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Re: [PATCH][LTO] Fix PR40902, ignore toplevel qualifiers when merging symbols
On Mon, 5 Oct 2009, Diego Novillo wrote:
> On Mon, Oct 5, 2009 at 09:02, Richard Guenther <rguenther@suse.de> wrote:
> >
> > This fixes PR40902, a case where we fail to merge symbols because
> > the prevailing definition is const while the extern declaration is not.
>
> But we should at least warn if this happens. The testcase you added
> seems to imply that we don't warn about mismatched const qualifiers.
Yes, we don't - I think we should be consistent with the linker
if it won't cause problems downstream. At least we should add
a new warning flag for this kind of stuff? (and I have to check
if dg-warning works with lto.exp obviously...)
Richard.