install_package "openssl-1.0.2n" "https://www.openssl.org/source/openssl-1.0.2n.tar.gz#370babb75f278c39e0c50e8c4e7493bc0f18db6867478341a832a982fd15a8fe" mac_openssl --if has_broken_mac_openssl
install_package "ruby-2.4.0-rc1" "https://cache.ruby-lang.org/pub/ruby/2.4/ruby-2.4.0-rc1.tar.bz2#3b156b20f9df0dd62cbeeb8e57e66ea872d2a5b55fabdef1889650122bcc2ea7" ldflags_dirs standard verify_openssl