Warning: Refusing to link: openssl Linking keg-only openssl means you may end up linking against the insecure, deprecated system OpenSSL while using the headers from Homebrew's openssl. Instead, pass the full include/library paths to your compiler e.g.: -I/usr/local/opt/openssl/include -L/usr/local/opt/openssl/lib http://blog.yukarien.com/tech/openssl-versionup/ 上記サイトでopensslをバージョンアップした時の問題解決 どうやら