[Bug target/47558] 163267 breaks exception traceback in xplor-nih

[iains at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47558

--- Comment #29 from Iain Sandoe <iains at gcc dot gnu.org> 2011-02-01 23:53:31 UTC ---
(In reply to comment #28)
> Strangely this is insufficient to eliminate the crash (which still ends up in
> the FSF libgcc unwinder)...

> In fact, the only thing left which doesn't have the initial linkage on
> /usr/lib/libgcc_s.1.dylib. Is the xplor executable itself. 

Well, the failure in that case seems plausible ... 

by linking the libraries '-flat_namespace'  one has elected to have their
dependencies satisfied from whatever order the libraries are presented by the
next stage  of linking...

... So, when you link the final exe (without -flat_namespace) if the FSF
libgcc_s is presented first the dependent libs will use that - they have no
information to tell them that the symbols should really come from somewhere
else. 

If linking the final exe is done with -flat_namespace does it work?