c_cxx/customop seems code can't work in linux

Hi, Recently I want to use python to train a model and use c++ to load it, I find onxxruntime lib, and I find the example of c_cxx/customop seems fit my requirements, but when I use the exmple.cc to load the model by python, I find some problems. I run it on ubuntu, and download the release package "onnxruntime-linux-x64-1.17.1.tgz ", I found there is no onnxruntime_lite_custom_op.h in the linux version lib, only windows version has this file.I just want a simple demo which can load the model which is trained by python, and use the model to predict in c++, I am not very familiar with c++, could anyone support me, thank you very much.

Start with the c_cxx/customop example and example.cc, then reproduce the issue on Ubuntu using onnxruntime-linux-x64-1.17.1.tgz. Check whether onnxruntime_lite_custom_op.h is available and whether the Python-created model can be loaded by the C++ example. Done means the example's Linux support and required package contents are clear.