Fixed compiler warnings (for linux and win32 and win64)

Fixed a couple of usage of not initialized warnings (unlikely cases)


client/mysqldump.c:
  Fixed compiler warnings from 'max' build
client/mysqltest.c:
  Removed compiler warnings
cmd-line-utils/readline/xmalloc.c:
  Fixed compiler warnings from 'max' build
extra/comp_err.c:
  Fixed compiler warnings from 'max' build
extra/yassl/include/openssl/ssl.h:
  Changed prototype for SSL_set_fd() to fix compiler warnings (and possible errors) on windows 64 bit
extra/yassl/include/socket_wrapper.hpp:
  Moved socket_t to ssl.h, to be able to removed compiler warnings on windows 64 bit
extra/yassl/src/ssl.cpp:
  Changed prototype for SSL_set_fd() to fix compiler warnings (and possible errors) on windows 64 bit
extra/yassl/taocrypt/src/integer.cpp:
  Fixed compiler warnings
include/my_global.h:
  Added my_offsetof() macro from 5.1 to get rid of compiler warnings
innobase/include/ut0byte.ic:
  Fixed compiler warnings on win64
innobase/include/ut0ut.ic:
  Fixed compiler warnings on win64
libmysql/libmysql.def:
  Fixed compiler warnings on win64
myisam/mi_packrec.c:
  Fixed compiler warnings on win64
myisam/myisamchk.c:
  Fixed compiler warnings from 'max' build
mysys/base64.c:
  Fixed compiler warnings on win64
mysys/mf_keycache.c:
  Fixed compiler warnings from 'max' build
mysys/my_getopt.c:
  Fixed compiler warnings from 'max' build
mysys/my_init.c:
  Fixed compiler warnings from 'max' build
mysys/my_thr_init.c:
  Fixed compiler warnings
mysys/ptr_cmp.c:
  Fixed compiler warnings from 'max' build
ndb/include/kernel/signaldata/DictTabInfo.hpp:
  Fixed compiler warnings
server-tools/instance-manager/mysql_connection.cc:
  Fixed compiler warnings
server-tools/instance-manager/mysqlmanager.cc:
  Fixed compiler warnings
sql/filesort.cc:
  Initalize variable that was used unitialized in error conditions
sql/ha_berkeley.cc:
  Moved get_auto_primary_key() here as int5store() gives (wrong) compiler warnings in win64
sql/ha_berkeley.h:
  Moved get_auto_primary_key() to ha_berkeley.cc
sql/ha_innodb.cc:
  Fixed compiler warnings
sql/item.cc:
  Fixed compiler warnings from 'max' build
sql/item_timefunc.cc:
  Fixed compiler warnings
sql/mysqld.cc:
  Fixed compiler warnings
sql/sql_acl.cc:
  Fixed compiler warnings from 'max' build
sql/sql_base.cc:
  Fixed compiler warnings from 'max' build
sql/sql_insert.cc:
  Initialize variable that may be used unitialized on error conditions (not fatal)
sql/sql_prepare.cc:
  Fixed compiler warnings from 'max' build
sql/sql_select.cc:
  Fixed compiler warnings
sql/sql_show.cc:
  Fixed compiler warnings
sql/udf_example.def:
  Fixed compiler warnings on win64
sql/unireg.cc:
  Initialize variable that may be used unitialized on error conditions
strings/ctype-ucs2.c:
  Fixed compiler warnings
strings/ctype-utf8.c:
  Fixed compiler warnings
strings/decimal.c:
  Fixed compiler warnings
support-files/compiler_warnings.supp:
  Ignore warnings from sql_yacc.cc that are hard to remove
  Ignore some not important warnings from windows 64 bit build
tools/mysqlmanager.c:
  Fixed compiler warnings

extra/comp_err.c

@@ -41,7 +41,9 @@ static char *NAMEFILE= (char*) "mysqld_ername.h";
 static char *STATEFILE= (char*) "sql_state.h";
 static char *TXTFILE= (char*) "../sql/share/errmsg.txt";
 static char *DATADIRECTORY= (char*) "../sql/share/";
+#ifndef DBUG_OFF
 static char *default_dbug_option= (char*) "d:t:O,/tmp/comp_err.trace";
+#endif
 
 /* Header for errmsg.sys files */
 uchar file_head[]= { 254, 254, 2, 1 };
@@ -402,6 +404,8 @@ static int parse_input_file(const char *file_name, struct errors **top_error,
   int rcount= 0;
   DBUG_ENTER("parse_input_file");
 
+  *top_error= 0;
+  *top_lang= 0;
   if (!(file= my_fopen(file_name, O_RDONLY | O_SHARE, MYF(MY_WME))))
     DBUG_RETURN(0);