$(error "Please define RTE_SDK environment variable")
endif
-# Default target, can be overridden by command line or environment
-RTE_TARGET ?= x86_64-native-linuxapp-gcc
+# Default target, detect a build directory, by looking for a path with a .config
+RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard $(RTE_SDK)/*/.config)))))
include $(RTE_SDK)/mk/rte.vars.mk
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)