General Description: Ngdbuild will crash during the assembly stage when there are multiple instantiations of the same module.
This is a modular design limitation at this time. Ngdbuild should give an error message, not a segmentation fault.
Release 3.1i - edif2ngd D.17 Copyright (c) 1995-2000 Xilinx, Inc. All rights reserved. Writing the design to "fir.ngo"... Loading design module "/proj/sqa/elias/tcases/D/modular_design/seu_fir/Modules/fir/fir.ngo"... ERROR:NgdBuild - Found 3 active blocks 'fir' in the design. Segmentation Fault
A work around is to make a separate copy of the module with a unique name for every module instantiation.
A fix will be added to the first 3.1i quarterly update to so that ngdbuild exits with an error instead of crashing.