Hi all ! Im trying to extract the configuration dependent code (#ifdef #endif) to ease code-inspection The only thing I was to locate was to preprocess with -fdirectives-only but that already is doing a lot more than just handling the conditinal code and does not really simplify code-review. Are there other options similar to -fdirectives-only that could help ? or some way to dump intermediate steps of the exapansion that could help ? ...or is anyone aware of other methods to extract the actual code used at compile time in a readable form ? may thanks in advance . thx! hofrat