message: Switch to OpenImageIO cmake target spec rather than defines.
diff: @@ -110,7 +110,7 @@ target_link_libraries(ospray_sg
  PUBLIC
  ospcommon::ospcommon
  ospray::ospray
  - ${OPENIMAGEIO_LIBRARIES}
  + OpenImageIO::OpenImageIO
  PRIVATE
  stb_image
  tiny_obj_loader
  @@ -130,7 +130,6 @@ target_include_directories(ospray_sg
  ## Setup additional compile config for optional dependencies ##
  if(OSPSG_OPENIMAGEIO AND OpenImageIO_FOUND)
  - target_include_directories(ospray_sg PUBLIC ${OPENIMAGEIO_INCLUDES})
  target_compile_definitions(ospray_sg PRIVATE -DUSE_OPENIMAGEIO)
  endif()
  