I have grabbed a fresh checkout from CVS a couple of hours ago and have built Kaffe on linux-ppc. Everything compiled OK, but the resulting version of kaffe didn't seem to work.
I have invoked kaffe with '-vmdebug NATIVELIB' enabled; the problem was a missing native (??) implementation of java.Class.newInstance(). That method is implemented in Java, not as a native method. I rebuilt Klasses.jar and everything was fine. As nice side effect of this, I don't get any more VerifyErrors. I used jikes 1.14