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

 Message        This redeclaration of the static initialized variable
                "<name>" will have static storage class that differs
                from the VAX C behavior.  The previous declaration is
                at <location>.

 Description    In VAX C mode, if a variable is first declared static
                and then declared extern, the variable will be given
                extern storage class.  This matches the VAX C
                behavior.  If, however, the static variable is
                initialized, the storage class will remain static.

 User Action    Be aware of this difference.