diff -r 0ee0055a8ffe -r 72ae82e65dbc stage4/generate_c/generate_c_vardecl.cc
--- a/stage4/generate_c/generate_c_vardecl.cc	Thu Sep 25 10:25:30 2008 +0200
+++ b/stage4/generate_c/generate_c_vardecl.cc	Thu Sep 25 10:26:10 2008 +0200
@@ -401,12 +401,14 @@
      *                __plc_pt_c<INT, 8*sizeof(INT)> START_P::loc = __plc_pt_c<INT, 8*sizeof(INT)>("I2");
      */
     typedef enum {finterface_vf,
-                    local_vf,
-		    localinit_vf,
-		    init_vf,
-		    constructorinit_vf,
-		    globalinit_vf
-		   } varformat_t;
+                  foutputdecl_vf,
+                  foutputassign_vf,
+                  local_vf,
+		              localinit_vf,
+		              init_vf,
+		              constructorinit_vf,
+		              globalinit_vf
+		             } varformat_t;
 
 
   private:
@@ -513,7 +515,7 @@
           s4o.print("\n" + s4o.indent_spaces);
           this->current_var_type_symbol->accept(*this);
           if ((current_vartype & (output_vt | inoutput_vt)) != 0)
-            s4o.print(" &");
+            s4o.print(" *__");
           else
             s4o.print(" ");
           list->elements[i]->accept(*this);
@@ -527,6 +529,36 @@
         }
       }
 
+      if (wanted_varformat == foutputdecl_vf) {
+        for(int i = 0; i < list->n; i++) {
+          if ((current_vartype & (output_vt | inoutput_vt)) != 0) {
+            s4o.print(s4o.indent_spaces);
+            this->current_var_type_symbol->accept(*this);
+            s4o.print(" ");
+            list->elements[i]->accept(*this);
+            s4o.print(";\n");
+          }
+        }
+      }
+
+      if (wanted_varformat == foutputassign_vf) {
+        for(int i = 0; i < list->n; i++) {
+          if ((current_vartype & (output_vt | inoutput_vt)) != 0) {
+            s4o.print(s4o.indent_spaces + "if (__");
+            list->elements[i]->accept(*this);
+            s4o.print(" != NULL) {\n");
+            s4o.indent_right();
+            s4o.print(s4o.indent_spaces + "*__");
+            list->elements[i]->accept(*this);
+            s4o.print(" = ");
+            list->elements[i]->accept(*this);
+            s4o.print(";\n");
+            s4o.indent_left();
+            s4o.print(s4o.indent_spaces + "}\n");
+          }
+        }
+      }
+
       if (wanted_varformat == constructorinit_vf) {
         for(int i = 0; i < list->n; i++) {
           if (is_fb) {