[dpdk-dev] [PATCH] examples/vm_power_manager: fix build with libvirt version < 0.9.3

[Marvin Liu <yong.liu@intel.com>]

vm_power_manager utilize libvirt API virDomainGetVcpuPinInfo for
retrieve domU vcpu information. This API implemented from version 0.9.3.
Suse11 SP3 32bit default libvirt version is 0.8.8, so there'll be build
error. Add judgement in sample Makefile to skip unsupport environment.

examples/vm_power_manager/channel_manager.c: In function
‘update_pcpus_mask’:
channel_manager.c:117:3: error: implicit declaration of function
‘virDomainGetVcpuPinInfo’

Fixes: 2e099bc5d104 ("fix split of compiler and linker options")

Signed-off-by: Marvin Liu <yong.liu@intel.com>

diff --git a/examples/vm_power_manager/Makefile b/examples/vm_power_manager/Makefile
index 113dbc4..49a6b9b 100644
--- a/examples/vm_power_manager/Makefile
+++ b/examples/vm_power_manager/Makefile
@@ -33,9 +33,19 @@ ifeq ($(RTE_SDK),)
 $(error "Please define RTE_SDK environment variable")
 endif
 
+LIBVIRT_COMMON = libvirt-common.h
+LIBVIRT_HEADER = libvirt.h
+INCLUDE_PATH = /usr/include/libvirt/
+
+HEADER_FILE = $(shell if [ -f $(INCLUDE_PATH)$(LIBVIRT_COMMON) ]; then echo $(LIBVIRT_COMMON);else echo $(LIBVIRT_HEADER); fi;)
+LIBVIRT_INCLUDE = $(INCLUDE_PATH)$(HEADER_FILE)
+
+LIBVIR_VER = $(shell gawk '/LIBVIR_VERSION_NUMBER .*/{print $$3}' $(LIBVIRT_INCLUDE))
+
 # Default target, can be overridden by command line or environment
 RTE_TARGET ?= x86_64-native-linuxapp-gcc
 
+ifeq ($(shell test $(LIBVIR_VER) -ge 00009003 && echo 1), 1)
 include $(RTE_SDK)/mk/rte.vars.mk
 
 # binary name
@@ -57,3 +67,10 @@ CFLAGS_main.o += -Wno-return-type
 endif
 
 include $(RTE_SDK)/mk/rte.extapp.mk
+
+else
+.PHONY: all clean
+all:
+$(warning "vm_power_manager required libvirt version >= 0.9.3, please update libvirt-devel first")
+clean:
+endif
-- 
1.9.3