on branch version3:
/home/tim/src/experiments/libbitcoin-install//include/boost/multiprecision/cpp_int.hpp:548:56: error: right operand of shift expression '(1 << 63)' is >= than the precision of the left operand [-fpermissive]
In file included from ./include/bitcoin/bitcoin/machine/operation.hpp:159,
from ./include/bitcoin/bitcoin/chain/script.hpp:31,
from ./include/bitcoin/bitcoin/chain/output.hpp:28,
from ./include/bitcoin/bitcoin/chain/output_point.hpp:25,
from src/chain/output_point.cpp:19: