message: honor ONNX_WERROR for all platforms and all libs
diff: @@ -485,16 +485,6 @@ if(BUILD_ONNX_PYTHON)
  target_link_libraries(onnx_cpp2py_export PRIVATE ${PYTHON_LIBRARIES})
  target_compile_options(onnx_cpp2py_export
  PRIVATE /MP
  - /WX
  - /wd4800 # disable warning type' : forcing
  - # value to bool 'true' or 'false'
  - # (performance warning)
  - /wd4503 # identifier' : decorated name length
  - # exceeded, name was truncated
  - /wd4146 # unary minus operator applied to
  - # unsigned type, result still
  - # unsigned from include\google\protob
  - # uf\wire_format_lite.h
  /wd4244 # 'argument': conversion from 'google::
  # protobuf::uint64' to 'int', possible
  # loss of data
  @@ -545,16 +535,6 @@ endif()
  if(MSVC)
  target_compile_options(onnx_proto
  PRIVATE /MP
  - /WX
  - /wd4800 # disable warning type' : forcing value
  - # to bool 'true' or 'false'
  - # (performance warning)
  - /wd4503 # identifier' : decorated name length
  - # exceeded, name was truncated
  - /wd4146 # unary minus operator applied to
  - # unsigned type, result still unsigned:
  - # include\google\protobuf\wire_format_l
  - # ite.h
  /wd4244 #'argument': conversion from 'google::
  #protobuf::uint64' to 'int', possible
  # loss of data
  @@ -563,14 +543,6 @@ if(MSVC)
  ${EXTRA_FLAGS})
  target_compile_options(onnx
  PRIVATE /MP
  - /WX
  - /wd4800 # disable warning type' : forcing value
  - # to bool 'true' or 'false'
  - # (performance warning)
  - /wd4503 # identifier' : decorated name length
  - # exceeded, name was truncated
  - /wd4146 # unary minus operator applied to
  - # unsigned type, result still unsigned
  /wd4244 # 'argument': conversion from 'google::
  # protobuf::uint64' to 'int', possible
  # loss of data
  