weird compile errors)

into mysql.com:/usr/home/bar/mysql-4.1

  --with-charset=binary didn't really work after my previous change.

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

into mysql.com:/usr/home/bar/mysql-4.1

  rpl_charset failed on  Linux/AMD64.

into brandersnatch.localdomain:/home/dlenev/src/mysql-4.1-tz-am

into mysql.com:/home/pem/work/mysql-4.1

into brandersnatch.localdomain:/home/dlenev/src/mysql-4.1-tz-am

mysql_tzinfo_to_sql converter was moved to extra/ directory and its build was made 
compatible with older automake versions.

test suite fixed.

into brandersnatch.localdomain:/home/dlenev/src/mysql-4.1-bg4200

Now ESCAPE in LIKE will accept not only string literal but constant 
delimited expression.

into sanja.is.com.ua:/home/bell/mysql/bk/work-regexp-4.1

into sanja.is.com.ua:/home/bell/mysql/bk/work-insert-4.1

into mysql.com:/usr/home/bar/mysql-4.1

  ./configure --with-charset=binary
  is now possible.

into gw.mysql.r18.ru:/usr/home/ram/work/4.1.b4102

into brandersnatch.localdomain:/home/dlenev/src/mysql-4.1-tz-cleanup

on many platforms (the other option was providing portable setenv() replacement).

  Drop t2 in the beginning.
  ,

 statement": check that statement is not null when accessing it's name.

into gw.mysql.r18.ru:/usr/home/ram/work/4.1.b4198

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

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

   requested

into brandersnatch.localdomain:/home/dlenev/src/mysql-4.1-tz-cleanup

Now we are using time zone abbreviations in debug builds or in utlities only.
Tried to remove warnings generated by compiler by using more proper types for
members of time zone describing structures. Removed unused variables. 
Fixed test_time to be able to build on FreeBSD without much problems.
Portability fix: resolved ambiguity of abs() function.