[Bug lto/82172] Destruction of basic_string in basic_stringbuf::overflow with _GLIBCXX_USE_CXX11_ABI=0, -flto, and C++17 mode results in invalid delete

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82172

--- Comment #25 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Gubbins from comment #24)
> > > Does anyone know how I would raise this with someone who can fix it on the
> > > Darwin side? Or could it be worked around by gcc?
> > 
> > Linker should provide precise information to GCC.
> 
> FWIW, I have raised a bug report on the Apple Developer Bug Reporter
> regarding the similar behaviour of the OSX linker.

Dave, the fix for PR 86138 might also fix this case for Darwin - could you
check that please?

The fix is committed to the tip of trunk and gcc-8-branch and gcc-7-branch.