Enabled the REDISTRIBUTION option in the Makefile for sky130A.
Corrected the convert_spectre.py to ignore .scs files, which have
no SPICE equivalent.

common/convert_spectre.py

diff --git a/common/convert_spectre.py b/common/convert_spectre.py
index e83cce0..6c3655c 100755
--- a/common/convert_spectre.py
+++ b/common/convert_spectre.py
@@ -499,6 +499,10 @@
             if fileext == '.v' or fileext == '.va':
                 continue
 
+            # .scs files are purely spectre and meaningless to SPICE, so ignore them.
+            if fileext == '.scs':
+                continue
+
             froot = os.path.split(filename)[1]
             convert_file(filename, spicepath + '/' + froot)
 

sky130/Makefile

diff --git a/sky130/Makefile b/sky130/Makefile
index cbe6745..d8eb452 100644
--- a/sky130/Makefile
+++ b/sky130/Makefile
@@ -117,8 +117,8 @@
 
 # Module definitions for each process node
 # (Note that MOS is default and therefore not used anywhere)
-# SKY130A_DEFS += -DMETAL5 -DMIM -DREDISTRIBUTION
-SKY130A_DEFS += -DMETAL5 -DMIM
+SKY130A_DEFS += -DMETAL5 -DMIM -DREDISTRIBUTION
+# SKY130A_DEFS += -DMETAL5 -DMIM
 
 # Add staging path
 SKY130A_DEFS += -DSTAGING_PATH=${STAGING_PATH}

sky130/magic/sky130.tech

diff --git a/sky130/magic/sky130.tech b/sky130/magic/sky130.tech
index d000ffd..90e4240 100644
--- a/sky130/magic/sky130.tech
+++ b/sky130/magic/sky130.tech
@@ -3870,6 +3870,9 @@
  defaultsideoverlap allm4 metal4 allm5 metal5 47
 #endif (METAL5)
 
+#ifdef REDISTRIBUTION
+#endif (REDISTRIBUTION)
+
 # Devices:  Use document (...)
 
 variants (sim)