get rid of STANDALONE parameter; by default it should be standalone (not ns3)!
diff --git a/sync-demo.pro b/sync-demo.pro
index 402fee2..4ff91a7 100644
--- a/sync-demo.pro
+++ b/sync-demo.pro
@@ -12,9 +12,9 @@
QMAKE_CXXFLAGS *= -g
QMAKE_CFLAGS *= -g
-QMAKE_LIBDIR *= /opt/local/lib /usr/local/lib /usr/lib ../../../third_party/OGDF/_release
-INCLUDEPATH *= /opt/local/include /usr/local/include ../../../third_party/OGDF
-LIBS *= -lccn -lssl -lcrypto -lpthread -lOGDF -lprotobuf
+QMAKE_LIBDIR *= /opt/local/lib /usr/local/lib /usr/lib ../../../third_party/OGDF/_release ../build
+INCLUDEPATH *= /opt/local/include /usr/local/include ../../../third_party/OGDF ../include
+LIBS *= -lccn -lssl -lcrypto -lpthread -lOGDF -lprotobuf -lsync
CONFIG += console
PROTOS = chatbuf.proto