[ros-users] [Discourse.ros.org] [Next Generation ROS] ROS2 Cross compilation

[Louis Mayencourt via Discourse.ros.org]

I have done a few updates on the cross-compilation assets:
- rviz (master) can now be cross-compiled
- a generic dockerfile is used to generate an aarch64 or armhf file-system. A build argument can be specified to docker:
      - armhf: docker build --build-arg ARM_ARCH=arm32v7 ...
      - aarch64: docker build --build-arg ARM_ARCH=arm64v8 ...
- the target docker container is cleaned after been extracted





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