diff -r 55ffcf693d6d -r d0cdf1d00b74 stage4/generate_iec/generate_iec.cc
--- a/stage4/generate_iec/generate_iec.cc	Sat Nov 17 10:08:38 2007 +0100
+++ b/stage4/generate_iec/generate_iec.cc	Thu Dec 06 18:01:58 2007 +0100
@@ -356,9 +356,11 @@
 /*  integer_type_name '(' subrange')' */
 void *visit(subrange_specification_c *symbol) {
   symbol->integer_type_name->accept(*this);
-  s4o.print("(");
-  symbol->subrange->accept(*this);
-  s4o.print(")");
+  if (symbol->subrange != NULL) {
+    s4o.print("(");
+    symbol->subrange->accept(*this);
+    s4o.print(")");
+  }
   return NULL;
 }