diff --git a/libconfig-1.4.9/contrib/copy_setting.c b/libconfig-1.4.9/contrib/copy_setting.c
new file mode 100644
index 0000000000000000000000000000000000000000..1b20e5995f1078db2792d2dad828b75ba4fa4944
--- /dev/null
+++ b/libconfig-1.4.9/contrib/copy_setting.c
@@ -0,0 +1,161 @@
+void config_setting_copy_simple(config_setting_t * parent, const config_setting_t * src);
+void config_setting_copy_elem(config_setting_t * parent, const config_setting_t * src);
+
+void config_setting_copy_aggregate(config_setting_t * parent, const config_setting_t * src);
+int config_setting_copy(config_setting_t * parent, const config_setting_t * src);
+
+void config_setting_copy_simple(config_setting_t * parent, const config_setting_t * src)
+{
+    if(config_setting_is_aggregate(src))
+    {
+        config_setting_copy_aggregate(parent, src);
+    }
+    else 
+    {
+        config_setting_t * set;
+        
+        set = config_setting_add(parent, config_setting_name(src), config_setting_type(src));
+
+        if(CONFIG_TYPE_INT == config_setting_type(src))
+        {
+            config_setting_set_int(set, config_setting_get_int(src));
+            config_setting_set_format(set, src->format);
+        }
+        else if(CONFIG_TYPE_INT64 == config_setting_type(src))
+        {
+            config_setting_set_int64(set, config_setting_get_int64(src));
+            config_setting_set_format(set, src->format);
+        }
+        else if(CONFIG_TYPE_FLOAT == config_setting_type(src))
+            config_setting_set_float(set, config_setting_get_float(src));
+        else if(CONFIG_TYPE_STRING == config_setting_type(src))
+            config_setting_set_string(set, config_setting_get_string(src));
+        else if(CONFIG_TYPE_BOOL == config_setting_type(src))
+            config_setting_set_bool(set, config_setting_get_bool(src));
+    }
+}
+
+void config_setting_copy_elem(config_setting_t * parent, const config_setting_t * src)
+{
+    config_setting_t * set;
+    
+    set = NULL;
+    if(config_setting_is_aggregate(src))
+        config_setting_copy_aggregate(parent, src);
+    else if(CONFIG_TYPE_INT == config_setting_type(src))
+    {
+        set = config_setting_set_int_elem(parent, -1, config_setting_get_int(src));
+        config_setting_set_format(set, src->format);
+    }
+    else if(CONFIG_TYPE_INT64 == config_setting_type(src))
+    {
+        set = config_setting_set_int64_elem(parent, -1, config_setting_get_int64(src));
+        config_setting_set_format(set, src->format);   
+    }
+    else if(CONFIG_TYPE_FLOAT == config_setting_type(src))
+        set = config_setting_set_float_elem(parent, -1, config_setting_get_float(src));
+    else if(CONFIG_TYPE_STRING == config_setting_type(src))
+        set = config_setting_set_string_elem(parent, -1, config_setting_get_string(src));
+    else if(CONFIG_TYPE_BOOL == config_setting_type(src))
+        set = config_setting_set_bool_elem(parent, -1, config_setting_get_bool(src));
+}
+
+void config_setting_copy_aggregate(config_setting_t * parent, const config_setting_t * src)
+{
+    config_setting_t * newAgg;
+    int i, n;
+
+    newAgg = config_setting_add(parent, config_setting_name(src), config_setting_type(src));
+    
+    n = config_setting_length(src);    
+    for(i = 0; i < n; i++)
+    {
+        if(config_setting_is_group(src))
+        {
+            config_setting_copy_simple(newAgg, config_setting_get_elem(src, i));            
+        }
+        else
+        {
+            config_setting_copy_elem(newAgg, config_setting_get_elem(src, i));
+        }        
+    }
+}
+
+int config_setting_copy(config_setting_t * parent, const config_setting_t * src)
+{
+    if((!config_setting_is_group(parent)) &&
+       (!config_setting_is_list(parent)))
+        return CONFIG_FALSE;
+
+    if(config_setting_is_aggregate(src))
+    {
+        config_setting_copy_aggregate(parent, src);
+    }
+    else
+    {
+        config_setting_copy_simple(parent, src);
+    }
+    
+    return CONFIG_TRUE;
+}
+
+
+//Some sample code
+
+//-----------------------------------------------------------------------------
+int main(int argc, char *argv[]) 
+//-----------------------------------------------------------------------------
+{
+    config_t cfgSrc;
+    config_t cfgSrcCopy;
+    config_t cfgDst;
+    
+
+    config_init(&cfgSrc);
+    config_init(&cfgSrcCopy);
+    config_init(&cfgDst);
+    
+    if(CONFIG_FALSE == config_read_file(&cfgSrc, "/data/menu/cfgSrc.cfg"))
+    {
+        fprintf(stderr, "Failed to open cfgSrc.cfg\n");
+    }
+    if(CONFIG_FALSE == config_read_file(&cfgDst, "/data/menu/cfgDst.cfg"))
+    {
+        fprintf(stderr, "Failed to open cfgDst.cfg\n");
+    }    
+    
+    /*
+    printf("Dump cfgSrc.cfg\n");
+    DumpCfgSetting(config_root_setting(&cfgSrc));
+    
+    printf("Dump cfgDst.cfg\n");
+    DumpCfgSetting(config_root_setting(&cfgDst));
+    */
+
+    config_setting_t * src;
+    config_setting_t * dst;
+
+    dst = config_lookup(&cfgDst, "grp1");
+
+    if((0 != (dst = config_lookup(&cfgDst, "grp1"))) &&
+       (0 != (src = config_lookup(&cfgSrc, "application.window"))))
+       //(0 != (src = config_lookup(&cfgSrc, "list"))))
+       
+    {
+        if(CONFIG_FALSE == config_setting_copy(dst, src))
+        {
+            printf("Failed to copy src to dst\n");
+        }
+    }
+
+    config_setting_copy(config_root_setting(&cfgSrcCopy), config_root_setting(&cfgSrc));
+
+    config_write_file(&cfgDst, "/data/menu/cfgDstMod.cfg");
+    config_write_file(&cfgSrcCopy, "/data/menu/cfgSrcCpy.cfg");
+    config_write_file(&cfgSrc, "/data/menu/cfgSrcOrig.cfg");
+
+    config_destroy(&cfgSrc);
+    config_destroy(&cfgDst);
+
+    return 0;
+}