Magento 1.9 : how to ovrride in lib/Zend folder inside currency.php file

Question

Override Magento root folder In lib/Zend/currency.php file possible or not.

Answer 1

Copy this file and move to app/code/local/Zend/currency.php this path

then local code pool file will be called instead of lib file

this is the only way to override lib folder files