INCOMPELMNT

Message        <Context> the element type of an array type is
               incomplete.

Description    The element type of an array type is incomplete at
               the point in the program where the array is declared.
               While HP C will allow this if the element type is
               completed later, other compilers might require the
               type to be complete at this point in the program.

User Action    Either complete the type before the array
               declaration, or be aware of this if you wish to port
               the program.