[Magic-dev] Re: magic crash

[R. Timothy Edwards]

Dear Mark,

> 	I have installed magic 7.3.89 and noticed it dies when I try 
> to open the special netlist tools.

Oops, yes, I see that the great graphics backing-store mechanism was
not meant to apply to non-layout windows, such as the netlist window,
but the code doesn't check what kind of window it is.  The fix is to
add

    if (w->w_client != DBWclientID) return;

at the top of grtkCreateBackingStore() in graphics/grTkCommon.c
(before line 360), or wait for revision 90, which I will post as
soon as I figure out the GDS negative-coordinate error that Mike
Godfrey has presented me with (I came across the same error when
doing our TSMC chip last year, but hadn't encountered an example
since then).

					---Tim


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