On 8/17/23 00:26, Ilya Maximets wrote:
> This fixes the obsolescence warning for AC_TRY_RUN with autoconf 2.70+:
> 
>   $ ./boot.sh
>   configure.ac:141: warning: The macro `AC_TRY_RUN' is obsolete.
>   configure.ac:141: You should run autoupdate.
>   ./lib/autoconf/general.m4:2997: AC_TRY_RUN is expanded from...
>   lib/m4sugar/m4sh.m4:692: _AS_IF_ELSE is expanded from...
>   lib/m4sugar/m4sh.m4:699: AS_IF is expanded from...
>   ./lib/autoconf/general.m4:2249: AC_CACHE_VAL is expanded from...
>   ./lib/autoconf/general.m4:2270: AC_CACHE_CHECK is expanded from...
>   m4/ax_func_posix_memalign.m4:27: AX_FUNC_POSIX_MEMALIGN is expanded from...
>   configure.ac:141: the top level
> 
> Signed-off-by: Ilya Maximets <[email protected]>
> ---
>  m4/ax_func_posix_memalign.m4 | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/m4/ax_func_posix_memalign.m4 b/m4/ax_func_posix_memalign.m4
> index bd60adcbc..2442ceca7 100644
> --- a/m4/ax_func_posix_memalign.m4
> +++ b/m4/ax_func_posix_memalign.m4
> @@ -1,5 +1,5 @@
>  # ===========================================================================
> -#  http://www.gnu.org/software/autoconf-archive/ax_func_posix_memalign.html
> +#  https://www.gnu.org/software/autoconf-archive/ax_func_posix_memalign.html
>  # ===========================================================================
>  #
>  # SYNOPSIS
> @@ -22,12 +22,12 @@
>  #   and this notice are preserved. This file is offered as-is, without any
>  #   warranty.
>  
> -#serial 7
> +#serial 9
>  
>  AC_DEFUN([AX_FUNC_POSIX_MEMALIGN],
>  [AC_CACHE_CHECK([for working posix_memalign],
>    [ax_cv_func_posix_memalign_works],
> -  [AC_TRY_RUN([
> +  [AC_RUN_IFELSE([AC_LANG_SOURCE([[
>  #include <stdlib.h>
>  
>  int
> @@ -39,7 +39,7 @@ main ()
>     * the size word. */
>    exit (posix_memalign (&buffer, sizeof(void *), 123) != 0);
>  }
> -    ],
> +    ]])],
>      [ax_cv_func_posix_memalign_works=yes],
>      [ax_cv_func_posix_memalign_works=no],
>      [ax_cv_func_posix_memalign_works=no])])

Hi Ilya,

This looks correct but I we don't use HAVE_POSIX_MEMALIGN anywhere.
OVS libs do but OVN doesn't do that directly.

Shouldn't we just remove this all together instead?  What do you think?

Thanks,
Dumitru

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