install_package "openssl-1.1.0g" "https://www.openssl.org/source/openssl-1.1.0g.tar.gz#de4d501267da39310905cb6dc8c6121f7a2cad45a7707f76df828fe1b85073af"  mac_openssl --if has_broken_mac_openssl 
install_package "ruby-2.4.0" "https://cache.ruby-lang.org/pub/ruby/2.4/ruby-2.4.0.tar.bz2#440bbbdc49d08d3650f340dccb35986d9399177ad69a204def56e5d3954600cf" ldflags_dirs standard verify_openssl