Hey there! I was looking through Documentation/MyFirstObjectWalk.txt, and upon building the branch containing the given code, I find that I get the error that C99 does not allow implicit function declaration where trace_printf() is encountered. However, upon including trace.h the error disappears, and the build proceeds just fine. I did put DEVELOPER=1 in config.mak before building, but it doesn't seem to work. Is the error pointing to a problem, or am I doing something wrong? If it is the former, I would be very happy to send a patch fixing this. Thanks a lot! Vinayak