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Date:	Tue, 8 Dec 2015 17:29:19 -0500
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From:	DJ Delorie <dj AT delorie DOT com>
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Subject:	Re: [geda-user] gsch2pcb after refdes-renum? (If implemented
	syncronization detail)
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> > So already the refdes isn't a unique identifier for a symbol...
> 
> In such case it is a slot and the slot number could also be used?

Sometimes.  Other times, like large MCUs, there are no slots, just
different symbols using the same refdes, which the netlisters just
merge together.

At best, "refdes + pinnumber" may be a unique identifier, *except*
that changing the refdes and/or pin numbers changes the identifier...
and those are the things we want to change.

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