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

 Message        <Context> the type of the external "<name>" is not
                compatible with the type of a declaration of "<name>"
                in another name scope at <location>.

 Description    The same external identifier has been declared in
                different scopes with incompatible types.  This might
                not have been what you intended.

 User Action    Change all declarations of the same external
                identifier to use the same type.