examples: detect default build directory

[dpdk.git] / examples / vm_power_manager / Makefile

diff --git a/examples/vm_power_manager/Makefile b/examples/vm_power_manager/Makefile
index 13a5205..2fdb991 100644 (file)
--- a/examples/vm_power_manager/Makefile
+++ b/examples/vm_power_manager/Makefile
@@ -9,8 +9,8 @@ ifeq ($(RTE_SDK),)
 $(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
 
@@ -31,6 +31,12 @@ CFLAGS += $(WERROR_FLAGS)
 
 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)