OTHERDECLUSED

Message        <Context> "<name>" is not declared in a scope active
               at this point in the compilation.  However, there is
               a declaration of this identifer with extern storage
               class in another scope at <where>.  This declaration
               will be used.

Description    In some modes, if the compiler cannot find the
               declaration of an object in the current scope, it
               will search other scopes for extern declarations of
               that object.  If it finds such a declaration, it will
               be used.  Note that this is a language extension
               provided for compatibility with other compilers.

User Action    Declare the object so that it is visible at all
               places it is referenced.