Subject: bug#22522: Commit b88e9cded7ae3756e3a2ec4a23e8df352a0239f9 breaks emacs dumping for me

From: Ken Brown <[email-masked]>
Date: Tue, 2 Feb 2016 17:32:18 -0500

On 2/2/2016 5:02 PM, Andy Moreton wrote:
> On Tue 02 Feb 2016, Ken Brown wrote:
>
>> On 2/2/2016 9:20 AM, Wolfgang Jenkner wrote:
>>> On Mon, Feb 01 2016, Ken Brown wrote:
>>>
>>>> ../../master/src/alloc.c: In function ‘lisp_align_malloc’:
>>>> ../../master/src/alloc.c:1247:7: warning: implicit declaration of
>>>> function ‘hybrid_aligned_alloc’ [-Wimplicit-function-declaration]
>>>
>>> Before Paul's 7fdc3cf, src/alloc.c used to contain a declaration for
>>> aligned_alloc(), which a preprocessor definition turned into
>>> a declaration for hybrid_aligned_alloc().  The preprocessor definition
>>> was redundant as it is contained in src/conf_post.h as well, but the
>>> declaration has to be supplied by some other include file.
>>>
>>> (For FreeBSD, stdlib.h, which alloc.c includes, supplies the
>>> declaration, guarded by #if __ISO_C_VISIBLE >= 2011 || __cplusplus >=
>>> 201103L, which is true by default, at least on FreeBSD 10).
>>
>> Cygwin's stdlib.h also has the declaration with the same guard.  But for some
>> reason, alloc.c is still not getting the declaration.  I'll have to figure out
>> what's going on.
>
> Building with V=1 shows the cygwin build uses "gcc -std=gnu99", and
> aligned_alloc() is from C11, so I would expect that the declaration in
> Cygwin's stdlib.h is not seen.

That was my first thought also, but it turns out not to be the issue. 
See my last message.

Ken