how do I stop gcjh from generating function bodies?

Sat Nov 3 17:24:00 GMT 2001

I have a method
 public class C implements I {
 public I returnSelfAsI() { return this; }
 }
...but gcjh generates a body for it in the .h file, except that CNI
doesn't grok interfaces, so the generated .h doesn't compile (CNI
doesn't understand that it's okay to return a C when the declared
return type is an I).
How can I inhibit this behavior? I have a mass gcjh invocation as part
of my build process, so hand-editing the .h isn't a wise idea.
 - a
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