Add the gnupg package and missing dependencies. Update versions of ex… (#4281)

* Add the gnupg package and missing dependencies. Update versions of existing dependencies.

* this ended up in the wrong repo

* put versions back, remove uneeded function

* OK ;)

* autopep8

* typo on npth line

* whitespace

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

@@ -0,0 +1,50 @@
+##############################################################################
+# Copyright (c) 2013-2016, 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/llnl/spack
+# Please also see the LICENSE file 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 Gnupg(AutotoolsPackage):
+    """GnuPG is a complete and free implementation of the OpenPGP
+       standard as defined by RFC4880 """
+
+    homepage = "https://gnupg.org/index.html"
+    url = "https://gnupg.org/ftp/gcrypt/gnupg/gnupg-2.1.21.tar.bz2"
+
+    version('2.1.21', '685ebf4c3a7134ba0209c96b18b2f064')
+
+    depends_on('libgcrypt')
+    depends_on('libassuan')
+    depends_on('libksba')
+    depends_on('libgpg-error')
+    depends_on('npth')
+
+    def configure_args(self):
+        args = ['--with-npth-prefix=%s' % self.spec['npth'].prefix,
+                '--with-libgcrypt-prefix=%s' % self.spec['libgcrypt'].prefix,
+                '--with-libksba-prefixx=%s' % self.spec['libksba'].prefix,
+                '--with-libassuan-prefix=%s' % self.spec['libassuan'].prefix,
+                '--with-libpgp-error-prefix=%s' %
+                self.spec['libgpg-error'].prefix]
+        return args