libib-util 2.5.4.26856.ds4-1build1 (s390x binary) in ubuntu yakkety

 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.
 .
 libib_util contains utility functions used by User-Defined Functions (UDF) for
 memory management etc.