[dpdk-dev] [PATCH] net/octeontx: fix build for gcc < 4.6

Ferruh Yigit ferruh.yigit at intel.com
Wed Oct 25 11:03:03 CEST 2017


-Ofast option supported starting from gcc4.6 [1], for older versions
using "-O3 -ffast-math" instead.

[1] build error:
  CC octeontx_rxtx.o
  cc1: error: invalid option argument ‘-Ofast’

Fixes: 9e747589bd4c ("net/octeontx: add packet transmit burst function")

Signed-off-by: Ferruh Yigit <ferruh.yigit at intel.com>
---
 drivers/net/octeontx/Makefile | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/octeontx/Makefile b/drivers/net/octeontx/Makefile
index 0a8775a16..6197b66f4 100644
--- a/drivers/net/octeontx/Makefile
+++ b/drivers/net/octeontx/Makefile
@@ -59,7 +59,12 @@ SRCS-$(CONFIG_RTE_LIBRTE_OCTEONTX_PMD) += octeontx_ethdev.c
 ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
 CFLAGS_octeontx_rxtx.o += -fno-prefetch-loop-arrays
 endif
+
+ifeq ($(shell test $(GCC_VERSION) -ge 46 && echo 1), 1)
 CFLAGS_octeontx_rxtx.o += -O3 -Ofast
+else
+CFLAGS_octeontx_rxtx.o += -O3 -ffast-math
+endif
 
 LDLIBS += -lrte_eal -lrte_mbuf -lrte_mempool -lrte_ring
 LDLIBS += -lrte_ethdev -lrte_net -lrte_kvargs
-- 
2.13.6



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