Corrected the "property put" command to handle changes in the

GDS_FILE property in the same way that it handles changes to the
FIXED_BBOX property, by setting or clearing the associated flag
bit in the cell.  Otherwise, it becomes impossible to make a
cell writeable, as it always has some belief that it is still
attached to a specific GDS file.  Corrected an error in the
"gds" ("calma") command parsing that switched the callbacks for
the "noduplicates" and "nodatestamp" options.

commands/CmdCD.c

@@ -145,8 +145,8 @@ CmdCalma(w, cmd)
 	"library [yes|no]	do not output the top level, only subcells",
 	"lower [yes|no]		allow both upper and lower case in labels",
 	"merge [yes|no]		merge tiles into polygons in the output",
-	"noduplicates [yes|no]	do not read cells that exist before reading GDS",
 	"nodatestamp [yes|no]	write a zero value creation date stamp",
+	"noduplicates [yes|no]	do not read cells that exist before reading GDS",
 	"read file		read Calma GDS-II format from \"file\"\n"
 	"		into edit cell",
 	"readonly [yes|no]	set cell as read-only and generate output from GDS file",

database/DBprop.c

@@ -83,6 +83,15 @@ DBPropPut(cellDef, name, value)
 	    cellDef->cd_flags |= CDFIXEDBBOX;
     }
 
+    /* Special handling of GDS_FILE, which uses CDVENDORGDS as a quick lookup */
+    if (!strcmp(name, "GDS_FILE"))
+    {
+	if (value == (ClientData)NULL)
+	    cellDef->cd_flags &= ~CDVENDORGDS;
+	else
+	    cellDef->cd_flags |= CDVENDORGDS;
+    }
+
     entry = HashFind(htab, name);
     oldvalue = (char *)HashGetValue(entry);
     if (oldvalue != NULL) freeMagic(oldvalue);