RFC: libiberty PATCH to disable demangling of ancient mangling schemes

[Eric Gallager]

On 12/7/18, Jason Merrill <jason@redhat.com> wrote:
> On 12/7/18 6:36 AM, Richard Biener wrote:
>> On Thu, Dec 6, 2018 at 10:22 PM Jason Merrill <jason@redhat.com> wrote:
>>>
>>> On Thu, Dec 6, 2018 at 11:14 AM Jason Merrill <jason@redhat.com> wrote:
>>>>
>>>> Looks good to me.  Independently, do you see a reason not to disable
>>>> the
>>>> old demangler entirely?
>>>
>>> Like so.  Does anyone object to this?  These mangling schemes haven't
>>> been relevant in decades.
>>
>> Why #ifdef the code?  Just rip it out?
>
> I was thinking as an intermediate measure in case some user wanted it
> for some reason, but I'd be fine with that as well.
>
> Jason
>

A compromise could be to do the #ifdef for GCC 9, see if anyone
complains, and then if no one complains, rip it out entirely for GCC
10.