From 424bb589a22cfa6b2ceaba2a9edc61c08e46f74a Mon Sep 17 00:00:00 2001
From: Cheer Xiao <xiaqqaix@gmail.com>
Date: Tue, 1 Jan 2013 01:14:35 +0800
Subject: [PATCH] Make io_data_t destructor virtual

---
 io.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/io.h b/io.h
index d811f6ea2..b7abbec76 100644
--- a/io.h
+++ b/io.h
@@ -108,7 +108,7 @@ class io_data_t
     {
     }
 
-    ~io_data_t()
+    virtual ~io_data_t()
     {
         free((void *)filename_cstr);
     }