Model referencing: get information about parent model

Hi,

When I use model referencing and build a model with rtw (using a custom target file), is there any possibility that the build process of the referenced model gets some information about the parent model? Namely, it depends on the existence of one block in the parent model whether the model should be build in a 32 bit or 64 bit dll.

So far, I tried to write a _make_rtw_hook, but the whole build process of the referenced model runs before the hook of the parent model is called, so I cannot pass information here.

Many thanks in advance!