libfbclient2 binary package in Ubuntu Xenial s390x

 Firebird is a relational database offering many ANSI SQL-99 features that
 runs on Linux, Windows, and a variety of Unix platforms. Firebird offers
 excellent concurrency, high performance, and powerful language support
 for stored procedures and triggers. It has been used on production systems
 under a variety of names since 1981.
 .
 This package contains the client library required to connect to Firebird. It
 works with either "super-server" or "classic" variants, as well as with
 commercial InterBase servers.
 .
 It uses TCP to connect to the server and is tread-safe.
 .
 For direct (non-TCP) database access, see libfbembed2.5.

Source package