on stock android, pthread_cancel and phtread_setcancelstate doesn't exist

Change-Id: Icbe281a301004ae2bcda4821a50fb4a41088e85d
diff --git a/fuse/fuse.c b/fuse/fuse.c
index 34b11d4..588d445 100644
--- a/fuse/fuse.c
+++ b/fuse/fuse.c
@@ -4579,7 +4579,11 @@
 {
 	if (lru_enabled(f)) {
 		pthread_mutex_lock(&f->lock);
+#ifndef ANDROID
 		pthread_cancel(f->prune_thread);
+#else
+		pthread_kill(f->prune_thread, SIGUSR1);
+#endif
 		pthread_mutex_unlock(&f->lock);
 		pthread_join(f->prune_thread, NULL);
 	}