GUI Debugger

[Kenneth Porter <shiva sewingwitch com>]

What yum or rpm invocation do I need to use to discover what GUI debuggers 
are available in Fedora? I'm working on an OpenGL-based game so a 
curses-based debugger would probably be best, but I can run the app 
windowed so an X-based debugger would also be useful. Mostly I'm looking 
for something that can show me source lines, the current call stack, the 
local variables, and watched variables. I tried yum install for insight and 
ddd but it didn't find those.