Re: gEDA-user: Version compatibility between gschem and PCB

[Colin D Bennett <colin@xxxxxxxxxxx>]

On Thu, 11 Aug 2011 10:03:31 -0700
Andrew Poelstra <asp11@xxxxxx> wrote:

> On Thu, Aug 11, 2011 at 10:40:51AM -0400, John Hudak wrote:
> >    I came across an board layout file that requires a newer version
> > of PCB than I have installed.  My version of PCB is 20091103.  If I
> > upgrade to the most recent version of PCB, will it be able to
> > interoperate with gschem 1.6.1.20100214?
> 
> The programs aren't really linked. What do you mean by "interoperate"?
> 
> In any case, the only file format change from 2007 to 2010 was to add
> holes in polygons. I can't imagine gschem would know or care about
> this.

I guess the only things linking gschem and pcb are the netlist output
by gnetlist from the .sch file, and if you use gsch2pcb then it
generates the .pcb file with the right footprints instantiated as
elements.  Although new pcb versions have the Import Schematics feature
which somehow reads the gschem .sch files (does it call out to
gnetlist or other tools, or is it self-contained?).

> >    Also, a clarification of terminology for me is needed.  The PCB
> > website ([1]http://pcb.gpleda.org/) lists a number of
> > 'snapshots'......are these beta releases or are they the most
> > recent releases for distribution?
> 
> The snapshots are official releases -- at least, they are what appear
> in distributions. I believe they are called as such because we ran out
> of version numbers at 1.99z and haven't decided what to do about it.

It's easy.  Increment the version number to 1.100.

Regards,
Colin


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