[dpdk-dev] [PATCH v2 2/2] net/iavf: fix build error on lower version GCC

[Leyi Rong <leyi.rong@intel.com>]

Fix the build error when -march=skylake-avx512 is not supported on
lower version GCC.

Fixes: e0dcec9074c3 ("net/iavf: enable AVX512 for legacy Rx")

Signed-off-by: Leyi Rong <leyi.rong@intel.com>
---
 drivers/net/iavf/meson.build | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/iavf/meson.build b/drivers/net/iavf/meson.build
index e257f5a6e1..099b6a725d 100644
--- a/drivers/net/iavf/meson.build
+++ b/drivers/net/iavf/meson.build
@@ -46,12 +46,16 @@ if arch_subdir == 'x86'
 
 	if iavf_avx512_cpu_support == true or iavf_avx512_cc_support == true
 		cflags += ['-DCC_AVX512_SUPPORT']
+		avx512_args = [cflags, '-mavx512f', '-mavx512bw']
+		if cc.has_argument('-march=skylake-avx512')
+			avx512_args += '-march=skylake-avx512'
+		endif
 		iavf_avx512_lib = static_library('iavf_avx512_lib',
 				'iavf_rxtx_vec_avx512.c',
 				dependencies: [static_rte_ethdev,
-					static_rte_kvargs, static_rte_hash],
+				static_rte_kvargs, static_rte_hash],
 				include_directories: includes,
-				c_args: [cflags, '-mavx512f', '-mavx512bw', '-march=skylake-avx512'])
+				c_args: avx512_args)
 		objs += iavf_avx512_lib.extract_objects('iavf_rxtx_vec_avx512.c')
 	endif
 endif
-- 
2.17.1