If a facility in the modified Library refers to a function or a table of data to be supplied by an application program that uses the facility, other than as an argument passed when the facility is invoked, then you must make a good faith effort to ensure that, in the event an application does not supply such function or table, the facility still operates, and performs whatever part of its purpose remains meaningful.
Aldatutako liburutegiaren eginbide batek eginbide horrek erabiltzen duen aplikazio-programa batean datorren funtzio bati edo datu-taula bati egiten badio erreferentzia, eta ez eginbideari deitutakoan pasatzen den argumentuari, zure hobe beharrerako ziurtatu behar duzu, aplikazio batek funtzio edo taula hori hornitzen ez duen kasuan, eginbidea oraindik badabilela bere xedearen edozein zati beharrezkoa den bitartean.