Re: glibc 2.1.2pre3

[Geoff Keating <geoffk@ozemail.com.au>]

> Cc: libc-alpha@sourceware.cygnus.com, x-linux-gcc@vger.rutgers.edu
> Reply-To: drepper@cygnus.com (Ulrich Drepper)
> From: Ulrich Drepper <drepper@cygnus.com>
> Date: 27 Aug 1999 16:54:49 -0700
> 
> Geoff Keating <geoffk@ozemail.com.au> writes:
> 
> > +This will let you build glibc with the C compiler.  The C++ compiler
> > +will still be binary incompatible with any C++ shared libraries that
> > +you got with your distribution.
> 
> Why this (the last part)?  Why are C++ shared object incompatible?

They use the wrong kind of exception handling (setjmp instead of
dwarf), among other things.

I think that egcs 1.2 and gcc 2.95 are also incompatible in a generic
way (something about vtables?), but haven't paid much attention to it.
I find it's easier to assume that every minor version is incompatible.

In any case, libstdc++ has a different version number.

-- 
Geoffrey Keating <geoffk@cygnus.com>