Gauge : presents a progress bar
On the C++ side, the actual class name of wxGauge under Windows is wxGauge95. So when a Gauge is loaded from XRC, and we try to wrap the object in a ruby class by calling obj->ClassInfo()->ClassName(), it seeks for a ruby class (Wx::Gauge95) that doesn’t exist (see swig/shared/get_ruby_object.i).
To fix this, make Wx::Gauge95 an alias.