Solved by Fitanium in post #3 
              
              
                Hi Thomas, 
Thank you very much for your experience and advice. Since that time, I have been using libtorch 1.9.0. And after searching some information on internet, I have found that if I add add_link_options(-fuse-ld=gold) in CMakeLists.txt, the warning message disappeared. So in my opinion , I gue…