same fix from 4.0.

into  production.mysql.com:/usersnfs/jamppa/mysql-4.0


include/my_global.h:
  Auto merged
include/my_pthread.h:
  Auto merged
mysys/default.c:
  Auto merged
mysys/my_pthread.c:
  Auto merged
mysys/my_thr_init.c:
  Auto merged
mysys/thr_alarm.c:
  Auto merged
sql/mysqld.cc:
  Auto merged

Move get_thread_lib to mysys/my_pthread.c
Set 'thr_client_alarm' to signal number used by thr_alarm to give alarms


include/my_global.h:
  Fixed to be same as in 5.1
include/my_pthread.h:
  Move things around to be more in line with rest of code
mysys/default.c:
  Fixed two wrong pointer incrementations.
mysys/my_pthread.c:
  Cleanup: Use variable thr_client_alarm
mysys/my_thr_init.c:
  Detect thread library at startup.
  Set also thr_client_alarm signal here, so that we get
  it in init_signals() in mysqld
mysys/thr_alarm.c:
  Set thr_client_alarm depending on which thread library we are using
sql/mysqld.cc:
  Move get_thread_lib to mysys/my_pthread.c

Move get_thread_lib to mysys/my_pthread.c
Set 'thr_client_alarm' to signal number used by thr_alarm to give alarms



include/my_global.h:
  Fixed to be same as in 5.1
include/my_pthread.h:
  Move things around to be more in line with rest of code
include/thr_alarm.h:
  extern of thr_client_alarm
mysys/default.c:
  Fixed two wrong pointer incrementations.
mysys/my_pthread.c:
  Cleanup: Use variable thr_client_alarm
mysys/my_thr_init.c:
  Detect thread library at startup
mysys/thr_alarm.c:
  Set thr_client_alarm depending on which thread library we are using
sql/mysqld.cc:
  Move get_thread_lib to mysys/my_pthread.c

Fix to check library in use during runtime.
Fix for Bug#16995, "idle connections not being killed due to timeout when NPTL is used".


BUILD/SETUP.sh:
  To avoid warnings during compilation.
configure.in:
  Fixed configure so that it can correctly detect
  between NPTL and Linuxthreads.
include/my_global.h:
  Fix for Linuxthreads.
include/my_pthread.h:
  Added defines for different libraries that can be detected.
  Currently only 'other', 'nptl', and 'lt' (linuxthreads) are
  being used.
  
  changed sigset() and signal() to my_sigset() and my_signal()
include/thr_alarm.h:
  Removed defines for Linuxthreads. This is now detected during
  runtime and handled in the thr_alarm.c
mysys/my_pthread.c:
  Runtime check for library.
mysys/thr_alarm.c:
  Runtime checks for library and corresponding
  signals.
sql/mysqld.cc:
  Added function for detecting thread library in use
  during start-up.
  
  THR_KILL_SIGNAL removed, setting signals during runtime.

into  trift2.:/MySQL/M40/mysql-4.0

into  mysql.com:/data0/mysqldev/my/mysql-4.0-15815

into  trift2.:/MySQL/M40/mysql-4.0

into  quadxeon.mysql.com:/benchmarks/ext3/TOSAVE/tsmith/bk/g40

no future build of it will include Berkeley DB:
Remove it from the Windows VC++ project files.

into  kpdesk.mysql.com:/home/thek/dev/mysql-4.0

mysys/mf_iocache.c:
  Exclude
mysys/my_seek.c:
  Exclude

into  moonlight.home:/home/tomash/src/mysql_ab/mysql-4.0-bug23443

           server

The problem was that when memory was exhausted HEAP engine could crash
(GROUP BY uses HEAP TABLE).  Alternatively, if SET was used, it could
report an error "You may only use constant expressions with SET" instead
of "Out of memory (Needed NNNNNN bytes)".

The solution is:
 - pass MY_WME to (some) calls to my_malloc() to get correct message.
 - fix heap_write() so that the first key is skipped during cleanup
   on ENOMEM because it wasn't inserted and doesn't have to be
   deleted.

No test case is provided because we can't test out-of-memory behaviour
in our current test framework.


heap/hp_block.c:
  If allocation fails, write an error message.
heap/hp_write.c:
  On ENOMEM, skip the first key in cleanup, as it wasn't inserted yet.
sql/item_func.cc:
  Add MY_WME so that OOM error will be reported.

- "make_binary_distribution" accepts a dummy "--platform=" argument.

- "MySQL-shared-compat.spec" uses a "version40" define symbol internally.


scripts/make_binary_distribution.sh:
  Newer versions of the release build tools call this with a "--platform=" argument
  which we seem not to need in 4.0, but which makes the tool crash (happened on SCO).
  
  Rather than add another version check into the build tools, just accept a "--platform="
  argument and ignore it, just give a message.
support-files/MySQL-shared-compat.spec.sh:
  The current version of "Do-shared-compat" needs two digits to identify the release families
  (to differ between 4.0 and 4.1), so the variable "version4" must get renamed to "version40".

- Bug #15815: Very poor performance with multiple queries running concurrently
- Bug #22868: 'Thread thrashing' with > 50 concurrent conns under an upd-intensive workloadw

This is a patch from an e-mail; it is not included in an InnoDB snapshot.

into  mysql.com:/Users/kent/mysql/bk/mysql-4.0

  Added LICENSE.mysql, removed LICENSE.doc README.NW.
  Removed obselete section about MySQLEULA.txt and README.NW.
README:
  Added reference to the EXCEPTIONS-CLIENT file.
  Changed reference to the commercial license file.
  Corrected references into chapters in the manual.
.del-MySQLEULA.txt~4a1afd9284f9be5a:
  Delete: Docs/MySQLEULA.txt


README:
  Added reference to the EXCEPTIONS-CLIENT file.
  Changed reference to the commercial license file.
  Corrected references into chapters in the manual.
BitKeeper/deleted/.del-MySQLEULA.txt~4a1afd9284f9be5a:
  Delete: Docs/MySQLEULA.txt
scripts/make_binary_distribution.sh:
  Added LICENSE.mysql, removed LICENSE.doc README.NW.
  Removed obselete section about MySQLEULA.txt and README.NW.

into  kpdesk.mysql.com:/home/thek/dev/mysql-4.0

into  kpdesk.mysql.com:/home/thek/dev/mysql-4.0-maint

- The io cache flag seek_not_done was not set properly in the 
  reinit_io_cache function call and this led my_seek to be called
  desipite an invalid file handle.
- Added a test in reinit_io_cache to ensure we have a valid file 
  handle before setting seek_not_done flag.


mysys/mf_iocache.c:
  Added a test to only trigger my_seek function calls if we have
  a valid file descriptor.
mysys/my_seek.c:
  Refactored incomplete condition into an assertion. This also ensures
  that variable newpos is initialized properly.

into  siva.hindu.god:/usr/home/tim/m/bk/tmp/mrgOct16/40


mysys/my_read.c:
  Manual merge

into  moonlight.intranet:/home/tomash/src/mysql_ab/mysql-4.0

into  siva.hindu.god:/usr/home/tim/m/bk/40

into  chilla.local:/home/mydev/mysql-4.0-bug20719

Deletes on a big index could crash the index when it needs to
shrink.

Put a forgotten negation operator in.

No test case. It is too big for the test suite. And it does not
work with 4.0, only with higher versions. It is attached to the
bug report.


myisam/mi_delete.c:
  Bug#22384 - DELETE FROM table causes "Incorrect key file for table"
  Put a negation operator ('!') before _mi_get_last_key() in del().
  It returns NULL on error, non-NULL on success.

into  chilla.local:/home/mydev/mysql-4.0-bug20719

into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-4.0-maint

            "concurrent insert"
After merge fix.

into  chilla.local:/home/mydev/mysql-4.0-bug14400


mysql-test/r/myisam.result:
  Auto merged
myisam/mi_rkey.c:
  Bug#14400 - Query joins wrong rows from table which is subject of
              "concurrent insert"
  Manual merge
mysql-test/t/myisam.test:
  Bug#14400 - Query joins wrong rows from table which is subject of
              "concurrent insert"
  Manual merge

into  chilla.local:/home/mydev/mysql-4.0-bug14400


myisam/mi_rkey.c:
  Bug#14400 - Query joins wrong rows from table which is subject of
              "concurrent insert"
  Manual merge

          (back-port to 4.0)

Socket timeouts in client library were used only on Windows.
Additionally, in 4.0 write operations erroneously set read timeout.

The solution is to use socket timeouts in client library on all
systems were they are supported, and to differentiate between read
and write timeouts.

No test case is provided because it is impossible to simulate network
failure in current test suite.


include/violite.h:
  Add argument to vio_timeout() to determine which timeout should be set:
  for read (false) or for write (true).
libmysqld/lib_vio.c:
  Add argument to vio_timeout() to determine which timeout should be set:
  for read (false) or for write (true).
sql/net_serv.cc:
  Add argument to vio_timeout() to determine which timeout should be set:
  for read (false) or for write (true).
vio/viosocket.c:
  Add argument to vio_timeout() to determine which timeout should be set:
  for read (false) or for write (true).
  Implement socket timeouts on POSIX systems.

- Fix my_read/my_write to handle return values from read/write correctly
- Add debugging 'deprecated function' warning to my_lread/my_lwrite
- Add debugging 'error, read/write interrupt not handled' warning to my_quick_read/my_quick_write

There is no test case associated with these changes.  However, this is a conservative change,
and no repeatable test case is available.


mysys/my_lread.c:
  Warn about using deprecated function.
mysys/my_lwrite.c:
  Warn about using deprecated function.
mysys/my_pread.c:
  Handle interrupted read() or write() (EINTR) properly
mysys/my_quick.c:
  Warn about interrupted read() or write(), which is not
  handled by my_quick_read() or my_quick_write().
mysys/my_read.c:
  Handle interrupted read() (EINTR) properly
mysys/my_write.c:
  Handle interrupted write() (EINTR) properly

            "concurrent insert"
Additional fix for full keys and test case.


myisam/mi_rkey.c:
  Bug#14400 - Query joins wrong rows from table which is subject of
              "concurrent insert"
  Additional fix for full keys.
mysql-test/r/myisam.result:
  Bug#14400 - Query joins wrong rows from table which is subject of
              "concurrent insert"
  Additional results.
mysql-test/t/myisam.test:
  Bug#14400 - Query joins wrong rows from table which is subject of
              "concurrent insert"
  Additional test case.

into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-4.0-maint

into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-4.0-maint

	event' from master"

Since there is no repeatable test case, and this is obviously wrong, this is
the most conservative change that might possibly work.  

The syscall  read()  wasn't checked for a negative return value for an
interrupted read.  The kernel  sys_read()  returns -EINTR, and the "library" 
layer maps that to return value of -1 and sets  errno  to EINTR.  It's 
impossible (on Linux) for  read()  to set errno EINTR without the return 
value being -1 .

So, if we're checking for EINTR behavior, we should not require that the
return value be zero.


mysys/my_read.c:
  The read() syscall should check for negative one, since that (usually) signals
  errors (like being interrupted) and zero (usually) signals end-of-file .

            subject of "concurrent insert"
Better fix by Monty: "The previous bug fix didn't work
when using partial keys."


mysql-test/r/myisam.result:
  Bug#14400 - Query joins wrong rows from table which is
              subject of "concurrent insert"
  Added test result
mysql-test/t/myisam.test:
  Bug#14400 - Query joins wrong rows from table which is
              subject of "concurrent insert"
  Added test case