Dear Electric developers,

I’m trying in vain to set up and test a surround/enclosure DRCs in Electric 
VLSI 9.07, as in 5.2b MOSIS:

<LayersRule ruleName="5.2b Mosis" layerNames="{Metal-1,Poly-Cut}" 
type="SURROUND" when="ALL" value="1.0”/>

In my understanding a stack of 3u POLY/2u CUT/3u METAL pure nodes should 
trigger this rule, because the surround is only 0.5u. Perhaps I’ve 
misunderstood the meaning of type=“SURROUND”?

Looking in e.g. MTDRCLayoutTool.java it seems that related code is commented 
out. Could somebody comment on the status of SURROUND (and EXTENSION) DRCs, or 
perhaps post a working example of triggering such rules?

Thank you for your consideration, Ole
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