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Re: Unintellegible ld error messages
On Sun, May 15, 2005 at 02:43:32PM -0400, Paul Koning wrote:
> >>>>> "Alan" == Alan Modra <amodra@bigpond.net.au> writes:
> Alan> _Unwind_GetIP as a hidden symbol in libgcc.a is not the
> Alan> problem. If you built libstdc++.so linked against libgcc_s.so,
> Alan> then when linking using libstdc++.so you need to have
> Alan> libgcc_s.so available, and, importantly, libgcc_s.so must be
> Alan> linked before libgcc.a if both are specified.
>
> Alan> If you built libstdc++.so only linked against libgcc.a, then
> Alan> you can use libstdc++.so like that too.
>
> Interesting. objdump says that libstdc++ requires libm, but not
> libgcc_s. And libm doesn't require anything.
Hmm. Perhaps you have hit a ld bug, but it seems to me that you have
given confliction information. If "The offending library is libstdc++"
then libstdc++.so contains an unsatisfied reference to _Unwind_GetIP,
which means libstdc++.so ought to refer to libgcc_s.so in a DT_NEEDED
tag.
--
Alan Modra
IBM OzLabs - Linux Technology Centre