Libgcc symbols

[Mark Mitchell]

Thank you for the discussion.

I think that there is no question about the __builtin_saveregs that
just aborts.  We can kill that one.  However, the other version of
__builtin_savergs should stay, unless the i860 port can stop using it,
which means it need to be in the exported symbol list.

RTH, did you decide whether or not we should keep the __bb stuff?

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Mark Mitchell                   mark@codesourcery.com
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