libvdk2-dev 2.4.0-5.5build1 (s390x binary) in ubuntu focal

 The Visual Development Kit (VDK) is a C++ library
 that wraps the GTK+ toolkit.
 .
 The package also includes the VDK Component Library which
 contains some useful new components not available in pure
 GTK+.
 .
 Programming in VDK is much like programming in VCL
 and Borland C++ Builder.
 .
 This package contains the header files and static libraries for
 the VDK C++ and for the VDK Component libraries.
 .
 Install this package if you wish to develop your own X programs
 using the VDK C++ and the VDK Component libraries.