I cloned the eosio.contracts folder from github and made some changes in some of the contracts. Now I would like to compile them and test them, but when I try to compile them with eosio.cdt I get errors like
eosio.cdt/1.6.1/bin/wasm-ld: error: /tmp/eosio.system.cpp.o: undefined symbol: eosiosystem::system_contract::withdraw(...) etc.
how do I compile the contracts in eosio.contracts so I can use them when I build/install eos etc. ?