--- old/src/os/linux/vm/osThread_linux.cpp	2015-08-12 14:09:07.000000000 +0200
+++ new/src/os/linux/vm/osThread_linux.cpp	2015-08-12 14:09:07.000000000 +0200
@@ -47,3 +47,7 @@
 void OSThread::pd_destroy() {
   delete _startThread_lock;
 }
+
+bool OSThread::is_online() {
+  return true;
+}