Merge trift2.:/MySQL/M51/clone-5.1

into  trift2.:/MySQL/M51/push-5.1


configure.in:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
storage/ndb/src/mgmsrv/Services.cpp:
  Auto merged
storage/ndb/src/ndbapi/NdbScanOperation.cpp:
  Auto merged

include/my_global.h

@@ -614,12 +614,17 @@ C_MODE_END
 #define _STATIC_VARARGS(X) X
 #define _PC(X)	X
 
+/* The DBUG_ON flag always takes precedence over default DBUG_OFF */
 #if defined(DBUG_ON) && defined(DBUG_OFF)
 #undef DBUG_OFF
 #endif
 
-#if defined(_lint) && !defined(DBUG_OFF)
-#define DBUG_OFF
+/* We might be forced to turn debug off, if not turned off already */
+#if (defined(FORCE_DBUG_OFF) || defined(_lint)) && !defined(DBUG_OFF)
+#  define DBUG_OFF
+#  ifdef DBUG_ON
+#    undef DBUG_ON
+#  endif
 #endif
 
 #include <my_dbug.h>

include/mysql.h

@@ -293,12 +293,6 @@ typedef struct st_mysql
   /* needed for embedded server - no net buffer to store the 'info' */
   char *info_buffer;
 #endif
-  /*
-    In embedded server it points to the statement that is processed
-    in the current query. We store some results directly in statement
-    fields then.
-  */
-  struct st_mysql_stmt *current_stmt;
 } MYSQL;
 
 typedef struct st_mysql_res {