Inherit in CMOD

Hi guys!

Say I have a CMOD with

PIKECLASS A {

}

PIKECLASS B {

}

How do get B to inherit A? I've poked around a bit in the source code and found 

PIKECLASS Result
	program_flags PROGRAM_USES_PARENT|PROGRAM_NEEDS_PARENT;
{

	INHERIT "__builtin.Sql.Result";
}

and stuff like that in the Sql modules. I tried to emulate that and got it to compile, but when I try to use the code it crashes.

So what is the proper way to solve inheritance in a CMOD?

Cheers

# Pontus