Security of cars implies that developement specific features are fully removed.

So it is needed to link developement specific features to some explicit tag that can be easyly removed. A such tag should be available in at least 3 strategic places:

1. within yocto to conditionally add behaviors in recipes using conditionals (see OVERRIDES)
2. within yocto recipes to tune buid (see DISTRO_FEATURES)
3. within C/C++ source files to conditionnally activate part of code specific to developement.