Canonical has announced that it’s now possible to cross-compile with CMake from SDK Apps to Unity8 and Mir.
The ultimate goal of Canonical is the convergence of all its platforms, but this is a difficult task when you have to compile applications for each system in part.
“As of latest cmake upload into trusty, it is now trivial to cross-compile CMake based projects,” said Canonical’s Dimitri John Ledkov on the official mailing list.
This method has been successfully tested on the following packages: Mir, Unity8, ubuntu-system-settings, ubuntu-settings-components, unity-notifications, unity-scope-onlinemusic, uhub, uchardet, and more.
One time setup: mk-sbuild --target armhf trusty
Building a package: sbuild -A -d trusty --host armhf package*.dsc
Since this is built into CMake, one can use cmake directly: dpkg-architecture -aarmhf cmake ../; make
More details about this new development can be found in the official announcement.