How do I suppress C++ vtable generation for pure virtual classes using G++?

Supressing C++ vtable generation can be done in MSVC using the __declspec(novtable) attribute. However, it seems that there is no equivalent attribute for the GNU C++ compiler. The fact is that leaving the vtables for pure virtual classes unnecessarily links in __cxa_abort() and many others, and I want to avoid this happening because I'm programming for an embedded system. So, what should I do?

struct ISomeInterface
{
    virtual void Func() = 0;
};

class CSomeClass : public ISomeInterface
{
    virtual void Func();
}

void CSomeClass::Func()
{
    //...
}