[Bug c/85678] -fno-common should be default

[wilco at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85678

Wilco <wilco at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |wilco at gcc dot gnu.org

--- Comment #6 from Wilco <wilco at gcc dot gnu.org> ---
(In reply to Jonathan Wakely from comment #5)
> The other bug links to a patch to change the default:
> 
> https://gcc.gnu.org/ml/gcc-patches/2017-11/msg01549.html

Updated patch: https://gcc.gnu.org/ml/gcc-patches/2019-10/msg01847.html