Build broken - please have a few days patience

[Martin Husemann <martin%duskware.de@localhost>]

Sorry folks, I broke the build big time - and this time it was kinda on 
purpose.

In order to systematically track down all changes needed to fix PR 49074
(but for all architectures, and future proof), I added a link time test
exercising the C++ 2011 <atomic> operations.

The list of architectures this did NOT break on first try was: amd64, ppc64
and sparc64 (guess which two I tried upfront?).

This should now be slightly better (i386 should pass as well, probably quite
a few others), but it will take a few days to track down and squash the
stranglers.

Martin