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

@@ -28,7 +28,7 @@
 from spack.pkg.builtin.intel import IntelInstaller
 
 
-class Daal(IntelInstaller):
+class IntelDaal(IntelInstaller):
     """Intel Data Analytics Acceleration Library.
 
     Note: You will have to add the download file to a
@@ -44,6 +44,8 @@ class Daal(IntelInstaller):
     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")

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

@@ -28,7 +28,7 @@
 from spack.pkg.builtin.intel import IntelInstaller
 
 
-class Ipp(IntelInstaller):
+class IntelIpp(IntelInstaller):
     """Intel Integrated Performance Primitives.
 
     Note: You will have to add the download file to a
@@ -42,6 +42,8 @@ class Ipp(IntelInstaller):
     version('9.0.3.210', '0e1520dd3de7f811a6ef6ebc7aa429a3',
             url="file://%s/l_ipp_9.0.3.210.tgz" % os.getcwd())
 
+    provides('ipp')
+
     def install(self, spec, prefix):
 
         self.intel_prefix = os.path.join(prefix, "pkg")