Index: generic/nsfError.c
===================================================================
diff -u -r14091c15df049d9cdb1417c6f037b333b0b82bdd -r5592fe7601230e30f1b02b73de8fe84fc05917f0
--- generic/nsfError.c	(.../nsfError.c)	(revision 14091c15df049d9cdb1417c6f037b333b0b82bdd)
+++ generic/nsfError.c	(.../nsfError.c)	(revision 5592fe7601230e30f1b02b73de8fe84fc05917f0)
@@ -72,10 +72,11 @@
 extern void
 NsfDStringArgv(Tcl_DString *dsPtr, int objc, Tcl_Obj *CONST objv[]) {
   int i;
-  CONST char *objStr;
-  for (i=0; i<objc; i++) {
-    objStr = i == 0 ? MethodName(objv[i]) : ObjStr(objv[i]);
-    Tcl_DStringAppendElement(dsPtr, objStr);
+  if (objc > 0) {
+    Tcl_DStringAppendElement(dsPtr, MethodName(objv[0]));
+    for (i=1; i<objc; i++) {
+      Tcl_DStringAppendElement(dsPtr, ObjStr(objv[i]));
+    }
   }
 }