Fix compilation failures on Windows caused by the patch for Bug#17199.

Fix a minor issue with Bug#16206 (bdb.test failed if the tree is compiled 
without blackhole).


include/my_sys.h:
  Change declaration of my_strdup_with_length to accept const char *,
  not const byte *: in 5 places out of 6 where this function is used,
  it's being passed char *, not byte *
mysql-test/r/bdb.result:
  Remove dependency on an optional engine (updated test results).
mysql-test/t/bdb.test:
  Remove dependency on an optional engine.
mysys/my_malloc.c:
  my_strdup_with_length: const byte * -> const char *
mysys/safemalloc.c:
  my_strdup_with_length: const byte * -> const char *
sql/ha_federated.cc:
  my_strdup_with_length: const byte * -> const char *
sql/log_event.cc:
  my_strdup_with_length: const byte * -> const char *
sql/set_var.cc:
  my_strdup_with_length: const byte * -> const char *
sql/sql_class.h:
  Change db_length type to uint from uint32 (see also table.h)
sql/table.h:
  Change the type of db_length to uint from uint32: LEX_STRING uses uint for 
  length, we need a small and consistent set of types to store length to 
  minimize cast and compile failures.

include/my_sys.h

@@ -157,7 +157,7 @@ extern gptr my_realloc(gptr oldpoint,uint Size,myf MyFlags);
 extern void my_no_flags_free(gptr ptr);
 extern gptr my_memdup(const byte *from,uint length,myf MyFlags);
 extern char *my_strdup(const char *from,myf MyFlags);
-extern char *my_strdup_with_length(const byte *from, uint length,
+extern char *my_strdup_with_length(const char *from, uint length,
 				   myf MyFlags);
 /* we do use FG (as a no-op) in below so that a typo on FG is caught */
 #define my_free(PTR,FG) ((void)FG,my_no_flags_free(PTR))

mysql-test/r/bdb.result

@@ -1930,7 +1930,7 @@ alter table t1 add primary key(a);
 drop table t1;
 set autocommit=1;
 reset master;
-create table bug16206 (a int) engine=         blackhole;
+create table bug16206 (a int);
 insert into bug16206 values(1);
 start transaction;
 insert into bug16206 values(2);
@@ -1938,7 +1938,7 @@ commit;
 show binlog events;
 Log_name	Pos	Event_type	Server_id	End_log_pos	Info
 f	n	Format_desc	1	n	Server ver: VERSION, Binlog ver: 4
-f	n	Query	1	n	use `test`; create table bug16206 (a int) engine=         blackhole
+f	n	Query	1	n	use `test`; create table bug16206 (a int)
 f	n	Query	1	n	use `test`; insert into bug16206 values(1)
 f	n	Query	1	n	use `test`; insert into bug16206 values(2)
 drop table bug16206;

mysql-test/t/bdb.test

@@ -1028,7 +1028,7 @@ set autocommit=1;
 let $VERSION=`select version()`;
 
 reset master;
-create table bug16206 (a int) engine=         blackhole;
+create table bug16206 (a int);
 insert into bug16206 values(1);
 start transaction;
 insert into bug16206 values(2);

mysys/my_malloc.c

@@ -83,7 +83,7 @@ char *my_strdup(const char *from, myf my_flags)
 }
 
 
-char *my_strdup_with_length(const byte *from, uint length, myf my_flags)
+char *my_strdup_with_length(const char *from, uint length, myf my_flags)
 {
   gptr ptr;
   if ((ptr=my_malloc(length+1,my_flags)) != 0)

mysys/safemalloc.c

@@ -525,7 +525,7 @@ char *_my_strdup(const char *from, const char *filename, uint lineno,
 } /* _my_strdup */
 
 
-char *_my_strdup_with_length(const byte *from, uint length,
+char *_my_strdup_with_length(const char *from, uint length,
 			     const char *filename, uint lineno,
 			     myf MyFlags)
 {

sql/ha_federated.cc

@@ -632,8 +632,7 @@ static int parse_url(FEDERATED_SHARE *share, TABLE *table,
   DBUG_PRINT("info", ("Length %d \n", table->s->connect_string.length));
   DBUG_PRINT("info", ("String %.*s \n", table->s->connect_string.length, 
                       table->s->connect_string.str));
-  share->scheme= my_strdup_with_length((const byte*)table->s->
-                                       connect_string.str, 
+  share->scheme= my_strdup_with_length(table->s->connect_string.str,
                                        table->s->connect_string.length,
                                        MYF(0));
 

sql/log_event.cc

@@ -3123,7 +3123,7 @@ Rotate_log_event::Rotate_log_event(THD* thd_arg,
                       llstr(pos_arg, buff), flags));
 #endif
   if (flags & DUP_NAME)
-    new_log_ident= my_strdup_with_length((const byte*) new_log_ident_arg,
+    new_log_ident= my_strdup_with_length(new_log_ident_arg,
                                          ident_len, MYF(MY_WME));
   DBUG_VOID_RETURN;
 }
@@ -3147,7 +3147,7 @@ Rotate_log_event::Rotate_log_event(const char* buf, uint event_len,
                      (header_size+post_header_len)); 
   ident_offset = post_header_len; 
   set_if_smaller(ident_len,FN_REFLEN-1);
-  new_log_ident= my_strdup_with_length((byte*) buf + ident_offset,
+  new_log_ident= my_strdup_with_length(buf + ident_offset,
                                        (uint) ident_len,
                                        MYF(MY_WME));
   DBUG_VOID_RETURN;

sql/set_var.cc

@@ -1133,7 +1133,7 @@ bool update_sys_var_str(sys_var_str *var_str, rw_lock_t *var_mutex,
   uint new_length= (var ? var->value->str_value.length() : 0);
   if (!old_value)
     old_value= (char*) "";
-  if (!(res= my_strdup_with_length((byte*)old_value, new_length, MYF(0))))
+  if (!(res= my_strdup_with_length(old_value, new_length, MYF(0))))
     return 1;
   /*
     Replace the old value in such a way that the any thread using

sql/sql_class.h

@@ -1300,7 +1300,7 @@ class THD :public Statement,
   pthread_t  real_id;
   uint	     tmp_table, global_read_lock;
   uint	     server_status,open_options,system_thread;
-  uint32     db_length;
+  uint       db_length;
   uint       select_number;             //number of select (used for EXPLAIN)
   /* variables.transaction_isolation is reset to this after each commit */
   enum_tx_isolation session_tx_isolation;

sql/table.h

@@ -599,7 +599,8 @@ typedef struct st_table_list
   thr_lock_type lock_type;
   uint		outer_join;		/* Which join type */
   uint		shared;			/* Used in multi-upd */
-  uint32        db_length, table_name_length;
+  uint          db_length;
+  uint32        table_name_length;
   bool          updatable;		/* VIEW/TABLE can be updated now */
   bool		straight;		/* optimize with prev table */
   bool          updating;               /* for replicate-do/ignore table */