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-2.5.0-preview1" "https://cache.ruby-lang.org/pub/ruby/2.5/ruby-2.5.0-preview1.tar.bz2#1158e0eac184a1d8189fae985f58c9be185d6e7074b022e66567aec798fa3446" ldflags_dirs standard verify_openssl