[PATCH] Turn ___brk_addr into a compat symbol

[Adhemerval Zanella]

On 19/11/2020 08:34, Florian Weimer wrote:
> * Andreas Schwab:
> 
>> GCC hasn't been requiring the ___brk_addr symbol since 3.1, and before
>> that only on i386 at least since 2.95.
> 
> GCC 2.7.2.3 uses it as well on i386.
> 
> I think turning it into a compatibility symbol will prevent users from
> using these compilers to link new binaries.
> 

Is this really a wide deployed scenario? And do we really care for that
awkward combination (a 20 years old compiler using an update runtime)?