[Pharo-project] FFI/Alien: Structures with arrrayed fields

Hello all, I am faced with something like the following: struct complex { double real; imaginary; }; struct ugly { int gratuitousSize; long importantStuff[64]; complex * moreImportantStuff[64]; }; The question is how to explain this to FFI? The closest things I have found always seem to be byte arrays, so the "third element" in the arrays of #fields is not well-revealed. Does anyone know whether it is additive or multiplicative, and/or how to use it to make sense of the above struct? Bill