message: mark PROTOBUF_INCLUDE_DIRS as BUILD_INTERFACE
diff: @@ -276,7 +276,7 @@ add_library(onnx_proto ${ONNX_PROTO_SRCS} ${ONNX_PROTO_HDRS})
  target_include_directories(onnx_proto PUBLIC
  $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>
  $<INSTALL_INTERFACE:include>
  - ${PROTOBUF_INCLUDE_DIRS})
  + $<BUILD_INTERFACE:${PROTOBUF_INCLUDE_DIRS}>)
  if (MSVC)
  if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
  @@ -422,7 +422,7 @@ if(ONNX_BUILD_BENCHMARKS)
  $<BUILD_INTERFACE:${ONNX_ROOT}>
  $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>
  $<INSTALL_INTERFACE:include>
  - ${PROTOBUF_INCLUDE_DIRS})
  + $<BUILD_INTERFACE:${PROTOBUF_INCLUDE_DIRS}>)
  target_link_libraries(protobuf-bench onnx_proto benchmark)
  endif()
  