COMMON           Define Overlapping Segments                     Combine Type

  segname   SEGMENT COMMON

    Causes the linker to overlap all segments having the same segment name
    at the same address, so that the instructions and data addresses in
    each such segment are offset from a common starting address.

       Notes:     In the overlapping structure that results from the
                  COMMON combine type, if data are declared in two or more
                  places with the same name, the most recent declaration
                  replaces all earlier declarations.

                  The length of the new overlapped segment is the length
                  of the longest segment with the COMMON combine type.

                  If no combine type is specified, the segment is not
                  combined with any other segments.