Indeed - it is probably worth noting that the way dynamic libraries (or shared objects) are bound into the application runtime is platform specific, and the way that WinXX handles this is quite different from what Linux does - indeed the various "unices" aren't entirely consistent with each other either..

This has an effect on symbol visibility and the binding of common symbols generally, and there is no "simple answer" to this - if you are using SO/DLL libs, you need to understand what each platform you are targeting does.