Import these patches from the mainline:

    Import these patches from the mainline:

        2010-01-21  Nick Clifton  <nickc@redhat.com>

        * elflink.c (elf_link_add_object_symbols): Look up name of
        undefined symbol both before and after versioning has been
        applied.  Do not bother with symbols that are weakly undefined.

        2009-11-05  Nick Clifton  <nickc@redhat.com>

        * elflink.c (elf_link_add_object_symbols): Improve error
        message generated when a symbol is left unresolved because a
        --no-add-needed command line option has prevented the
        inclusion of the DSO defining it.

        2009-10-12  Roland McGrath  <roland@frob.com>

        * elflink.c (elf_link_add_object_symbols, _bfd_elf_merge_symbol):
        Fix %s that should be %B in several message formats.