--- agfl-2.3/utils/scanner.h.orig	Fri Oct 17 14:36:29 2003
+++ agfl-2.3/utils/scanner.h	Fri Nov 28 12:06:48 2003
@@ -24,8 +24,9 @@
 
 using namespace std;
 #include <stdlib.h>
+#ifndef yyFlexLexerOnce
 #include <FlexLexer.h>
-
+#endif
 
 //------------------------------------------------------------------------------
 // Class Scanner