failing fulltext_order_by.test fixed

myisam/sort.c:
  warning fixed
sql/ha_myisam.h:
  not necessary

myisam/sort.c

@@ -852,7 +852,7 @@ merge_buffers(MI_SORT_PARAM *info, uint keys, IO_CACHE *from_file,
   uchar *strpos;
   BUFFPEK *buffpek,**refpek;
   QUEUE queue;
-  int *killed= killed_ptr(info->sort_info->param);
+  volatile int *killed= killed_ptr(info->sort_info->param);
 
   DBUG_ENTER("merge_buffers");
 

sql/ha_myisam.h

@@ -81,7 +81,6 @@ class ha_myisam: public handler
   int index_first(byte * buf);
   int index_last(byte * buf);
   int index_next_same(byte *buf, const byte *key, uint keylen);
-  int index_end() { ft_handler=NULL; return 0; }
   int ft_init()
   {
     if (!ft_handler)

sql/handler.h

@@ -367,6 +367,7 @@ public:
   virtual int read_range_next();
   int compare_key(key_range *range);
   virtual int ft_init() { return HA_ERR_WRONG_COMMAND; }
+  void ft_end() { ft_handler=NULL; }
   virtual FT_INFO *ft_init_ext(uint flags,uint inx,const byte *key,
                                uint keylen)
     { return NULL; }

sql/opt_range.h

@@ -563,7 +563,7 @@ class FT_SELECT: public QUICK_RANGE_SELECT {
 public:
   FT_SELECT(THD *thd, TABLE *table, uint key) :
       QUICK_RANGE_SELECT (thd, table, key, 1) { init(); }
-
+  ~FT_SELECT() { file->ft_end(); }
   int init() { return error=file->ft_init(); }
   int get_next() { return error=file->ft_read(record); }
   int get_type() { return QS_TYPE_FULLTEXT; }