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

       /GST (default)
       /NOGST

    For Alpha linking, directs the linker to include in the global
    symbol table (GST) of a shareable image those symbols that have
    been declared as universal symbols in a symbol vector.