Due to a compiler bug, slave.cc:tables_ok() sometimes wrongly returns

1 if the return type is int or int_fast8_t.  The test case that showed
this problem is rpl000001 and the tested version was MySQL 5.0.2.  The
compiler with the problem is GCC 3.0.4 runing on "Linux bitch 2.4.18
#2 Thu Apr 11 14:37:17 EDT 2002 sparc64 unknown".

By changing the return type to bool the problem disappear.  (Another
way to make the problem disappear is to simply print the returned
value with printf("%d",?).  The printed returned value is always 0 in
the test cases I have run.)  This is only a partial solution to the
problem, since someone could later change the return type of the
function back to int or some other type that does not work.

sql/slave.cc

@@ -759,7 +759,7 @@ static TABLE_RULE_ENT* find_wild(DYNAMIC_ARRAY *a, const char* key, int len)
     1           should be logged/replicated                  
 */
 
-int tables_ok(THD* thd, TABLE_LIST* tables)
+bool tables_ok(THD* thd, TABLE_LIST* tables)
 {
   bool some_tables_updating= 0;
   DBUG_ENTER("tables_ok");

sql/slave.h

@@ -496,7 +496,7 @@ int show_master_info(THD* thd, MASTER_INFO* mi);
 int show_binlog_info(THD* thd);
 
 /* See if the query uses any tables that should not be replicated */
-int tables_ok(THD* thd, TABLE_LIST* tables);
+bool tables_ok(THD* thd, TABLE_LIST* tables);
 
 /*
   Check to see if the database is ok to operate on with respect to the