A
It might seem that Apple should ship an new InterfaceLib stub library with the
additional System 7.5 symbols. By default, however, the new symbols would not
be weak linked, and they would therefore send developers down the path of
creating binaries that don't run on System 7.1.
Instead, Apple has created a separate stub library, InterfaceLibSys7.additions, which contains only the new System 7.5 InterfaceLib symbols. Since it is a separate file, it is easier to weak-link (and to remember to weak-link!).
In Metrowerks, use the pop up next to the file-in-project window and mark the whole library weak-linked. In MPW, use -weak and list the new System 7.5 functions used.
Download Binhexed MetroWerks library file (2K)
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