Merge with 4.1

BitKeeper/etc/logging_ok:
  auto-union
BitKeeper/deleted/.del-Makefile.am:
  Auto merged
BitKeeper/deleted/.del-Makefile.am~1:
  Delete: Docs/Images/Makefile.am
client/mysqltest.c:
  Auto merged
include/mysql.h:
  Auto merged
libmysql/libmysql.c:
  Auto merged
myisam/mi_check.c:
  Auto merged
mysql-test/r/grant.result:
  Auto merged
mysql-test/r/ps_1general.result:
  Auto merged
mysql-test/t/grant.test:
  Auto merged
mysql-test/t/mix_innodb_myisam_binlog.test:
  Auto merged
mysql-test/t/ps_1general.test:
  Auto merged
sql/field.cc:
  Auto merged
sql/ha_innodb.cc:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/share/french/errmsg.txt:
  Auto merged
sql/share/greek/errmsg.txt:
  Auto merged
sql/sql_acl.cc:
  Auto merged
sql/sql_table.cc:
  Auto merged
sql/time.cc:
  Auto merged
sql-common/my_time.c:
  Auto merged
sql/share/portuguese/errmsg.txt:
  Auto merged
sql/share/romanian/errmsg.txt:
  Auto merged
sql/share/serbian/errmsg.txt:
  Auto merged
sql/share/spanish/errmsg.txt:
  Auto merged
sql/share/swedish/errmsg.txt:
  Auto merged
configure.in:
  Merge with 4.0
mysql-test/r/mix_innodb_myisam_binlog.result:
  Merge with 4.0
mysys/default.c:
  Merge with 4.1 (to get new extension handling)
sql/log.cc:
  Merge with 4.0
tests/client_test.c:
  Merge with 4.1 (to get possibility to run any tests)

1 files changed, 18 insertions, 5 deletions

diff --git a/sql-common/my_time.c b/sql-common/my_time.c
index dc997921f74..5afa6ea2857 100644
--- a/sql-common/my_time.c
+++ b/sql-common/my_time.c
@@ -723,6 +723,10 @@ my_system_gmt_sec(const MYSQL_TIME *t, long *my_timezone, bool *in_dst_time_gap)
     I couldn't come up with a better way to get a repeatable result :(
 
     We can't use mktime() as it's buggy on many platforms and not thread safe.
+
+    Note: this code assumes that our time_t estimation is not too far away
+    from real value (we assume that localtime_r(tmp) will return something
+    within 24 hrs from t) which is probably true for all current time zones.
   */
   tmp=(time_t) (((calc_daynr((uint) t->year,(uint) t->month,(uint) t->day) -
 		  (long) days_at_timestart)*86400L + (long) t->hour*3600L +
@@ -735,7 +739,8 @@ my_system_gmt_sec(const MYSQL_TIME *t, long *my_timezone, bool *in_dst_time_gap)
   for (loop=0;
        loop < 2 &&
 	 (t->hour != (uint) l_time->tm_hour ||
-	  t->minute != (uint) l_time->tm_min);
+	  t->minute != (uint) l_time->tm_min ||
+          t->second != (uint) l_time->tm_sec);
        loop++)
   {					/* One check should be enough ? */
     /* Get difference in days */
@@ -745,15 +750,22 @@ my_system_gmt_sec(const MYSQL_TIME *t, long *my_timezone, bool *in_dst_time_gap)
     else if (days > 1)
       days= -1;
     diff=(3600L*(long) (days*24+((int) t->hour - (int) l_time->tm_hour)) +
-	  (long) (60*((int) t->minute - (int) l_time->tm_min)));
+          (long) (60*((int) t->minute - (int) l_time->tm_min)) +
+          (long) ((int) t->second - (int) l_time->tm_sec));
     current_timezone+= diff+3600;		/* Compensate for -3600 above */
     tmp+= (time_t) diff;
     localtime_r(&tmp,&tm_tmp);
     l_time=&tm_tmp;
   }
   /*
-    Fix that if we are in the not existing daylight saving time hour
-    we move the start of the next real hour
+    Fix that if we are in the non existing daylight saving time hour
+    we move the start of the next real hour.
+
+    This code doesn't handle such exotical thing as time-gaps whose length
+    is more than one hour or non-integer (latter can theoretically happen
+    if one of seconds will be removed due leap correction, or because of
+    general time correction like it happened for Africa/Monrovia time zone
+    in year 1972).
   */
   if (loop == 2 && t->hour != (uint) l_time->tm_hour)
   {
@@ -763,7 +775,8 @@ my_system_gmt_sec(const MYSQL_TIME *t, long *my_timezone, bool *in_dst_time_gap)
     else if (days > 1)
       days= -1;
     diff=(3600L*(long) (days*24+((int) t->hour - (int) l_time->tm_hour))+
-	  (long) (60*((int) t->minute - (int) l_time->tm_min)));
+	  (long) (60*((int) t->minute - (int) l_time->tm_min)) +
+          (long) ((int) t->second - (int) l_time->tm_sec));
     if (diff == 3600)
       tmp+=3600 - t->minute*60 - t->second;	/* Move to next hour */
     else if (diff == -3600)