ix compilition for computer in a previous timezone

Build-tools/Do-compile:
  Fix compilition for computer in a previous timezone
sql/net_serv.cc:
  Added comment
sql/sql_parse.cc:
  Cleanup

Build-tools/Do-compile

@@ -111,6 +111,8 @@ safe_cd($ver);
 if ($opt_stage <= 1)
 {
   $opt_config_options.=" --with-low-memory" if ($opt_with_low_memory);
+  # Fix files if this is in another timezone than work.mysql.com
+  log_system("touch *");
   unlink("config.cache");
   log_system("$make clean") if ($opt_use_old_distribution);
   if ($opt_static_server)

sql/net_serv.cc

@@ -177,7 +177,7 @@ static my_bool net_realloc(NET *net, ulong length)
 void net_clear(NET *net)
 {
 #ifndef EXTRA_DEBUG
-  int count;
+  int count;					// One may get 'unused' warning
   bool is_blocking=vio_is_blocking(net->vio);
   if (is_blocking)
     vio_blocking(net->vio, FALSE);

sql/sql_parse.cc

@@ -174,7 +174,6 @@ static bool check_user(THD *thd,enum_server_command command, const char *user,
 */
 
 static HASH hash_user_connections;
-static DYNAMIC_ARRAY  user_conn_array;
 extern  pthread_mutex_t LOCK_user_conn;
 
 struct  user_conn {