Re: Bug#364231: [parisc-linux] Re: Bug#364231: exception catching

["John David Anglin" <dave@hiauly1.hia.nrc.ca>]

> Er, no; we're talking about official Debian packages here, and the
> libstdc++.so.6 in Debian is now from gcc-4.1.  The problem is precisely that
> GMP *is* being built using gcc-4.0, but libstdc++ is from gcc-4.1, resulting
> in the double libgcc_s problem.

Then, you must build *eveything* for hppa with gcc-4.1 or later.

Unfortunately, there's an ABI break.  Mixing libraries compiled with
4.0 or earlier with libraries compiled with 4.1 or later is just going
to cause unnecessary problems.   3.3 uses libstdc++.so.5, so you
avoid the double libgcc_s problem building GMP.  However, you still
have the ABI change affecting the passing and return of complex types.

At a fundamental level, libstdc++.so.6, libgfortran.so.1.0.0 and any
other gcc libraries built with 4.1 or later need glibc built with 4.1
to function correctly because of the various complex functions in
the math library.

I think there's a dynamic loader bug here as well.  I'm just
guessing but I think the double libgcc_s problem causes a problem
with the handling of .eh_frame data.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)