tbb: hide from non-Intel architectures

CMakeLists.txt

@@ -43,7 +43,6 @@ function (superbuild_find_projects var)
     boost
     bzip2
     cuda
-    embree
     freetype
     gdal
     hdf5
@@ -56,11 +55,7 @@ function (superbuild_find_projects var)
     netcdf
     nlohmannjson
     numpy
-    openimagedenoise
     openpmd
-    openvkl
-    ospray
-    ospraymodulempi
     paraviewweb
     paraviewwebglance
     paraviewweblite
@@ -93,7 +88,6 @@ function (superbuild_find_projects var)
     pythonzopeinterface
     pytz
     qt5
-    rkcommon
     silo
     szip
     visitbridge
@@ -104,14 +98,27 @@ function (superbuild_find_projects var)
     zfp
     zlib)
 
-  # These projects only support x86_64 processors.
+  # These projects only support Intel processors.
+  set(tbb_supported OFF)
   if (CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64" OR
       CMAKE_SYSTEM_PROCESSOR STREQUAL "AMD64")
+    set(tbb_supported ON)
     # These are publicly available, but are behind logins or license
     # acceptances. Rehosted internally at Kitware for build machines.
     list(APPEND projects
-      tbb)
+      tbb) # x86_64-only
+
+    # TBB-using projects
+    list(APPEND projects
+      embree
+      openimagedenoise
+      openvkl
+      ospray
+      ospraymodulempi
+      rkcommon)
   endif ()
+  set_property(GLOBAL PROPERTY
+    superbuild_tbb_supported "${tbb_supported}")
 
   if (UNIX)
     list(APPEND projects

projects/paraview.cmake

@@ -119,6 +119,14 @@ else ()
   set(paraview_build_shared_libs "${BUILD_SHARED_LIBS_paraview}")
 endif ()
 
+get_property(paraview_tbb_supported GLOBAL
+  PROPERTY superbuild_tbb_supported)
+set(paraview_tbb_dependencies)
+if (paraview_tbb_supported)
+  list(APPEND paraview_tbb_dependencies
+    tbb ospray)
+endif ()
+
 superbuild_add_project(paraview
   DEBUGGABLE
   DEFAULT_ON
@@ -126,13 +134,14 @@ superbuild_add_project(paraview
   DEPENDS_OPTIONAL
     adios2 cuda boost fortran gdal hdf5 matplotlib mpi numpy png protobuf
     python python3 qt5 visitbridge zlib silo las lookingglass fides
-    xdmf3 ospray vrpn vtkm tbb netcdf
+    xdmf3 vrpn vtkm netcdf
     openpmd
     nlohmannjson
     paraviewgettingstartedguide
     paraviewtutorialdata paraviewweb
     ${paraview_all_plugins}
     ${paraviews_platform_dependencies}
+    ${paraview_tbb_dependencies}
     ${PARAVIEW_EXTERNAL_PROJECTS}
 
   CMAKE_ARGS