LDLIBS += -lvirt
+JANSSON := $(shell pkg-config --exists jansson; echo $$?)
+ifeq ($(JANSSON), 0)
+LDLIBS += $(shell pkg-config --libs jansson)
+CFLAGS += -DUSE_JANSSON
+endif
+
ifeq ($(CONFIG_RTE_BUILD_SHARED_LIB),y)
ifeq ($(CONFIG_RTE_LIBRTE_IXGBE_PMD),y)