graphics/giflib: Update to 5.1.2_1 breaks GIF rendering in Konqueror

[Mark Felder]

On Sun, Mar 6, 2016, at 04:15, Stefan Ehmann wrote:
> On 29.02.2016 18:25, Patrick Hess wrote:
> > Hi,
> >
> > After upgrading graphics/giflib from 5.1.1 to 5.1.2_1, Konqueror won't
> > display GIF images in web pages:
> >
> >      http://www.phess.net/images/giflib-bug.png
> >
> > On the left hand side, with giflib 5.1.1, everything looks as expected.
> > On the right hand side, after upgrading giflib to 5.1.2_1, none of the
> > GIF icons are rendered correctly. Only the Fresh Ports logo and the two
> > magnifying glass icons are still there (as they're JPEGs, not GIFs).
> 
> I located the problem. konqueror isn't the only program affected.
> 
> See https://sourceforge.net/p/giflib/bugs/84/
> 
> You can put my patch in the SF ticket in 
> /usr/ports/graphics/giflib/files/ to test it.
> 
> I'll wait some days to see if there's an upstream fix before submitting 
> a FreeBSD bugzilla ticket.
> 
> The gvpart workaround I mentioned previously doesn't really work BTW. 
> Some GIFs just worked by chance after konqueror restart.
> 

Hi,

The giflib update was security related so this is a regression due to
the update I pushed. I am very pleased you were able to identify the
issue at hand.

Please keep me / ports-secteam in the loop.


Thank you!

-- 
  Mark Felder
  ports-secteam member
  feld at FreeBSD.org