Add new package: xdelta (#18827)

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

@@ -0,0 +1,36 @@
+# 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 Xdelta(AutotoolsPackage):
+    """Xdelta version 3 is a C library and command-line tool for delta
+    compression using VCDIFF/RFC 3284 streams."""
+
+    homepage = "http://xdelta.org/"
+    url      = "https://github.com/jmacd/xdelta/archive/v3.1.0.tar.gz"
+
+    version('3.1.0',  sha256='7515cf5378fca287a57f4e2fee1094aabc79569cfe60d91e06021a8fd7bae29d')
+    version('3.0.11', sha256='28278a4d73127f3d2b00bbde179f8ee1f289ccd3f7f2ac7cd837f6580f90a7b7')
+    version('3.0.10', sha256='a3f9c177ec2b91e6d8ec82ee7f0bcbbb2d18fed7d743d7577a990c01235e657d')
+
+    depends_on('autoconf', type='build')
+    depends_on('automake', type='build')
+    depends_on('libtool',  type='build')
+    depends_on('m4',       type='build')
+    depends_on('go')
+
+    build_directory = 'xdelta3'
+    configure_directory = 'xdelta3'
+
+    def autoreconf(self, spec, prefix):
+        with working_dir(self.build_directory):
+            bash = which('bash')
+            bash('-c', 'aclocal && autoreconf --install \
+                    && libtoolize \
+                    && autoconf \
+                    && automake --add-missing \
+                    && automake')