[PATCH 19.11 v1 1/3] net/ixgbe: build failure with make and clang < 13

[Christian Ehrhardt]

On Mon, Dec 20, 2021 at 12:21 PM Haiyue Wang <haiyue.wang at intel.com> wrote:
>
> Check the clang version before enabling '-Wno-unused-but-set-variable',
> otherwise it will have "error: unknown warning option".

Thanks, Queued for 19.11.11 as it improves some other recently added
compiler fixes and we'd want to avoid those breaking older clang
builds.

> https://reviews.llvm.org/D100581
>
> Bugzilla ID: 913
>
> Signed-off-by: Haiyue Wang <haiyue.wang at intel.com>
> ---
>  drivers/net/ixgbe/Makefile | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/drivers/net/ixgbe/Makefile b/drivers/net/ixgbe/Makefile
> index 31a418a2c6..c730bbddb4 100644
> --- a/drivers/net/ixgbe/Makefile
> +++ b/drivers/net/ixgbe/Makefile
> @@ -29,7 +29,9 @@ else ifeq ($(CONFIG_RTE_TOOLCHAIN_CLANG),y)
>  #
>  CFLAGS_BASE_DRIVER = -Wno-unused-parameter -Wno-unused-value
>  CFLAGS_BASE_DRIVER += -Wno-strict-aliasing -Wno-format-extra-args
> +ifeq ($(shell test $(CLANG_MAJOR_VERSION) -ge 13 && echo 1), 1)
>  CFLAGS_BASE_DRIVER += -Wno-unused-but-set-variable
> +endif
>
>  else
>  #
> --
> 2.34.1
>


-- 
Christian Ehrhardt
Staff Engineer, Ubuntu Server
Canonical Ltd