net/mlx5: use pkg-config to handle SUSE libmnl

SUSE decided to install the libmnl include file in a non-standard
place: /usr/include/libmnl/libmnl/libmnl.h

This was probably a mistake by the SUSE package maintainer,
but hard to get fixed. Workaround the problem by pkg-config to find
the necessary include directive for libmnl.

Fixes: 20b71e92ef8e ("net/mlx5: lay groundwork for switch offloads")
Cc: stable@dpdk.org
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Yongseok Koh <yskoh@mellanox.com>
Acked-by: Luca Boccassi <bluca@debian.org>

diff --git a/drivers/net/mlx5/Makefile b/drivers/net/mlx5/Makefile
index fecb57c..0beb139 100644 (file)
--- a/drivers/net/mlx5/Makefile
+++ b/drivers/net/mlx5/Makefile
@@ -51,6 +51,7 @@ CFLAGS += -D_DEFAULT_SOURCE
 CFLAGS += -D_XOPEN_SOURCE=600
 CFLAGS += $(WERROR_FLAGS)
 CFLAGS += -Wno-strict-prototypes
+CFLAGS += $(shell pkg-config --cflags libmnl)
 ifeq ($(CONFIG_RTE_LIBRTE_MLX5_DLOPEN_DEPS),y)
 CFLAGS += -DMLX5_GLUE='"$(LIB_GLUE)"'
 CFLAGS += -DMLX5_GLUE_VERSION='"$(LIB_GLUE_VERSION)"'
@@ -59,7 +60,7 @@ LDLIBS += -ldl
 else
 LDLIBS += -libverbs -lmlx5
 endif
-LDLIBS += -lmnl
+LDLIBS += $(shell pkg-config --libs libmnl)
 LDLIBS += -lrte_eal -lrte_mbuf -lrte_mempool -lrte_ring
 LDLIBS += -lrte_ethdev -lrte_net -lrte_kvargs
 LDLIBS += -lrte_bus_pci