Recent libstdc++ regression on i686-linux: abi/cxx_runtime_only_linkage.cc

[Paolo Carlini]

Paolo Carlini wrote:
> Ok, then, we declare here, that, for gcc4.4.0 this C++0x feature is 
> available only for targets unconditionally implementing the atomic 
> builtins. I'll take care of the configury bits.
And even this, given the current structure of the patch, we don't want 
to do, because there are too many changes scattered around in the 
libsupc++ code.

I'm going to revert again the whole thing and wait for a different, 
safe, approach, sorry.

Paolo.