The main goal of this check is to avoid passing the -msse4.1 option to the GCC that does not support it (like arm toolchains).
Anyway, the ACL library does not compile on ARM. Signed-off-by: Jan Viktorin <viktorin at rehivetech.com> --- lib/librte_acl/Makefile | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/lib/librte_acl/Makefile b/lib/librte_acl/Makefile index 7a1cf8a..401fb8c 100644 --- a/lib/librte_acl/Makefile +++ b/lib/librte_acl/Makefile @@ -50,7 +50,11 @@ SRCS-$(CONFIG_RTE_LIBRTE_ACL) += acl_gen.c SRCS-$(CONFIG_RTE_LIBRTE_ACL) += acl_run_scalar.c SRCS-$(CONFIG_RTE_LIBRTE_ACL) += acl_run_sse.c +CC_SSE4_1_SUPPORT := $(shell $(CC) -msse4.1 -dM -E - < /dev/null >/dev/null 2>&1 && echo 1) + +ifeq ($(CC_SSE4_1_SUPPORT),1) CFLAGS_acl_run_sse.o += -msse4.1 +endif # # If the compiler supports AVX2 instructions, -- 2.6.1
