VMS Help CC, Messages, THREADSTO1  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 Message        <Context> the __declspec(thread) storage class
                modifier requires a storage class of extern, static,
                or none.  Modifier is ignored.

 Description    Declaring a file-scope object with thread-local
                storage requires that the object have a storage class
                of extern, static or none.  In other cases, the
                compiler will ignore the __declspec(thread) storage
                class modifier.

 User Action    Either remove the storage class modifier or change
                the storage class to one that is valid for
                __declspec(thread).