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

 Message        The block-level declaration of the function "<name>"
                specifies an explicit storage class other than
                extern.

 Description    A block-level declaration of a function has specified
                an explicit storage class other than extern.  Compaq
                C will change the storage class to extern.

 User Action    Either remove the storage-class specifier, or change
                it to extern.