libxfont1-dbg 1:1.5.1-1 (s390x binary) in ubuntu xenial

 libXfont provides various services for X servers, most notably font
 selection and rasterisation (through external libraries).
 .
 This package contains the debug versions of the library found in libxfont1.
 Non-developers likely have little use for this package.
 .
 More information about X.Org can be found at:
 <URL:http://www.X.org>
 .
 This module can be found at
 git://anongit.freedesktop.org/git/xorg/lib/libXfont