- Added 3.23.53 News section to the manual
 - Updated version number in configure.in to 3.23.53

  Add multithreaded stress tests for InnoDB
  new file

  In HP-UX-10.20 my_pthread_mutex_trylock erroneously returned 0 also in the case where the mutex was not acquired

  Fix an infinite recursion in my_pthread_mutex_trylock in HP-UX-10.20; the same bug is in the 4.0 tree

into sergbook.mysql.com:/usr/home/serg/Abk/mysql

  Fix a critical portability bug introduced in the Windows version

  Put a note that the InnoDB HANDLER code is not used until 4.1, and appears for documentational purposes only

  Cleanup of latest rewrite of innobase_mysql_print_thd; from now on changing this code is forbidden unless a written permission is received from Heikki 3 days in advance

Moved IF(test,column,NULL) code to 4.0
Changed mysys_priv.h to include my_pthread.h or my_no_pthread.h.
Removed some CR's in os2 files.

  Add tentative code which can be used in HANDLER implementation for InnoDB

  Redefine sprintf as ut_sprintf inside InnoDB code; some old Unixes may have a pointer as the return type of sprintf
lock0lock.c:
  Add safety against buffer overruns in latest deadlock info
srv0srv.c:
  Add safety against buffer overruns in SHOW INNODB STATUS
os0thread.h, os0thread.c:
  Fix a portability bug introduced in Windows when we changed os_thread_id_t to be the same as os_thread_t

into sinisa.nasamreza.org:/mnt/work/mysql

and removed the 3.23.53 News section for now until 3.23.52 is officially
tagged.

 - Only define alloca as a compiler builtin, if we use GCC and there
   is no alloca.h installed

  Add some more safety margin to buffer sizes in prints

  Found the bug in modified innobase_mysqld_print_thd; the person who modifies code should test that his change works

  Revert changes to sprintf until we know why control characters scrambled the output

Remove not needed locks in SHOW OPEN TABLES

   compiler builtin when using gcc

  Merge InnoDB-3.23.52d