InnoDB: Create temporary files in the MySQL tmpdir instead of $TMPDIR.

(Bug #5822)


sql/ha_innodb.cc:
  innobase_mysql_tmpfile(): pass mysql_tmpdir to create_temp_file(),
  so that the MySQL startup option tmpdir will be honored instead of
  the environment variable TMPDIR. (Bug #5822)

sql/ha_innodb.cc

@@ -424,7 +424,7 @@ innobase_mysql_tmpfile(void)
 {
 	char	filename[FN_REFLEN];
 	int	fd2 = -1;
-	File	fd = create_temp_file(filename, NullS, "ib",
+	File	fd = create_temp_file(filename, mysql_tmpdir, "ib",
 #ifdef __WIN__
 				O_BINARY | O_TRUNC | O_SEQUENTIAL |
 				O_TEMPORARY | O_SHORT_LIVED |