-DIRS-$(CONFIG_RTE_LIBRTE_POWER) += vm_power_manager
-DIRS-$(CONFIG_RTE_LIBRTE_CRYPTODEV) += l2fwd-crypto
-ifneq ($(CONFIG_RTE_EXEC_ENV_LINUXAPP),)
-DIRS-$(CONFIG_RTE_ARCH_X86_64) += performance-thread
+ifeq ($(CONFIG_RTE_LIBRTE_POWER), y)
+ifeq ($(shell pkg-config --atleast-version=0.9.3 libvirt; echo $$?), 0)
+DIRS-y += vm_power_manager
+else
+$(info vm_power_manager requires libvirt >= 0.9.3)