Detailed routing warning for sky130 PDK

[kareefardi]

The following warning is printed when running detailed routing for sky130.

[WARNING DRT-0349] LEF58_ENCLOSURE with no CUTCLASS is not supported. Skipping for layer mcon
[WARNING DRT-0349] LEF58_ENCLOSURE with no CUTCLASS is not supported. Skipping for layer mcon
[WARNING DRT-0349] LEF58_ENCLOSURE with no CUTCLASS is not supported. Skipping for layer via
[WARNING DRT-0349] LEF58_ENCLOSURE with no CUTCLASS is not supported. Skipping for layer via
[WARNING DRT-0349] LEF58_ENCLOSURE with no CUTCLASS is not supported. Skipping for layer via2
[WARNING DRT-0349] LEF58_ENCLOSURE with no CUTCLASS is not supported. Skipping for layer via2
[WARNING DRT-0349] LEF58_ENCLOSURE with no CUTCLASS is not supported. Skipping for layer via3
[WARNING DRT-0349] LEF58_ENCLOSURE with no CUTCLASS is not supported. Skipping for layer via3
[WARNING DRT-0349] LEF58_ENCLOSURE with no CUTCLASS is not supported. Skipping for layer via4
[WARNING DRT-0349] LEF58_ENCLOSURE with no CUTCLASS is not supported. Skipping for layer via4

I am wondering what is its significance

[maliberty]

My guess is not much so long as the vias have sufficient enclosure and the router doesn't need to add patch metal.

[maliberty]

@osamahammad21 any thoughts?