message: cmake: add the external plugins to includes
diff: @@ -94,6 +94,9 @@ add_subdirectory(plugins)
  if (DEFINED EXTERNAL_DIR AND NOT EXTERNAL_DIR STREQUAL "")
  add_subdirectory(${EXTERNAL_DIR}/plugins
  ${CMAKE_CURRENT_BINARY_DIR}/${EXTERNAL_DIR}/plugins)
  + include_directories(
  + ${EXTERNAL_DIR}
  + )
  endif()
  if(NOT IOS AND NOT ANDROID)
  