wxWidgets Cross-platform C++ GUI toolkit (GTK 3 runtime)

 wxWidgets (formerly known as wxWindows) is a class library for C++ providing
 GUI components and other facilities on several popular platforms (and some
 unpopular ones as well).
 .
 This package provides the shared libraries needed to run programs linked
 against wxWidgets. To use the (optional) glcanvas library you will need
 to have Mesa or OpenGL installed.