On Tue, 2008-06-03 at 10:49 -0600, John Doty wrote:

> > I thought you were arguing in favour of the previous behaviour,  
> > where it
> > is pretty hard, if impossible to auto-update the footprints in a .pcb
> > file.
> 
> That's because you don't use a project-specific copy of the symbol.  
> If you do, it's just Hs, change the footprint, make.

I'm talking about PCB, PCB footprints / packages (.fp). Once they are in
your layout (.pcb), they are there to stay. No change to the .fp file
will update the board layout, and there is no easy / foolproof way to
replace footprints already placed with an updated copy from a new .fp
file.

> A worthy goal. Never achieved in any large-scale use of make that  
> I've ever seen, though.

Most of the gEDA tools have options to switch of the licence information
which is output verbatim at each run - that should be a start.

> I don't use PCB. My customers all have their own PCB flows. But here,  
> the issue for me is schematic reuse: the layout generally has to be  
> redone for any new project, even if most of the schematics are reused  
> from previous ones.

I did wonder, from your previous comments. PCB can't do the equivelant
of what the gEDA tools do with non-embedded symbols.

-- 
Peter Clifton

Electrical Engineering Division,
Engineering Department,
University of Cambridge,
9, JJ Thomson Avenue,
Cambridge
CB3 0FA

Tel: +44 (0)7729 980173 - (No signal in the lab!)



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