eh_pc reference

[Martin v. Loewis]

> back in libstdc++.so.2.8.0 there was a symbol __eh_pc.  I haven't
> been able to find it in recent libraries.  Has it been obsoleted?

Yes. Exception handling in gcc 2.8 is not thread-safe; you can't use a
global variable to point to the program counter in the presence of
threads. With gcc 2.95, those data structures have to been changed to
be thread-local.

Regards,
Martin