install_package "openssl-1.1.0i" "https://www.openssl.org/source/openssl-1.1.0i.tar.gz#ebbfc844a8c8cc0ea5dc10b86c9ce97f401837f3fa08c17b2cdadc118253cf99" mac_openssl --if has_broken_mac_openssl
install_package "ruby-2.6.0-preview1" "https://cache.ruby-lang.org/pub/ruby/2.6/ruby-2.6.0-preview1.tar.bz2#8bd6c373df6ee009441270a8b4f86413d101b8f88e8051c55ef62abffadce462" ldflags_dirs standard verify_openssl