[PATCH v2] Let signbit use the builtin in C++ mode with gcc < 6.x (bug 22146)

[Joseph Myers]

On Tue, 17 Oct 2017, Gabriel F. T. Gomes wrote:

> On Mon, 16 Oct 2017, Joseph Myers wrote:
> 
> >This patch version is OK (with ChangeLog syntax fixed - missing "* " at 
> >the start of the ChangeLog entry and missing blank line before the next 
> >entry).
> 
> Just to confirm, this change does not require copyright assignment from
> Romain, right?  (I don't know if Romain has it).

This change is small enough that it does not require copyright assignment.

-- 
Joseph S. Myers
joseph@codesourcery.com