Fix FTBFS with gcc 15. This resolves issue #28

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>

src/translators/btparse/ast.h

@@ -89,7 +89,7 @@ extern AST *zzastStack[];
 void zzlink(AST **, AST **, AST **);
 void zzsubchild(AST **, AST **, AST **);
 void zzsubroot(AST **, AST **, AST **);
-void zzpre_ast(AST *, void (*)(), void (*)(), void (*)());
+void zzpre_ast(AST *, void (*)(AST *), void (*)(AST *), void (*)(AST *));
 void zzfree_ast(AST *);
 AST *zztmake(AST *, ...);
 AST *zzdup_ast(AST *);