Commenting in rendering CMakeLists.

vtkm/rendering/CMakeLists.txt

@@ -166,12 +166,17 @@ vtkm_library(
   WRAP_FOR_CUDA ${device_sources}
   )
 
+# EGL Libs are added here to ensure propper linking when statically compiling.
+# This is safe to do even when not using EGL as the values will then be empty. 
 target_link_libraries(vtkm_rendering
                       PUBLIC vtkm_cont
                       PRIVATE ${VTKm_OPENGL_LIBRARIES}
                               ${VTKm_BACKEND_LIBRARIES}
                               ${EGL_LIBRARIES}
                       )
+
+# EGL Dirs are added here to ensure propper linking when statically compiling.
+# This is safe to do even when not using EGL as the values will then be empty. 
 target_include_directories(vtkm_rendering
                           PRIVATE ${VTKm_OPENGL_INCLUDE_DIRS}
                                   ${VTKm_BACKEND_INCLUDE_DIRS}