struct Base {
    virtual void junk() = 0;
};

template <class T>
struct Derived : Base {

    void junk() override {
        T::junkImpl();
    }

    void otherMethod() {
    }
};


template <class T>
struct NotDerived {

    void junk() {
        T::junkImpl();
    }

    void otherMethod() {
    }
};


struct TypeWithJunk {
    void junkImpl() {
    }
};

struct TypeWithoutJunk {};


void reproduce(NotDerived<TypeWithoutJunk>* ndt, Derived<TypeWithoutJunk>* dt) {

    // works - junk is not used, not instantiated
    ndt->otherMethod();

    // fails on MSVC - junk is instantiated even if not used
    dt->otherMethod();
}