Just adding this here since it’s a frequent issue: if you’re using C++ and running into a pthread_create undefined error, we have a workaround for this here:
We aren’t C++ experts, so we’d love help figuring out why this works locally (without the change to CMakeLists.txt) for most but doesn’t work on our test runners. I’m hesitant to make this change in our starter code without understanding what’s going on.