To properly enable hdf5 inside moab we need to set more flags.

Projects/moab.cmake

@@ -20,6 +20,7 @@ add_external_project(moab
     -DMOAB_USE_CGNS:BOOL=OFF
     -DMOAB_USE_MPI:BOOL=OFF
     -DMOAB_USE_HDF:BOOL=ON
+    -DENABLE_HDF5:BOOL=ON #also required to get hdf5 support enabled
     -DMOAB_USE_NETCDF:BOOL=ON
     -DMOAB_ENABLE_TESTING:BOOL=ON #build can't handle this being disabled
     ${cgm_find_flags}