C89isms in the test suite

[Jakub Jelinek]

On Mon, Nov 14, 2022 at 09:19:26AM +0100, Florian Weimer wrote:
> * Sam James:
> 
> > Would you be able to backport 6be2672e4ee41c566a9e072088cccca263bab5f7
> > and 885b6660c17fb91980b5682514ef54668e544b02 to the active <13
> > branches?
> 
> Jakub, okay to backport these two (to 12, 11, 10 I presume)?

Ok.

> commit 6be2672e4ee41c566a9e072088cccca263bab5f7
> Author: Florian Weimer <fweimer@redhat.com>
> Date:   Tue Oct 18 16:58:48 2022 +0200
> 
>     libsanitizer: Avoid implicit function declaration in configure test
>     
>     libsanitizer/
>     
>             * configure.ac (sanitizer_supported): Include <unistd.h> for
>             syscall prototype.
>             * configure: Regenerate.
> 
> commit 885b6660c17fb91980b5682514ef54668e544b02
> Author: Florian Weimer <fweimer@redhat.com>
> Date:   Tue Oct 18 16:58:48 2022 +0200
> 
>     libiberty: Fix C89-isms in configure tests
>     
>     libiberty/
>     
>             * acinclude.m4 (ac_cv_func_strncmp_works): Add missing
>             int return type and parameter list to the definition of main.
>             Include <stdlib.h> and <string.h> for prototypes.
>             (ac_cv_c_stack_direction): Add missing
>             int return type and parameter list to the definitions of
>             main, find_stack_direction.  Include <stdlib.h> for exit
>             prototype.
>             * configure: Regenerate.

	Jakub