message: always use C++11
diff: ## ======================================================================== ##
  project(OSPRay)
  -cmake_minimum_required(VERSION 2.8)
  +cmake_minimum_required(VERSION 3.1)
  set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
  set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
  set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR})
  +set (CMAKE_CXX_STANDARD 11)
  +
  ## Find dependencies ##
  find_package(ospray REQUIRED)
  @@ -28,6 +30,8 @@ include(${OSPRAY_USE_FILE})
  include_directories(${OSPRAY_INCLUDE_DIRS})
  +ospray_configure_tasking_system()
  +
  ## Build application ##
  set(OSPRAY_DEFAULT_COMPONENT apps)
  