--- tool/lemon.c.orig	2011-10-03 02:22:59.175632024 +0100
+++ tool/lemon.c	2011-10-03 02:25:38.289402708 +0100
@@ -118,7 +118,6 @@ void  SetSize(int);             /* All s
 char *SetNew(void);               /* A new set for element 0..N */
 void  SetFree(char*);             /* Deallocate a set */
 
-char *SetNew(void);               /* A new set for element 0..N */
 int SetAdd(char*,int);            /* Add element to a set */
 int SetUnion(char *,char *);    /* A <- A U B, thru element N */
 #define SetFind(X,Y) (X[Y])       /* True if Y is in set X */