--- a/stage3/datatype_functions.hh	Sun Feb 12 20:43:49 2012 +0100
+++ b/stage3/datatype_functions.hh	Mon Feb 13 16:29:55 2012 +0000
@@ -41,6 +41,7 @@
   symbol_c *nonformal_operand_list;
   symbol_c *   formal_operand_list;
 
+  enum {POU_FB, POU_function} POU_type;
 //symbol_c &*datatype;
 //std::vector <symbol_c *> &candidate_datatypes;
   std::vector <symbol_c *> &candidate_functions;