I just installed Code::Blocks and wxSmith from the repository. I placed a couple of buttons on a form and tried to run it and got the following error:

firstApp.h|13|fatal error: wx/app.h: No such file or directory|
||=== Build finished: 1 errors, 0 warnings ===|

I know why I'm getting the error but have no idea what more I need to d/l to fix it. Anyone?

You need wxwidgets development files and all its dev depedencies (like gtk) to be able to compile wxwidgets c++ programs (wxsmith is a wxwidgets rad editor).