[avr-chat] Any way to friend an interrupt handler?

[Rick Mann]

I'm trying to allow my timer overflow interrupt handler access to private 
static members of a C++ class, with this:

    friend    ::TIMER1_OVF_vect();

But I can' figure out how to declare the interrupt handler beforehand in a way 
that doesn't make the compiler complain. It seems like the ISR() macro declares 
and immediately defines the handler, so I tried copying that declaration to my 
header file, but I get an error "ambiguates old declaration".

Is there any way to pull this off? Thanks!

-- 
Rick