arm64 Foxy build failing

[emersonknapp]

This package has been bloomed into Foxy, but the arm64 build is failing

Latest build as of this reporting: http://build.ros2.org/view/Fbin_ubv8_uFv8/job/Fbin_ubv8_uFv8__cartographer__ubuntu_focal_arm64__binary/13/

It appears to fail because libceres-dev is not present on Focal on arm64. I've reported the issue with it

• On the source project libceres-dev on Ubuntu 20.04 Focal Fossa arm64 build is failing ceres-solver/ceres-solver#599
• On the ubuntu packaging https://bugs.launchpad.net/ubuntu/+source/ceres-solver/+bug/1882626

Opening the report to track that information.

[clalancette]

Yes, I have a PR open to blacklist cartographer on arm64: ros2/ros_buildfarm_config#101 . Unless Ubuntu decides to release libceres-dev for arm64, there isn't much we can do here.

[emersonknapp]

We can influence the re-release, yeah? SLAM-Toolbox depends on libceres as well, so if we don't take any action, we're pretty much screwed on SLAM for arm64.

[emersonknapp]

I'm working on hunting down the patch to fix the 1.14.x version of ceres-solver for ARM so that we can get it into the Ubuntu SRU process - I'll keep this ticket updated with any progress

[clalancette]

We got this working ages ago, thanks to the work from @emersonknapp . Closing.