Only define BUILDING_NODE_EXTENSION if it is undefined.
Only define BUILDING_NODE_EXTENSION if it is undefined.

jmptrader/blpapi-node,apaprocki/blpapi-node,apaprocki/blpapi-node,bloomberg/blpapi-node,bloomberg/blpapi-node,jmptrader/blpapi-node,bloomberg/blpapi-node,apaprocki/blpapi-node,jmptrader/blpapi-node