"undeclared identifier 'BIO_s_file_internal'"
During BSDCan 2018 the intention to update OpenSSL in base to 1.1.x branch was documented.
Intention is to update OpenSSL in 12-STABLE to 1.1.1 when that is released.
Poudriere log: https://keg.brnrd.eu/data/111amd64-default-openssl110/2018-08-17_12h10m13s/logs/errors/mongodb-2.6.12_5.log
I think that databases/mongodb has been removed from ports.
Port has been removed