Binary package “libgtkmm-2.4-dev” in ubuntu xenial

C++ wrappers for GTK+ (development files)

 Gtkmm is a C++ interface for the popular GUI library GTK+, with API version
 2.4. Gtkmm provides a convenient interface for C++ programmers to create
 graphical user interfaces with GTK+'s flexible OO framework. Highlights
 include type safe callbacks, widgets extensible using inheritance and over 180
 classes that can be freely combined to quickly create complex user interfaces.
 This package contains development files and examples, as well as a gtkmm-demo