build: fix build on cygwin

On cygwin:

  CC        libvirt_util_la-cgroup.lo
util/cgroup.c: In function 'virCgroupKillRecursiveInternal':
util/cgroup.c:1458: warning: implicit declaration of function 'virCgroupNew' [-Wimplicit-function-declaration]

* src/util/cgroup.c (virCgroupKill): Don't build on platforms
where virCgroupNew is unsupported.

diff --git a/src/util/cgroup.c b/src/util/cgroup.c
index c5b8cdd96aecce96c6594e37b4c74201abf43262..8551acda0d9948a88bb59c863e77e1d41500d53c 100644 (file)
--- a/src/util/cgroup.c
+++ b/src/util/cgroup.c
@@ -1308,7 +1308,7 @@ int virCgroupGetFreezerState(virCgroupPtr group, char **state)
 }
 
 
-#ifdef HAVE_KILL
+#if defined HAVE_KILL && defined HAVE_MNTENT_H && defined HAVE_GETMNTENT_R
 static int virCgroupKillInternal(virCgroupPtr group, int signum, virHashTablePtr pids)
 {
     int rc;
@@ -1523,7 +1523,7 @@ int virCgroupKillPainfully(virCgroupPtr group)
     return rc;
 }
 
-#else /* HAVE_KILL */
+#else /* !(HAVE_KILL, HAVE_MNTENT_H, HAVE_GETMNTENT_R) */
 int virCgroupKill(virCgroupPtr group ATTRIBUTE_UNUSED,
                   int signum ATTRIBUTE_UNUSED)
 {
@@ -1539,4 +1539,4 @@ int virCgroupKillPainfully(virCgroupPtr group ATTRIBUTE_UNUSED)
 {
     return -ENOSYS;
 }
-#endif /* HAVE_KILL */
+#endif /* HAVE_KILL, HAVE_MNTENT_H, HAVE_GETMNTENT_R */