I did use the Make to build bitcoin source [https://github.com/bitcoin/bitcoin]. every thing went ok.
then I have changed one of file bitcoind.cpp , and issue the Make command again, but this time Make has tried to build all bitcoin source again.
my question is how to do Incremental build for bitcoin?
my system is ubuntu, and g++ is Ubuntu 5.4.0-6ubuntu1~16.04.6