VMS Help LINK, Qualifiers, /SELECTIVE_SEARCH  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       input-file-name/SELECTIVE_SEARCH

    When you append this qualifier to an input file specification,
    the linker processes only those symbols in the input file that
    are referenced by previously processed input files.

    The input-file-name is the name of the input file you want
    included in the link operation. The /SELECTIVE_SEARCH qualifier
    works only with object modules and shareable images. This
    qualifier is illegal with library files. (To process the modules
    in a library selectively, specify the /SELECTIVE_SEARCH qualifier
    when inserting the files into the library. For more information,
    see the OpenVMS Command Definition, Librarian, and Message
    Utilities Manual.)