Automatic repair of MyISAM tables + portability fixes

Docs/manual.texi:
  Changes for 3.23 and change Ansi mode -> ANSI mode
include/my_base.h:
  Automatic repair of MyISAM tables
include/myisam.h:
  Automatic repair of MyISAM tables
myisam/ft_update.c:
  Portability fix
myisam/mi_check.c:
  Automatic repair of MyISAM tables
myisam/mi_open.c:
  Automatic repair of MyISAM tables
myisam/myisamchk.c:
  Allow one to combine check with --old-repair
myisam/sort.c:
  Fix for usage of IO_CACHE
mysys/charset.c:
  Portability fixes
mysys/default.c:
  Added --defaults-extra-dir
mysys/mf_tempfile.c:
  Portability fixes
mysys/my_init.c:
  Remove compiler warning
mysys/my_pread.c:
  Remove compiler warning
sql-bench/server-cfg.sh:
  New benchmark tests
sql-bench/test-insert.sh:
  New benchmark tests
sql/ha_myisam.cc:
  Automatic repair of MyISAM tables
sql/ha_myisam.h:
  Automatic repair of MyISAM tables
sql/handler.h:
  Automatic repair of MyISAM tables
sql/lock.cc:
  Add missing free
sql/log_event.cc:
  Portability fixes
sql/sql_base.cc:
  Automatic repair of MyISAM tables
sql/sql_select.h:
  Remove compiler warning
sql/sql_table.cc:
  Clean up intendent
sql/sql_yacc.yy:
  New syntax for CHECK
sql/table.cc:
  Automatic repair of MyISAM tables
sql/table.h:
  Automatic repair of MyISAM tables
BitKeeper/etc/logging_ok:
  Logging to logging@openlogging.org accepted

sql/table.h

@@ -92,6 +92,7 @@ struct st_table {
   my_bool db_low_byte_first;		/* Portable row format */
   my_bool locked_by_flush;
   my_bool locked_by_name;
+  my_bool crashed;
   Field *next_number_field,		/* Set if next_number is activated */
 	*found_next_number_field,	/* Set on open */
         *rowid_field;