firebird2.5-common 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 files common to both servers and clients for both super
 and classic flavours.
 .
 These include support scripts as well as configuration files in
 /etc/firebird/2.5.
 .
 Please refer to the firebird2.5-super or firebird2.5-classic packages for more
 information about Firebird in general.

Source package