Backport of the fix for bug #8143: A date with value 0 is treated as a NULL value

Update the binlog format parse routine to only be avaliable in 5.1 and allow for any binlog_format to be specified

Fix two memory leaks in mysql_client_test

Add comments
Deperlify

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

BUG#23427 incompatible ABI change in 5.0.26?
   - Use the icheck tool if avaliable and compare the current mysql.h to a version
controlled reference file 

Flush both stdout and stderr before abort'ing mysql_client_test

with error 1 and we are running with --force
The specific "analyze" code is enclosed in a .test file fwich can easily
be modified to be more advanced 

This fixes problem where --replace_result failed in rpl000015 because the MYSQL_TCP_PORT variable was "3306\r"

The vardir trick can only bge used on platforms with native symlinks - otherwise opt_vardir need to be set to default value.

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

As both ndb and im are components that may be disabled as well as the binaries may not exist. Look for 
their binaries in a separate function and produce test casea failures for the test thet needs these components

into  mysql.com:/usr/home/ram/work/bug20732/my41-bug20732

into  mysql.com:/usr/home/ram/work/bug20732/my41-bug20732

This can not be done in run_testcase_start_servers as embedded never starts a server
Add error if mysqld_start is called in embedded mode 

into  polly.local:/home/kaa/src/maint/m41-maint--07OGk

into  polly.local:/home/kaa/src/maint/m41-maint--07OGk

- compilation on the Alpha platform was broken because the Alpha-specific code was not updated after replacing the SIGRETURN_FRAME_COUNT constant with a variable

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

Add function mtr_exe_maybe_exists to look for binaries that is optional
Skip ndb support if it's a binary dist where mysqld supports ndb but there is no ndbd

to a value wich is not our default

commands and go directly to result file processing

into  example.com:/work/bug23379/my41-bug23379

  
The value taken to be shown in SHOW PROCESSLIST is not
initialized when THD is created and will be random for
unauthenticated connections.
  
To the documentor: Random value, instead of NULL, was shown,
in SHOW PROCESSLIST for still non-authenticated connections.

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

into  example.com:/work/bug23379/my41-bug23379

We miss some records sometimes using RANGE method if we have
partial key segments.
Example:
  Create table t1(a char(2), key(a(1)));
  insert into t1 values ('a'), ('xx');
  select a from t1 where a > 'x';
We call index_read() passing 'x' key and HA_READ_AFTER_KEY flag
in the handler::read_range_first() wich is wrong because we have
a partial key segment for the field and might miss records like 'xx'.

Fix: don't use open segments in such a case.

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

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

into  example.com:/work/bug23379/my41-bug23379