Added support for symlinked tables.

myisamchk: Don't force a repair if the only problem was that the
open count wasn't correct.
Added missing error messages.


include/my_sys.h:
  Cleanup comments
libmysql/Makefile.shared:
  Added symlink library.
myisam/mi_check.c:
  Added support for symlinked tables
myisam/mi_delete_table.c:
  Added support for symlinked tables
myisam/mi_open.c:
  Added support for symlinked tables
myisam/mi_rename.c:
  Added support for symlinked tables
myisam/myisamchk.c:
  Added support for symlinked tables.
  Don't force a repair if the only problem was that the open count
  wasn't correct.
pstack/bucomm.c:
  use mkstemp() instead of mytemp()
sql/ha_myisam.cc:
  Added support for symlinked tables
sql/ha_myisam.h:
  Added support for symlinked tables
sql/ha_myisammrg.cc:
  Added support for symlinked tables
sql/handler.cc:
  Added support for symlinked tables
sql/handler.h:
  Added support for symlinked tables
sql/lex.h:
  Added support for symlinked tables
sql/share/czech/errmsg.txt:
  Added missing error messages
sql/share/danish/errmsg.txt:
  Added missing error messages
sql/share/dutch/errmsg.txt:
  Added missing error messages
sql/share/estonian/errmsg.txt:
  Added missing error messages
sql/share/french/errmsg.txt:
  Added missing error messages
sql/share/german/errmsg.txt:
  Added missing error messages
sql/share/greek/errmsg.txt:
  Added missing error messages
sql/share/hungarian/errmsg.txt:
  Added missing error messages
sql/share/italian/errmsg.txt:
  Added missing error messages
sql/share/japanese/errmsg.txt:
  Added missing error messages
sql/share/korean/errmsg.txt:
  Added missing error messages
sql/share/norwegian-ny/errmsg.txt:
  Added missing error messages
sql/share/norwegian/errmsg.txt:
  Added missing error messages
sql/share/polish/errmsg.txt:
  Added missing error messages
sql/share/portuguese/errmsg.txt:
  Added missing error messages
sql/share/romanian/errmsg.txt:
  Added missing error messages
sql/share/russian/errmsg.txt:
  Added missing error messages
sql/share/slovak/errmsg.txt:
  Added missing error messages
sql/share/spanish/errmsg.txt:
  Added missing error messages
sql/share/swedish/errmsg.OLD:
  Added missing error messages
sql/share/swedish/errmsg.txt:
  Added missing error messages
sql/sql_db.cc:
  Added support for symlinked tables
sql/sql_parse.cc:
  Added support for symlinked tables
sql/sql_table.cc:
  Added support for symlinked tables with ALTER TABLE
sql/sql_yacc.yy:
  Added option to create symlinked tables.

sql/handler.h

@@ -142,6 +142,7 @@ typedef struct st_ha_create_information
   ulonglong max_rows,min_rows;
   ulonglong auto_increment_value;
   char *comment,*password;
+  char *data_file_name, *index_file_name;
   uint options;					/* OR of HA_CREATE_ options */
   uint raid_type,raid_chunks;
   ulong raid_chunksize;