Set default providers for all virtual dependencies (#3634)

* Set default providers for everything

* Add default OpenFOAM provider

var/spack/repos/builtin/packages/intel-daal/package.py

@@ -0,0 +1,56 @@
+##############################################################################
+# 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 *
+import os
+
+from spack.pkg.builtin.intel import IntelInstaller
+
+
+class IntelDaal(IntelInstaller):
+    """Intel Data Analytics Acceleration Library.
+
+    Note: You will have to add the download file to a
+    mirror so that Spack can find it. For instructions on how to set up a
+    mirror, see http://spack.readthedocs.io/en/latest/mirrors.html"""
+
+    homepage = "https://software.intel.com/en-us/daal"
+
+    version('2017.0.098', 'b4eb234de12beff4a5cba4b81ea60673',
+            url="file://%s/l_daal_2017.0.098.tgz" % os.getcwd())
+    version('2016.2.181', 'aad2aa70e5599ebfe6f85b29d8719d46',
+            url="file://%s/l_daal_2016.2.181.tgz" % os.getcwd())
+    version('2016.3.210', 'ad747c0dd97dace4cad03cf2266cad28',
+            url="file://%s/l_daal_2016.3.210.tgz" % os.getcwd())
+
+    provides('daal')
+
+    def install(self, spec, prefix):
+
+        self.intel_prefix = os.path.join(prefix, "pkg")
+        IntelInstaller.install(self, spec, prefix)
+
+        daal_dir = os.path.join(self.intel_prefix, "daal")
+        for f in os.listdir(daal_dir):
+            os.symlink(os.path.join(daal_dir, f), os.path.join(self.prefix, f))