A new perl package: perl-io-compress. (#8566)

* A new package: perl-compress-raw-zlib.

* A new package: perl-compress-raw-bzip2.

* A new perl package: perl-io-compress.

* flake8.

* Add zlib and bzip2 dependency.

var/spack/repos/builtin/packages/perl-compress-raw-bzip2/package.py

@@ -0,0 +1,37 @@
+##############################################################################
+# Copyright (c) 2013-2018, Lawrence Livermore National Security, LLC.
+# Produced at the Lawrence Livermore National Laboratory.
+#
+# This file is part of Spack.
+# Created by Todd Gamblin, tgamblin@llnl.gov, All rights reserved.
+# LLNL-CODE-647188
+#
+# For details, see https://github.com/spack/spack
+# Please also see the NOTICE and LICENSE files for our notice and the LGPL.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License (as
+# published by the Free Software Foundation) version 2.1, February 1999.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the terms and
+# conditions of the GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+##############################################################################
+from spack import *
+
+
+class PerlCompressRawBzip2(PerlPackage):
+    """A low-Level Interface to bzip2 compression library."""
+
+    homepage = "http://search.cpan.org/~pmqs/Compress-Raw-Bzip2-2.081/lib/Compress/Raw/Bzip2.pm"
+    url      = "http://search.cpan.org/CPAN/authors/id/P/PM/PMQS/Compress-Raw-Bzip2-2.081.tar.gz"
+
+    version('2.081', '25fa9c9cc4fd3250b65b91694f9eac2e')
+
+    depends_on('bzip2')
+    depends_on('perl-extutils-makemaker', type='build')