Since 4.1 keys are compared with trailing spaces. 
Thus, a "x " key can be inserted between a couple of "x" keys.
The existing code did not take this into account. Though the
comments in the code claimed it did.

when using --new" into 4.1 tree.

into mysql.com:/home/dlenev/src/mysql-4.0-bg8894

into serg.mylan:/usr/home/serg/Abk/mysql-4.1

sql/sql_table.cc: print an error with a function that respects width modifiers (%.64s)

into mysql.com:/usr/local/home/marty/MySQL/mysql-4.1

into mysql.com:/usr/local/home/marty/MySQL/mysql-4.1

into mdk10.(none):/home/reggie/bk/mysql-4.1

 - Remove the local static var

into serg.mylan:/usr/home/serg/Abk/mysql-4.1

into mysql.com:/usr/local/home/marty/MySQL/mysql-4.1

into mdk10.(none):/home/reggie/bk/mysql-4.1

mysqldump.c:
  Fixed get_actual_table_name so that it calls mysql_free_result in all cases that a non-NULl result is returned

into mysql.com:/usr/local/home/marty/MySQL/mysql-4.1

into mysql.com:/home/cps/mysql/trees/mysql-4.1

wait_for_pid function is fixed to wait for pid removal in "stop".
recomitted with post-review fix  

into neptunus.(none):/home/msvensson/mysql/mysql-4.1

into mysql.com:/space/pekka/ndb/version/my41

platforms": yet another issue with floating pointer comparisons.
The fix uses the workaround with volatiles.

into sanja.is.com.ua:/home/bell/mysql/bk/work-union_merge-4.1

into neptunus.(none):/home/msvensson/mysql/mysql-4.1

Fix 'Bootstrap' to bypass a problem with "bk changes" by changing the directory before calling the command.

into neptunus.(none):/home/msvensson/mysql/mysql-4.1-synced

into neptunus.(none):/home/msvensson/mysql/mysql-4.1-synced

Make test_if_skip_sort_order() rebuild tab->ref if it decides to use an index
different from the index join optimizer has choosen.  

 - Add function Item_param::fix_fields which will update any subselect they are part of and indicate that the subsleect is not const during prepare phase, and thus should not be executed during prepare.