/sys$common/syshlp/helplib.hlb CC, Messages, THREADNYI  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 Message        <Context> the __declspec(thread) storage class
                modifier is not implemented on this platform.  It
                will be ignored except to verify correct compile-time
                usage.

 Description    Thread-local storage is only supported on UNIX
                platforms.  The compiler will ignore the storage
                class modifier except to verify that it is correctly
                used.

 User Action    Remove the __declspec(thread) storage class modifier
                or compile the program on a platform that supports
                the modifier.