wxWidgets Discussion Forum

is it enough to just include the wxwidgets license, or do i also have to include the licenses for libwxzlib, libwxpng libwxexpat etc.. if i used them?

Yes, it would be appropriate to include the others if you link to them. This is typical on Windows, but not as common on Linux or OSX since most wxWidgets builds are configured to link to the system libraries, and don't end up distributing the included libraries you mention here.