PATCH: Put libunwind.a in libgcc_s.so: versioning of _Unwind_*() symbols

[Arnaud Charlet]

> Thanks for the info.  It was helpful.  I misunderstood the intent of
> your earlier message.

No problem. I know my messages are usually a little bit too much 'to the point'
and sometimes lack additional info/context. I'll try to improve that in the
future.

> I did a build over the weekend to try to reproduce HJ's result and came
> up empty.  Adding gthr-gnat.c to LIB2ADDEH had no effect on the
> ia64-linux Ada testsuite results, which is what I expected from my
> analysis and from your analysis.

OK, that confirms indeed the analysis made so far.

Now, we would need to find what in HJ's set up is different.
Like, what configure options are used, what bootstrap options are used,
what sources, and whether there are local changes in his tree.

Arno