Error message in CRM_Core_Smarty::__construct() using $smarty instead of $this

That's a stupid blunder.

In CRM_Core_Smarty::__construct()

existing:

if ( ! is_writable( $this->compile_dir ) ) {
echo "CiviCRM doeso not have permission to write temp files in {$smarty->compile_dir}, Exiting";
exit( );
}

correct would be:

if ( ! is_writable( $this->compile_dir ) ) {
echo "CiviCRM does not have permission to write temp files in {$this->compile_dir}, Exiting";
exit( );
}

$smarty is not defined in this context. Also, look at the funny "doeso" typo.

Severity: Does not cause trouble by itself, but confuses the person who wants to fix the file permissions.