install_package "openssl-1.0.2u" "https://www.openssl.org/source/openssl-1.0.2u.tar.gz#ecd0c6ffb493dd06707d38b14bb4d8c2288bb7033735606569d8f90f89669d16" openssl --if needs_openssl_096_102
install_package "ruby-2.4.0-rc1" "https://cache.ruby-lang.org/pub/ruby/2.4/ruby-2.4.0-rc1.tar.bz2#3b156b20f9df0dd62cbeeb8e57e66ea872d2a5b55fabdef1889650122bcc2ea7" warn_eol standard verify_openssl