libjbig-dev 2.1-3.1build1 (s390x binary) in ubuntu focal

 JBIG-KIT provides a portable library of compression and decompression functions
 with a documented interface that you can include very easily into your image or
 document processing software.
 .
 This package contains the headers for the library.
 .
 Please note: There is no statically linked library in this package, and what
 was previously two libraries with a single common file has been merged into
 one library (libjbig).