unresolved std::list - what should I be looking for?

[John E]

Is it in fact the function sigc::signal_base::connect that can't be found?

I can build the app by commenting out all references to that function, so I'm guessing that it isn't getting found for some reason (admittedly it's in a DLL but I am linking to the relevant link library). My current theory is that it isn't being exported for some reason but I've used the library before without coming across this problem. I'll keep looking....