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Subject: Re: [geda-user] Desired changes (was:"New experimental netlist features")
From: John Doty <jpd AT noqsi DOT com>
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Date: Tue, 8 Sep 2015 09:01:46 -0600
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On Sep 8, 2015, at 8:25 AM, Nicklas Karlsson (nicklas DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com] <geda-user AT delorie DOT com> wrote:

>>> The basic problem is that referencing symbols in a global library requires that the global library not change. So, if you change the default library, you break old projects.
> 
> Not if symbols are copied into library and only updated then pressing the update button.
> 

Not true. Symbols are, by default, accessed by referring to the symbol file name in gschem and gnetlist. Simply relaunching gschem or running gnetlist effectively updates your symbols from whatever the symbol files contain. You can embed symbols in the schematics, and that’s a solution in some cases, but it is too inflexible for others.

For many projects, it’s handier to compose a project symbol library selectively from the distributed default symbols, symbols from gedasymbols, and your own custom symbols. Then you get editable symbols that you can put under your project’s revision control system. Once you have this, it’s nice, but composing it is a bit clumsy with our current tools.

John Doty              Noqsi Aerospace, Ltd.
http://www.noqsi.com/
jpd AT noqsi DOT com