Check if DIR_FS_WORK is defined.
Check if DIR_FS_WORK is defined.

Signed-off-by: Harald Ponce de Leon <e8c8c52193f3c6c1928a0b3a1709daa96876765a@oscommerce.com>
osCommerce/oscommerce,osCommerce/oscommerce,haraldpdl/oscommerce,haraldpdl/oscommerce