As of OpenSSL 1.1 SSL_library_init() and SSL_load_error_strings() are deprecated. There are replacement initialization functions but they do not need to be called: "As of version 1.1.0 OpenSSL will automatically allocate all resources that it needs so no explicit initialisation is required."
Wrap both calls in an OPENSSL_VERSION_NUMBER block.
Upstream pull request submitted as https://github.com/openbsm/openbsm/pull/82