Hm so this implies we need to build the tests separately from FTorch? Doable but means we have two build steps.

Either that or perhaps we can use POST_BUILD. I wonder if this is relevant? https://stackoverflow.com/questions/50913377/cmake-add-custom-command-post-build-depends-option-is-ignored

My feelings are that this is not a priority, so can perhaps be put on a backburner for now - I had hoped it would be a 1-line change, but that does not seem the case. 😅

That said, don't let it stop you looking if you are interested!

I'm softening on it being a necessity to build tests as a one-shot with CMake - maybe having a separate "build tests" step wouldn't be an issue as one still has to follow a separate "run tests" step? I still think separating tests from examples (even if they use the same code) is sensible, however.