creating an environment variable is handled directly from the perl code.  

but having it on tmpfs gives a big speedup. 


mysql-test/mysql-test-run.pl:
  Make use of opt_mem and let 4.1 allow vardir to be set. Still relies on the var/ directory
  but having it on tmpfs gives a big speedup.

mysql-test/mysql-test-run.pl:
  Use same location for slave-load-tmpdir in all versions
mysql-test/mysql-test-run.sh:
  Use same location for slave-load-tmpdir in all versions
mysql-test/r/rpl_loaddata.result:
  Update result after changing slave-load-tmpdir to use a shorter path
mysql-test/r/rpl_loaddatalocal.result:
  Update result after changing slave-load-tmpdir to use a shorter path
mysql-test/r/rpl_log.result:
  Update result after changing slave-load-tmpdir to use a shorter path
mysql-test/t/rpl_loaddatalocal.test:
  Use MYSQLTEST_VARDIR when specifying path to load from(backport from 5.0)
  Use new command "remove_file" instead of s"ystem rm"

- When --record is passed to mysqltest the whole testcase should be executed
as it normally is while the output form the test is acumulating
in ds_res. When test has finished ds_res should simply be written to the
specified result file(if any) instead of comapring it against the result file.
Simplify handling of --require and also the cecking of result files by splitting
check_result function into one  function 'check_require' that is specialised in
checking require's and leave 'check_result' to do just that.
- "mysqltest --record" has been considered unsafe, but with this really simple
logic, it should be safe to use.


client/mysqltest.c:
  When --record is passed to mysqltest the whole testcase should be executed
  as it normally is while the output form the test is acumulating
  in ds_res. When test has finished ds_res should simply be written to the
  specified result file(if any) instead of comapring it against the result file.
  Simplify handling of --require and also the cecking of result files by splitting
  check_result function into one  function 'check_require' that is specialised in
  checking require's and leave 'check_result' to do just that.

from var/ to a tmpfs area and thereby speed up the execution of the testsuite
 significantly


mysql-test/mysql-test-run.pl:
  Add new option --mem to mysql-test-run.pl. It will automatically setup a symlink
  from var/ to a tmpfs area and thereby speed up the execution of the testsuite
  significantly

Some variable names in 5.1 is soo long that there is no space inbetween 
name and value. Outputing a warning about it, as that should probably be fixed.
At least one space should be put between the name and value.

Improve check of wheter test case need slave cluster

Set the environment variable NDB_STATUS_OK to indicate that cluster is installed ok. This is actually not needed for this script as it will
skip ndb tests if cluster install failed. But provided for compatibility


mysql-test/include/have_ndb.inc:
  Revert

I.e take advantage of the fact that a # comment is always terminated by a new line 
Add tests for the above


client/mysqltest.c:
  Improve "check_eol_junk" to detect junk although there are multi line comments in the way.
  I.e take advantage of the fact that a # comment is always terminated by a new line
mysql-test/r/mysqltest.result:
  Update resut file
mysql-test/t/mysqltest.test:
  Add test for improved check_eol_junk

Fix detection of debug binaries. If mysqld ouputs "debug xx" in the variable list it's a debug binary

 - add missing DBUG_RETURN
 - Change type of st_error->code to uint, that should be more than enough
   to hold the error numbers between 1000 and around 2000

Use replace_regex to mask the output of file_id= in "show binlog events" that depends on previous tests
What is this? replace_regex in 4.1! :)


mysql-test/r/rpl_charset.result:
  Use replace_regex to mask the output of file_id= in "show binlog events" that depends on previous tests
mysql-test/t/rpl_charset.test:
  Use replace_regex to mask the output of file_id= in "show binlog events" that depends on previous tests

Set slave_load_path to ../../var/tmp in version prior to 5.0 to be compatible with mysql-test-run.sh

Create the mysqld.spec file with a unique name in mysql-test dir, $opt_var_dir haven't been created yet

Add paths for ndb binaries
Some more backport issues


mysql-test/include/have_ndb.inc:
  Remove the check for NDB_STATUS_OK, handled by mysql-test-run.pl

 -Add support for detecting version and features from mysqld binary
 - Autodetect netware
 - Disable some features not available below 5.0
 - Cleanup executable_setup to look for one executable at a time, only llok for the ones that are needed based on the selected testcases and settings


mysql-test/lib/mtr_cases.pl:
  Backport from 5.1
mysql-test/lib/mtr_io.pl:
  Backport from 5.1
  Add new function mtr_appendfile_to_file
mysql-test/lib/mtr_misc.pl:
  Backport from 5.1
mysql-test/lib/mtr_process.pl:
  Backport from 5.1
mysql-test/lib/mtr_report.pl:
  Backport from 5.1
mysql-test/mysql-test-run.pl:
  Add support for detecting version and features from mysqld binary
  Autodetect netware
  Disable some features not available below 5.0
  Cleanup executable_setup to look for one executable at a time, only llok for the ones that are needed based on the selected testcases and settings
mysql-test/r/mysqltest.result:
  Update result
mysql-test/lib/mtr_im.pl:
  New BitKeeper file ``mysql-test/lib/mtr_im.pl''
mysql-test/lib/mtr_stress.pl:
  New BitKeeper file ``mysql-test/lib/mtr_stress.pl''

Add possibility to send warnings about suspicious commands in .test file to <result_file_name>.warnings file
Move detection of "parsing enabled" to after command has been read.
Cleanup parsing enabled/disabled

- Change con_host to ds_connection_name.str


client/mysqltest.c:
  Change con_host to ds_connection_name.str

mysql-test/r/init_file.result:
  Add new file init_file.result
mysql-test/r/mysql_client_test.result:
  Add new file mysql_client_test.result

 - ie. backport from 5.1
 - also update testcase error dected by new version


mysql-test/include/show_msg.inc:
  BitKeeper file /home/msvensson/mysql/same_tools/my41-same_tools/mysql-test/include/show_msg.inc
mysql-test/include/show_msg80.inc:
  BitKeeper file /home/msvensson/mysql/same_tools/my41-same_tools/mysql-test/include/show_msg80.inc
BitKeeper/deleted/.del-rpl_chain_temp_table.test:
  Delete: mysql-test/t/rpl_chain_temp_table.test
BitKeeper/deleted/.del-rpl_chain_temp_table.result:
  Delete: mysql-test/r/rpl_chain_temp_table.result
BitKeeper/deleted/.del-rpl_failsafe.result:
  Delete: mysql-test/r/rpl_failsafe.result
BitKeeper/deleted/.del-rpl_failsafe.test:
  Delete: mysql-test/t/rpl_failsafe.test
BitKeeper/deleted/.del-rpl_heap.test:
  Delete: mysql-test/t/rpl_heap.test
BitKeeper/deleted/.del-rpl_heap.result:
  Delete: mysql-test/r/rpl_heap.result
BitKeeper/deleted/.del-rpl000018.result:
  Delete: mysql-test/r/rpl000018.result
BitKeeper/deleted/.del-rpl000018.test:
  Delete: mysql-test/t/rpl000018.test
client/Makefile.am:
  Link mysqltest with mysys/my_copy.c
client/mysqltest.c:
  Update mysqltest to latest version
mysql-test/include/have_multi_ndb.inc:
  Remove old syntax "@filename" in favor of "--require filename"
mysql-test/include/master-slave.inc:
  Remove old syntax "@filename" in favor of "--require filename"
mysql-test/include/ps_query.inc:
  Remove the comment about no output now when it does.
mysql-test/r/check.result:
  Update output from --send
mysql-test/r/connect.result:
  Update result file for connect test after backport form 5.1
mysql-test/r/flush.result:
  Update output from --send
mysql-test/r/flush_block_commit.result:
  Update output from --send
mysql-test/r/func_misc.result:
  Update output from --send
mysql-test/r/grant2.result:
  Update output from --send
mysql-test/r/handler.result:
  Update output from --send
mysql-test/r/kill.result:
  Update output from --send
mysql-test/r/lock_multi.result:
  Update output from --send
mysql-test/r/mix_innodb_myisam_binlog.result:
  Update output from --send
mysql-test/r/mysqltest.result:
  Update mysqltest.result after backport
mysql-test/r/ps_2myisam.result:
  Update result as the output from query is now printed
mysql-test/r/ps_3innodb.result:
  Update result as the output from query is now printed
mysql-test/r/ps_4heap.result:
  Update result as the output from query is now printed
mysql-test/r/ps_5merge.result:
  Update result as the output from query is now printed
mysql-test/r/ps_6bdb.result:
  Update result as the output from query is now printed
mysql-test/r/ps_7ndb.result:
  Update result as the output from query is now printed
mysql-test/r/rename.result:
  Update output from --send
mysql-test/r/rpl000001.result:
  Update output from --send
mysql-test/r/rpl_error_ignored_table.result:
  Update output from --send
mysql-test/r/rpl_master_pos_wait.result:
  Update output from --send
mysql-test/r/subselect.result:
  Update result file after adding missing ;
mysql-test/r/synchronization.result:
  Update output from --send
mysql-test/r/type_blob.result:
  Update result file after adding missing ;
mysql-test/t/connect.test:
  Backport test from 5.1
mysql-test/t/init_file.test:
  Update test so something is printed
mysql-test/t/mysql_client_test.test:
  Update test so result is sent to file and something is printed
mysql-test/t/mysqltest.test:
  Backport latest mysqltest.test file
mysql-test/t/ps.test:
  Move the --replace_column statement to just before the statetement it should replace
mysql-test/t/ps_1general.test:
  Move the --replace_column statement to just before the statetement it should replace
mysql-test/t/ps_grant.test:
  Remove the $DB, no other test uses it
mysql-test/t/rpl_flush_tables.test:
  Fetch $SERVER_VERSION from the db server
mysql-test/t/rpl_trunc_temp.test:
  Remove the selection of connection master after it's been disconnected already
mysql-test/t/subselect.test:
  Add missing ;
mysql-test/t/type_blob.test:
  Add missing ;

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

BitKeeper/etc/ignore:
  Added mysql-test/mtr to the ignore list

into  rama.(none):/home/jimw/my/mysql-4.1-21288

into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-4.1-maint

into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-4.1-maint


tests/mysql_client_test.c:
  Auto merged

single file is a bad practice.  


tests/mysql_client_test.c:
  Replace literal characters which don't make sense in UTF8 with ubiquitously-
  understood numbers.

into  maint2.mysql.com:/data/localhome/tsmith/bk/41

into  maint2.mysql.com:/data/localhome/tsmith/bk/41


BUILD/SETUP.sh:
  Auto merged

into  zippy.cornsilk.net:/home/cmiller/work/mysql/bug04053/my41-bug04053


mysys/my_read.c:
  Auto merged

	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 .