VMS Help CC, Messages, FUNCSTORCLS  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 Message        <Context> a function has an explicit storage class
                other than "static" or "extern".

 Description    This declaration specifies a storage class that is
                not valid for a function.  If an explicit storage
                class is used in a function declaration, it must be
                either static or extern.

 User Action    Either remove the storage class specifier, or use one
                of the valid storage classes.