First Ubuntu Xenial Xerus test rebuilds (all components, all architectures)

[Matthias Klose]

A first test rebuild of Xenial Xerus was started last year for all
architectures, all components.

Results (please also look at the superseded builds) can be found at

http://people.ubuntuwire.org/~wgrant/rebuild-ftbfs-test/test-rebuild-20151218.1-xenial-baseline-xenial.html

For arm64 and armhf the gcc-5 packages are based on the Linaro 5-2015.12
release.

Additional build failures for packages in xenial-proposed (not yet in xenial)
can be found at http://qa.ubuntuwire.com/ftbfs/

Please help fixing the build failures.

   Matthias

PS: A second test rebuild (using a GCC 5 defaulting to -fPIE -Wl-z,now) was done 
on amd64, ppc64el and s390x, in preparation to turn on these flags on these 
architectures. Found at
http://people.ubuntuwire.org/~wgrant/rebuild-ftbfs-test/test-rebuild-20151218.1-pie-z-now-xenial.html

PS: A third test rebuild (using a snapshot of GCC 6) is built in
preparation of the move to GCC 6 in 16.10. This can be found at
http://people.ubuntuwire.org/~wgrant/rebuild-ftbfs-test/test-rebuild-20151218.1-gcc6-xenial.html

The corresponding compiler packages are in the PPA
https://launchpad.net/~ubuntu-toolchain-r/+archive/ubuntu/test/

... just in case you want to make packages ready for GCC 6.