Sorry, I guess I should have provided a little more info.
I downloaded and installed this from the OpenSuse "build" repositories:
Code::Blocks: 2.8.8 (Linux, unicode) - built 07-27-09
The packages I've installed (if I'm following this correctly -- I'm new to wxwidgets and Code::Blocks):
wxGTK - 2.8.8.1-1.48
wxGTK-compat - 2.8.8.1-1.48
wxGTK-devel - 2.8.8.1-1.48
wxGTK-gl - 2.8.8.1-1.48
So it looks like I don't have any major version conflicts. I'm using the wxsmith plugin to autogenerate the project.
Could there be a conflict between the "compat" and "regular" wxGTK packages?