GNU bug report logs - #7366
incompatible implicit declaration of built-in function 'alloca'

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: "Dr. David Kirkby" <david.kirkby <at> onetel.net>
To: bug-gnu-emacs <at> gnu.org
Subject: incompatible implicit declaration of built-in function 'alloca'
Date: Wed, 10 Nov 2010 15:40:35 +0000

When building on Solaris 10 SPARC, I see several messages like this:



/rootpool2/local/kirkby/emacs-23.2/lib-src/emacsclient.c:1290:17: warning: 
incompatible implicit declaration of built-in function 'alloca'


Note the man page for Solaris says its defined in <alloca.h>



Here's part of the man page




kirkby <at> t2:64 ~$ man alloca

Standard C Library Functions                           malloc(3C)

NAME
     malloc, calloc, free, memalign, realloc,  valloc,  alloca  -
     memory allocator

SYNOPSIS
     #include <stdlib.h>

     void *malloc(size_t size);

     void *calloc(size_t nelem, size_t elsize);

     void free(void *ptr);

     void *memalign(size_t alignment, size_t size);

     void *realloc(void *ptr, size_t size);

     void *valloc(size_t size);

     #include <alloca.h>

     void *alloca(size_t size);

DESCRIPTION
     The  malloc()  and  free()  functions  provide   a   simple,
     general-purpose  memory  allocation  package.  The  malloc()
     function returns a pointer to a block of at least size bytes
     suitably  aligned for any use. If the space assigned by mal-
     loc() is overrun, the results are undefined.




Dave

Message #8 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Lawrence Mitchell <wence <at> gmx.li>
To: bug-gnu-emacs <at> gnu.org
Subject: Re: bug#7366: incompatible implicit declaration of built-in function
	'alloca'
Date: Thu, 11 Nov 2010 09:59:51 +0000

Dr. David Kirkby wrote:

> When building on Solaris 10 SPARC, I see several messages like this:

> /rootpool2/local/kirkby/emacs-23.2/lib-src/emacsclient.c:1290:17:
> warning: incompatible implicit declaration of built-in function
> alloca'

I suspect this is the same as bug#6170
(http://debbugs.gnu.org/cgi/bugreport.cgi?bug=6170) which is
fixed in the trunk release, however the fix has not propagated
back into the emacs-23 branch.

Lawrence
-- 
Lawrence Mitchell <wence <at> gmx.li>

Message #11 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Chong Yidong <cyd <at> stupidchicken.com>
To: Lawrence Mitchell <wence <at> gmx.li>
Cc: bug-gnu-emacs <at> gnu.org
Subject: Re: bug#7366: incompatible implicit declaration of built-in function
	'alloca'
Date: Sat, 13 Nov 2010 12:23:13 -0500

Lawrence Mitchell <wence <at> gmx.li> writes:

>> /rootpool2/local/kirkby/emacs-23.2/lib-src/emacsclient.c:1290:17:
>> warning: incompatible implicit declaration of built-in function
>> alloca'
>
> I suspect this is the same as bug#6170
> (http://debbugs.gnu.org/cgi/bugreport.cgi?bug=6170) which is
> fixed in the trunk release, however the fix has not propagated
> back into the emacs-23 branch.

I just backported it.  Thanks for the timely reminder.

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