wget https://dl.bintray.com/boostorg/release/1.66.0/source/boost_1_66_0.tar.gz
./bootstrap.sh
sudo ./b2 install

/usr/local/include/boost

g++ condition.cpp -lboost_thread -lboost_system
g++ condition.cpp -I /path/boost_1_66_0 -L/path/boost_1_66_0/stage/lib/ -lboost_thread -lboost_system