merge mysql-next-mr --> mysql-5.1-rpl-merge

Conflicts:
  Text conflict in sql/log.cc
  Text conflict in sql/slave.cc
  Text conflict in sql/sql_base.cc

mysql-test/include/have_perfschema.inc

@@ -0,0 +1,20 @@
+# Copyright (C) 2010 Sun Microsystems, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; version 2 of the License.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+if (!`SELECT count(*) FROM information_schema.engines WHERE
+      (support = 'YES' OR support = 'DEFAULT') AND
+      engine = 'PERFORMANCE_SCHEMA'`){
+  skip Need performance schema compiled in;
+}

mysql-test/include/mysqld--help.inc

@@ -11,7 +11,8 @@ exec $MYSQLD_BOOTSTRAP_CMD --symbolic-links=0 --lower-case-table-names=1 --help
 
 perl;
   @skipvars=qw/basedir open-files-limit general-log-file log
-               log-slow-queries pid-file slow-query-log-file/;
+               log-slow-queries pid-file slow-query-log-file
+               datadir slave-load-tmpdir tmpdir/;
   @plugins=qw/innodb ndb ndbcluster safemalloc debug temp-pool ssl des-key-file
               thread-concurrency super-large-pages mutex-deadlock-detector/;
   @env=qw/MYSQLTEST_VARDIR MYSQL_TEST_DIR MYSQL_LIBDIR MYSQL_SHAREDIR/;