I set a break point at a specific call to clEnqueueNDRangeKernel (using the gDEBugger API functions breakpoints). Trying to step into this function, in order to step through the kernel, causes an error to pop up : "Could not debug kernel. This kernel uses unsupported features. Please check the release notes for more details".
I found nothing relevant in the release notes. I commented out my kernel until left with the most basic operations and the error still occurs. This error also appears with the teapot example.
When I add a breakpoint to a kernel, the breakpoint is ignored because it "could not be bound".