install_package "openssl-1.0.2u" "https://www.openssl.org/source/openssl-1.0.2u.tar.gz#ecd0c6ffb493dd06707d38b14bb4d8c2288bb7033735606569d8f90f89669d16" openssl --if needs_openssl:0.9.6-1.0.x
install_package "ruby-2.4.0-preview1" "https://cache.ruby-lang.org/pub/ruby/2.4/ruby-2.4.0-preview1.tar.bz2#17570f0b84215ca82252f10c167ee50bc075383c018420c6b2601ae1cade0649" warn_eol standard