Re: DSO linking changes for wheezy
Matt Turner, le Mon 15 Nov 2010 19:51:10 -0500, a écrit :
> On Mon, Nov 15, 2010 at 7:24 PM, Roger Leigh <firstname.lastname@example.org> wrote:
> > What's the actual problem --as-needed is trying to solve?
> > The answer is mainly unwanted libraries being linked in as a result
> > of using pkg-config (and various other -config variants), though there
> > are other, lesser, culprits. The pkg-config .pc files for gtk, gnome
> > and other libraries add in many libraries, most of which aren't
> > typically needed.
> > The solution: fix the .pc files!
> > Using --as-needed is merely papering over the actual root problem.
> > It "fixes" the symptoms, but it's not addressing the actual cause.
> > The number of packages providing broken .pc files is not large, and
> > the number breaking due to relying on this brokenness is likely
> > just as small.
> I can't see why you think --as-needed is fundamentally wrong or unnecessary.
> Check out http://www.gentoo.org/proj/en/qa/asneeded.xml
> --as-needed has saved tons of time for upgrades like Cairo in Gentoo,
> where Cairo had been linked to glitz which is now useless and gone.
Not a problem, if Cairo was properly exposing the dep.
> when people upgraded Cairo, all the software that linked against it
> (and also unnecessarily linked against glitz)
Why did it get linked against glitz? That's where the problem is.