Many of the variables are common in CMake, e.g. `*_INCLUDE_DIRS`, `*_LIBRARIES`, etc. There is no `ament` specific documentation for those. Other variables are commonly not being used by users and are therefore not mentioned anywhere. In general there is not much documentation beyond the API docs (this is ticketed in [ament/ament_cmake#2](https://github.com/ament/ament_cmake/issues/2)). If there is a specific variable you would like to know more about please don't hesitate to ask. I am happy to provide feedback. --- [Visit Topic](https://discourse.ros.org/t/make-ament-work-with-another-build-system-for-cross-compilation/2382/6) or reply to this email to respond. If you do not want to receive messages from ros-users please use the unsubscribe link below. If you use the one above, you will stop all of ros-users from receiving updates. ______________________________________________________________________________ ros-users mailing list ros-users@lists.ros.org http://lists.ros.org/mailman/listinfo/ros-users Unsubscribe: