A name of macro is fixed.

sql/sql_class.cc

@@ -1498,7 +1498,7 @@ int select_dumpvar::prepare(List<Item> &list, SELECT_LEX_UNIT *u)
     {
       Item_splocal *var;
       (void)local_vars.push_back(var= new Item_splocal(mv->s, mv->offset));
-#ifndef DEBUG_OFF
+#ifndef DBUG_OFF
       var->owner= mv->owner;
 #endif
     }

sql/sql_class.h

@@ -2086,7 +2086,7 @@ class multi_update :public select_result_interceptor
 class my_var : public Sql_alloc  {
 public:
   LEX_STRING s;
-#ifndef DEBUG_OFF
+#ifndef DBUG_OFF
   /*
     Routine to which this Item_splocal belongs. Used for checking if correct
     runtime context is used for variable handling.

sql/sql_yacc.yy

@@ -2288,7 +2288,7 @@ sp_case:
 	      ivar.length= 5;
 	      Item_splocal *var= new Item_splocal(ivar,
                                                   ctx->current_pvars()-1);
-#ifndef DEBUG_OFF
+#ifndef DBUG_OFF
               if (var)
                 var->owner= sp;
 #endif
@@ -5875,7 +5875,7 @@ select_var_ident:
                my_var *var;
 	       ((select_dumpvar *)lex->result)->
                  var_list.push_back(var= new my_var($1,1,t->offset,t->type));
-#ifndef DEBUG_OFF
+#ifndef DBUG_OFF
 	       if (var)
 		 var->owner= lex->sphead;
 #endif
@@ -7181,7 +7181,7 @@ simple_ident:
             Item_splocal *splocal;
             splocal= new Item_splocal($1, spv->offset, lex->tok_start_prev - 
                                       lex->sphead->m_tmp_query);
-#ifndef DEBUG_OFF
+#ifndef DBUG_OFF
             if (splocal)
               splocal->owner= lex->sphead;
 #endif