GNU bug report logs - #23760
25.0.95; emacs 25.0.95 doesn't build with glibc-2.23.90

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From: Florian Weimer <fweimer <at> redhat.com>
To: Jan Synacek <jsynacek <at> redhat.com>, 23760 <at> debbugs.gnu.org
Cc: Glenn Morris <rgm <at> gnu.org>
Subject: bug#23760: 25.0.95; emacs 25.0.95 doesn't build with glibc-2.23.90
Date: Tue, 14 Jun 2016 08:17:22 +0200

On 06/14/2016 08:09 AM, Jan Synacek wrote:
> On Mon, Jun 13, 2016 at 5:58 PM, Glenn Morris <rgm <at> gnu.org> wrote:
>> Jan Synáček wrote:
>>
>>> Emacs doesn't build with the latest glibc (glibc-2.23-90):
>>>
>>>   CC       gmalloc.o
>>> ../../src/gmalloc.c:273:15: error: attempt to use poisoned "__malloc_initialize_hook"
>>
>> I guess this might be fixed already?
>>
>> https://sourceware.org/ml/libc-alpha/2016-06/msg00500.html
>> "Revert symbol poisoning of  __malloc_initialize_hook."
>
> It was my understanding that this needed to be fixed in both glibc and Emacs.

Correct, Emacs should not use symbols in the implementation namespace.

Names such as __malloc_initialize_hook (with two leading underscores) 
could be reserved by other implementations as well, not just glibc.

Thanks,
Florian

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