On Wed, 29 Jul 2015, Michael Meissner wrote:

>   #6  Add support for using different names for the 64/128-bit integer
>       conversion to IBM extended double, to allow a future version to
>       switch the default for what long double is. It is not expected that GCC
>       6.x will make this switch, but we would like to eventually use the
>       standard TF names for the library when the default change is made. If
>       this isn't clear, the following names use 'tf' in them, when they use
>       IBM extended double:

That would be for a completely separate ABI, incompatible with all 
existing objects both static and shared, since the existing ABI defines 
these names to have their existing meanings?

-- 
Joseph S. Myers
jos...@codesourcery.com

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