[RFC PATCH] Optionally use -mlong-double-128 by default on {powerpc{,64},s390{,x},sparc,alpha}-linux

[Paolo Carlini]

Michael Matz wrote:

>>SONAME 7 has been in progress for some time: there will be no "bumping"
>>of the SONAME in mainline, but instead a merge of libstdcxx_so_7-branch.
>>
>>Remember, hombre? This was the plan that the SC, release manager, and
>>libstdc++ developers came up with at the last SONAME change. Seems like
>>an improvement to the old process to me.
>>    
>>
>Yeah, a SONAME bump right now would be so horrible, I don't even want to
>start thinking about this, definitely not just for this ldbl-128 feature
>;)
>  
>
Indeed...

Paolo.