A weak symbol patch

[Ian Lance Taylor]

   Date: Wed, 7 Jul 1999 13:53:23 -0700 (PDT)
   From: hjl@varesearch.com (H.J. Lu)

   You missed a piece in mine. If you don't set ELF_LINK_HASH_REF_REGULAR
   when clearing ELF_LINK_HASH_DEF_REGULAR, no relocation will be
   generated at all and you will get a linker error:

Thanks for the note.  I tweaked the patch in a couple of ways.  I was
also running into trouble when dealing with weak versioned symbols;
the existing code let it wind up setting up an indirection from a
symbol to itself.

Ian