Hi: doxygen uses it's own code parser for cross-reference lists and call graphs generation. However, it is not a compiler and may fail often as i have experienced with call graph generation. Now in the user.cfg.in file there is a field to specify XYZ_ASSISTED_PARSING= XYZ_OPTIONS= Is there any patch or thoughts as to how we can get GCC_ASSISTED_PARSING= GCC_OPTIONS= Any pointers or suggestions ? warm regards Saifi.