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Ok, so I figured it out. Apparently the libtorch binaries installed by pip are compiled pre GCC 5.0 and so have ABI = 0 which messes with the linking of other C++ libraries. The cxx11 ABI (ABI = 1) version of libtorch downloadable from here https://pytorch.org/ fixed the problem. I am not sure exactly why the python binaries are still Pre-cxx11 ABI for X86 since on the Jetson Nano the ones provided by Nvidia are cxx11 ABI and hence worked fine and led partly to all this confusion.