[Bug libstdc++/89402] [9 Regression] warning: ‘void _ZNKSt4hashIeEclEe()’ specifies less restrictive attribute than its target

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89402

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #1)
> Created attachment 45766 [details]
> gcc9-pr89402.patch
> 
> Untested fix.

This patch is OK for trunk if it passes tests.