Fix for bug #12177 (errorlog file isn't closed)

4.1 version of the patch


libmysql/libmysql.c:
  here we close errorlog file
sql/mysql_priv.h:
  stderror_file declared
sql/mysqld.cc:
  stderror_file saved

libmysql/libmysql.c

@@ -188,6 +188,13 @@ void STDCALL mysql_server_end()
     mysql_thread_end();
   free_charsets();
   mysql_client_init= org_my_init_done= 0;
+#ifdef EMBEDDED_SERVER
+  if (stderror_file)
+  {
+    fclose(stderror_file);
+    stderror_file= 0;
+  }
+#endif
 }
 
 static MYSQL_PARAMETERS mysql_internal_parameters=

sql/mysql_priv.h

@@ -941,6 +941,7 @@ extern char *default_tz_name;
 
 extern MYSQL_LOG mysql_log,mysql_update_log,mysql_slow_log,mysql_bin_log;
 extern FILE *bootstrap_file;
+extern FILE *stderror_file;
 extern pthread_key(MEM_ROOT**,THR_MALLOC);
 extern pthread_mutex_t LOCK_mysql_create_db,LOCK_Acl,LOCK_open,
        LOCK_thread_count,LOCK_mapped_file,LOCK_user_locks, LOCK_status,

sql/mysqld.cc

@@ -382,6 +382,7 @@ Le_creator le_creator;
 
 
 FILE *bootstrap_file;
+FILE *stderror_file=0;
 
 I_List<i_string_pair> replicate_rewrite_db;
 I_List<i_string> replicate_do_db, replicate_ignore_db;
@@ -2767,7 +2768,7 @@ server.");
 #ifndef EMBEDDED_LIBRARY
       if (freopen(log_error_file, "a+", stdout))
 #endif
-	freopen(log_error_file, "a+", stderr);
+	stderror_file= freopen(log_error_file, "a+", stderr);
     }
   }