I did try compilation from linux - and got a different error, seemed more understandable but not yet looked into it deeply.
I’ve been working more with the regular python version of pytorch + ue4 for now: https://gyazo.com/5adf2471d03be02aefe4a5a1ea4d5a3e 28
Still intending to revisit compiling libtorch with UE4, but not sure when.
Also considering other options - like a lightweight inference system - similar to barracuda