- make the 'dist-hook' from top-level Makefile work again.
  - we can find my_print_defaults from --basedir by parsing command
    line arguments prior to running my_print_defaults.
  - take advantage of additional command line parsing and allow the
    --no-defaults etc arguments to work anywhere rather than having
    to be the first argument.
  - find SQL files either from binary archive or source install.
  - consolidate and tidy code and error messages.

  Fix error in previous change, correct --language argument.

available and reduce the chance of failure.  This should fix bug#28585
which is caused by the script being quite random in how it finds files it
requires and not giving very good feedback to the user about what went
wrong.

Also update make_binary_distribution so that it provides the correct path
to the required SQL scripts when generating mysql_install_db.  The script
only previously worked because of the permissive behaviour which looked
around the current working directory before the "correct" location.  This
could lead to severe problems if the user happened to run the script from
a location which contained older or even broken copies of the SQL scripts.

We now require either a complete binary release (and the mysql_install_db
script ran from inside the extracted archive), or an installed compiled
tree, as this is the only way we can be sure everything that we need is
available and ready to run.

While working on this fix, also clean up the mysql_install_db script a lot
to make it simpler, easier to read, and hopefully less prone to bugs in
the future.

into  mysql.com:/home/kent/bk/tmp3/mysql-5.0-build

into  moonbone.local:/mnt/gentoo64/work/29898-bug-5.0-opt-mysql

into  trift-lap.none:/MySQL/M50/push-5.0

into  pippilotta.erinye.com:/shared/home/df/mysql/build/mysql-5.0-build

into  gleb.loc:/home/uchum/work/bk/5.0-opt

into  pippilotta.erinye.com:/shared/home/df/mysql/build/mysql-5.0.46

The Item_date_typecast::val_int function doesn't reset null_value flag.
This makes all values that follows the first null value to be treated as nulls
and led to a wrong result.

Now the Item_date_typecast::val_int function correctly sets the null_value flag
for both null and non-null values.

into  trift2.:/MySQL/M50/push-5.0

into  moonbone.local:/mnt/gentoo64/work/29850-bug-5.0-opt-mysql

a temporary table.

The result string of the Item_func_group_concat wasn't initialized in the 
copying constructor of the Item_func_group_concat class. This led to a
wrong charset of GROUP_CONCAT result when the select employs a temporary
table.

The copying constructor of the Item_func_group_concat class now correctly
initializes the charset of the result string.

into  mysql.com:/home/hf/work/29687/my50-29687

into  mysql.com:/home/hf/work/29687/my50-29687

into  bk-internal.mysql.com:/data0/bk/tsmith-tmp/mysql-5.0-maint

into  gleb.loc:/home/uchum/work/bk/5.0-opt

by renaming "include/md5.h" to "include/my_md5.h".

Fixes bug#14151.

  i5 compatibility

into  gleb.loc:/home/uchum/work/bk/5.0-opt

For each view the mysqldump utility creates a temporary table
with the same name and the same columns as the view 
in order to satisfy views that depend on this view.
After the creation of all tables, mysqldump drops all
temporary tables and creates actual views.
However, --skip-add-drop-table and --compact flags disable
DROP TABLE statements for those temporary tables. Thus, it was
impossible to create the views because of existence of the
temporary tables with the same names.

  Allow to set mysqld exe suffix

table (datadir)
Set errno when retunring an error in my_create_with_symlink.

into  trift2.:/MySQL/M50/push-5.0

into  trift2.:/MySQL/M50/push-5.0

into  ramayana.hindu.god:/home/tsmith/m/bk/maint/50

into  ramayana.hindu.god:/home/tsmith/m/bk/maint/41

Fixing bug#25486:  mysqld_multi.server.sh missing from builds

into  mysql.com:/home/psergey/mysql-5.0-bug29740

'/' and '\' in path delimiters:
- Fix this by creating new handler with exactly the same path line as
  was passed to ha_create/ha_open.

Fixing bug#21023:  "mysql-stress-test.pl" missing in builds

into  bodhi.(none):/opt/local/work/mysql-5.0-runtime

  BUG#29382

into  sin.intern.azundris.com:/home/tnurnberg/27198/50-27198

into  sin.intern.azundris.com:/home/tnurnberg/27198/50-27198