", when="+docs")
+    depends_on('py-sphinx', type='build', when="+docs")