[dpdk-dev] [PATCH] examples: ethtool: Link against librte_pmd_ixgbe if necessary

[Markos Chandras <mchandras@suse.de>]

The librte_ethtool library depends on librte_pmd_ixgbe if that
pmd driver is enabled so we need to link against it when we compile
the ethtool application. It fixes the following build problem:

/usr/lib64/gcc/x86_64-suse-linux/6/../../../../x86_64-suse-linux/bin/ld:
warning: librte_pmd_ixgbe.so.1, needed by /home/abuild/rpmbuild/BUILD/
dpdk-17.02/examples/ethtool/lib/x86_64-native-linuxapp-gcc/lib/
librte_ethtool.so, not found (try using -rpath or -rpath-link)
/home/abuild/rpmbuild/BUILD/dpdk-17.02/examples/ethtool/lib/
x86_64-native-linuxapp-gcc/lib/librte_ethtool.so: undefined reference to
`rte_pmd_ixgbe_set_vf_rxmode@DPDK_17.02'
collect2: error: ld returned 1 exit status

Cc: Nirmoy Das <ndas@suse.de>
Signed-off-by: Markos Chandras <mchandras@suse.de>
---
 examples/ethtool/ethtool-app/Makefile | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/examples/ethtool/ethtool-app/Makefile b/examples/ethtool/ethtool-app/Makefile
index 09c66ad19..9382ca7c3 100644
--- a/examples/ethtool/ethtool-app/Makefile
+++ b/examples/ethtool/ethtool-app/Makefile
@@ -50,5 +50,8 @@ CFLAGS += $(WERROR_FLAGS)
 LDLIBS += -L$(subst ethtool-app,lib,$(RTE_OUTPUT))/lib
 LDLIBS += -lrte_ethtool
 
+ifeq ($(CONFIG_RTE_LIBRTE_IXGBE_PMD),y)
+LDLIBS += -lrte_pmd_ixgbe
+endif
 
 include $(RTE_SDK)/mk/rte.extapp.mk
-- 
2.11.0