config root man

# Test for BUG#51215 "log-error partially works with version 5.5"
# when --log-error is used without argument

# check displayed value. We can check only the suffix, because
# the rest depends on paths, symbolic links, --vardir, etc...
--disable_warnings
select (@err_log:=variable_value)*0 from information_schema.global_variables where variable_name="log_error";
--enable_warnings
select instr(@err_log, ".err")>0;

# Check file's existence. The displayed value may be relative or not.
let $err_log=`select @err_log`;
let $err_log_relative=`select instr(@err_log, ".")=1`;
if ($err_log_relative)
{
  let $MYSQLD_DATADIR= `SELECT @@datadir`;
  file_exists $MYSQLD_DATADIR/$err_log;
}
if (!$err_log_relative)
{
  file_exists $err_log;
}