ComplexLab with Eclipse
From TUDOS-Wiki
If you want to use Eclipse to work on the ComplexLab, you need to tell Eclipse where the include files are located and provide them in the correct order.
To simplify that task, you can import this project-settings using File -> Import -> C/C++ Project Settings. Afterwards you need to rebuild the index at <Your project> -> Index -> Rebuild. Note that this settings are specific for the ComplexLab and the x86 architecture.