Mainline bootstrap failure linking .libs/libstdc++.so.5.0.0 on sparcv9-sun-solaris2.9

[Brad Lucier]

> Looks like cxa_demangle.c and dyn-string.c are not being compiled with -fPIC.
> I believe this bug was just recently fixed on mainline in the past several
> hours.

Yes, thanks.  I did update after the fix was included, but it seems that it
takes some time for check-ins to propagate to subversions.gnu.org.

Brad