How does torque do #includes?

I mean if you look at the torque #includes they all use the engine dir as the root. let me explain:

For the master server I need to compile it using some of torque's headers and files (namely the bitStream stuff) so i copied all of the dirs in torque/engine to my main directory where my other code is. I #include "core/bitStream.h" and I get errors that it can't find platform/platform.h, core/stream.h, and math/mPoint.h. I think it's looking for these files in core/platform/platform.h etc.. which is why it isn't finding them. So how does torque use torque/engine as the #include root? (that makes sense right?)

--KallDrexx