--- a/stage1_2/iec_bison.yy	Thu Jun 14 17:50:37 2012 +0100
+++ b/stage1_2/iec_bison.yy	Fri Jun 15 19:54:33 2012 +0100
@@ -161,10 +161,7 @@
          while (0)
 
 
-/* A macro for printing out internal parser errors... */
-#define ERROR error_exit(__FILE__,__LINE__)
-/* function defined in main.cc */
-extern void error_exit(const char *file_name, int line_no);
+#include "../main.hh" // required for ERROR() and ERROR_MSG() macros.