There are other ways to address this issue. You can do what Swift does and call into libclang so that you can pull out the structure definitions, for instance.
Furthermore, if your frontend doesn't know about structure layout then you forgo some important systems language features. For example, you can't implement sizeof as a compile time constant.
Furthermore, if your frontend doesn't know about structure layout then you forgo some important systems language features. For example, you can't implement sizeof as a compile time constant.