[ Adrian Bunk ]
* Fix ppc64 and powerpc FTBFS with ppc-constexpr.patch
* debian/rules: Reduce debug info on alpha and sh4
* debian/rules: drop obsolete libatomic workaround
[ Maximiliano Curia ]
* debian/rules: Track per-worker and total build memory, tune
guess-concurrency for 32/64-bit architectures
* d/README.source: document use of guess-concurrency and
d/memory-tracker.py