libuutil1linux 0.6.5.6-0ubuntu16 (amd64 binary) in ubuntu xenial

 This library provides a variety of glue functions for OpenZFS on Linux:
  * libspl: The Solaris Porting Layer library, which provides APIs that make it
 possible to run Solaris user code in a Linux environment with relatively
 minimal modification.
  * libavl: The Adelson-Velskii Landis balanced binary tree manipulation
 library.
  * libefi: The Extensible Firmware Interface library for GUID disk
 partitioning.
  * libshare: NFS and SMB service integration for OpenZFS.