Huw Davies (@huw) commented about dlls/rpcrt4/rpcrt4.spec:
@ stdcall NdrSimpleStructUnmarshall(ptr ptr ptr long) @ stdcall NdrSimpleTypeMarshall(ptr ptr long) @ stdcall NdrSimpleTypeUnmarshall(ptr ptr long) -@ stdcall NdrStubCall2(ptr ptr ptr ptr) @ stdcall NdrStubCall(ptr ptr ptr ptr) +@ stdcall NdrStubCall2(ptr ptr ptr ptr) +@ stdcall -arch=win64 NdrStubCall3(ptr ptr ptr ptr) NdrStubCall2
I think we'd want a separate implementation of `NdrStubCall3()` that includes a `FIXME` and calls `NdrStubCall2()`.