On 09/10/2025 10:21, Ilya Maximets wrote:
> When building using an older compiler that doesn't support avx512,
> we are adding '-mno-avx512f' into the command line, which results
> with a build failure:
>
> gcc: error: unrecognized command line option '-mno-avx512f'
>
> This is a case, for example, while trying to build OVS with GCC 4.8.
>
> Fix that by avoiding binutils check when compiler doesn't understand
> -mavx512f.
>
> Later in the call chain there is also an explicit check for -mavx512f
> support, but it will just use the cached result, so it's not a problem.
>
> Fixes: 930f135f5ddc ("configure: explicitly disable avx512 if bintuils check
> fails")
> Signed-off-by: Ilya Maximets <[email protected]>
> ---
> m4/openvswitch.m4 | 7 +++++--
> 1 file changed, 5 insertions(+), 2 deletions(-)
Acked-by: Kevin Traynor <[email protected]>
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