[libvirt] [PATCH] build: fix building error when building without libvirtd

[Wen Congyang]

When building libvirt without libvirtd, we will receive the following error
message:

make[3]: Entering directory `/home/wency/rpmbuild/BUILD/libvirt-0.9.2/tools'
  CC     virsh-virsh.o
  CC     virsh-console.o
  GEN    virt-xml-validate
  GEN    virt-pki-validate
  CCLD   virsh
../src/.libs/libvirt.so: undefined reference to `numa_available'
../src/.libs/libvirt.so: undefined reference to `numa_max_node'
collect2: ld returned 1 exit status

The reason is that: we check numactl only when building qemu driver, and qemu
driver will not be built when bulding without libvirtd. So with_numactl's
value is check and we will not link libnuma.so.

In the other function, we call numa_available() and numa_max_node() only
when HAVE_NUMACTL is 1. We should do the same check in the function nodeGetMemoryStats().

---
 src/nodeinfo.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/src/nodeinfo.c b/src/nodeinfo.c
index 647cb1e..c6dbb84 100644
--- a/src/nodeinfo.c
+++ b/src/nodeinfo.c
@@ -685,17 +685,23 @@ int nodeGetMemoryStats(virConnectPtr conn ATTRIBUTE_UNUSED,
                 return -1;
             }
         } else {
+#if HAVE_NUMACTL
             if (numa_available() < 0) {
+#endif
                 nodeReportError(VIR_ERR_NO_SUPPORT,
                                 "%s", _("NUMA not supported on this host"));
                 return -1;
+#if HAVE_NUMACTL
             }
+#endif
 
+#if HAVE_NUMACTL
             if (cellNum > numa_max_node()) {
                 nodeReportError(VIR_ERR_INVALID_ARG, "%s",
                                 _("Invalid cell number"));
                 return -1;
             }
+#endif
 
             if (virAsprintf(&meminfo_path, "%s/node%d/meminfo",
                             NODE_SYS_PATH, cellNum) < 0) {
-- 
1.7.1