Re: freeze exception for gcc-4.5 (i386, amd64 only)

[Pierre Habouzit <madcoder@madism.org>]

On Mon, Aug 23, 2010 at 12:45:35PM +0100, Roger Leigh wrote:
> On Mon, Aug 23, 2010 at 10:03:05AM +0200, Mike Hommey wrote:
> > On Mon, Aug 23, 2010 at 04:05:32AM +0200, Matthias Klose wrote:
> > > On 21.08.2010 14:56, Julien Cristau wrote:
> > > >On Fri, Aug 20, 2010 at 19:33:12 +0200, Arthur Loiret wrote:
> > > >
> > > >>Now, to be clear, what nice things would gcc-4.5 bring to our users?
> > > >>There is a complete list here [0], but those ones are, in my opinion,
> > > >>very nice:
> > > >>  - The new link time optimiser.
> > > >>  - Improved C++0x support.
> > > >>  - Plugins support.
> > > >>
> > > >My understanding is that lto in 4.5 is not quite there yet.  Not that
> > > >I've tried it or anything.
> > > 
> > > I don't share your understanding. I tried it for some builds.
> > 
> > Maybe it works on small things, but I heard it doesn't work very well
> > for stuff like mozilla. 4.6 is supposed to get better.
> 
> I'm certainly concerned about issues such as #593876 where the
> stricter linking breaks existing code.  I'm not sure about the
> rationale for this extra strictness, but it does cause
> unwanted breakage by breaking existing assumptions about
> indirect linking.

Well, I think you can revert to the old behaviour using --add-needed
(-Wl,--add-needed). But clearly, boost is wrong here, sadly.
-- 
·O·  Pierre Habouzit
··O                                                madcoder@debian.org
OOO                                                http://www.madism.org