Fix a race condition that could cause the assertion space->n_pending_flushes == 0 to fail in fil0fil.c, in fil_space_free(), in DROP TABLE or in ALTER TABLE

into poseidon.ndb.mysql.com:/home/tomas/mysql-4.1

corrected possible unalignment in NdbRecAttr access methods

into mysql.com:/home/timka/mysql/src/4.1-virgin

  Fix bug #8021 :Windows error number 87 with multiple tablespaces after mysqld restart; still has to be tested on Windows that this now works

  Fix bug #7831: ALTER TABLE ... ADD CONSTRAINT PRIMARY KEY ... complained about bad foreign key definition

into mysql.com:/home/timka/mysql/src/4.1-dbg

into hundin.mysql.fi:/home/heikki/mysql-4.1

SHOW KEYS FROM t1 now displays number of characters in Sub_part,
not number of bytes, to be compatible with SHOW CREATE TABLE.

  Make sure to ship error code in system error signal

into hundin.mysql.fi:/home/heikki/mysql-4.1

into mysql.com:/Users/kent/mysql/bk/mysql-4.1-perl

into mysql.com:/Users/kent/mysql/bk/mysql-4.1-perl

  Bug#7834 Illegal mix of collations in IN operator
  IN was the first function supporting 
  character set convertion.
  agg_arg_charsets() was written afterwards,
  which is more flexible.
  Now IN just reuses this function.

into mysql.com:/home/jonas/src/mysql-4.1

  release connections when last op was simple read

  environment (using "build" on SUSE Linux)

into mysql.com:/space/my/mysql-4.1

into mysql.com:/home/jonas/src/mysql-4.1

  Minor fix after character set conversion.

into mysql.com:/home/jonas/src/mysql-4.1

  Add SJIS version of Japanese error messages.
  Windows version should include this new file,
  instead of the EUC-JP version.

  new file

into mysql.com:/dbdata/psergey/mysql-4.1-bug7885

into mysql.com:/home/jimw/my/mysql-4.1-clean

(Simpler fix than last commit -- no need to mess with base_cxxflags.)

into mysql.com:/space/my/mysql-4.1

This patch collects all previous patches into one.

The main problem was due to that there is are two variables -
dflt_key_cache and sql_key_cache with have more or less duplicate
function. The reson for the bug was that the default value in the key
cache hash was set to dflt_key_cache, then sql_key_cache was set to a
new key cache object, and then dflt_key_cache was set to sql_key_cache
which was different from the dflt_key_cache_var. After sending SIGHUP,
the server was using the original default value for the key cache hash,
which was different from the actual key cache object used for the
default key cache.

into mysql.com:/home/jonas/src/mysql-4.1

into poseidon.ndb.mysql.com:/home/tomas/mysql-4.1

  remove usage of compiler supplied <new> and instead
  impl. own inlined placement new

  when using shm transporter, set sigmask on each thread using pthread_sigmask

into mysql.com:/home/jimw/my/mysql-4.1-clean

into sinisa.nasamreza.org:/mnt/work/mysql-4.1