qtwebkit update problem in SL6

[John Pilkington]

I just updated my SL6 32-bit laptop, which hadn't been used for several 
weeks.  It seems to work well but libwebp cannot be updated because 
qtwebkit-2.3.3-1 requires libwebp.so.4 instead of the libwebp.so.5 now 
on offer.

Package: qtwebkit-2.3.3-1.el6.i686 (@kde-unstable/6.4)
     Requires: libwebp.so.4
     Removing: libwebp-0.2.1-0.2.el6.i686 (@kde-unstable/6.4)
         libwebp.so.4
     Updated By: libwebp-0.4.3-3.el6.i686 (epel)
         Not foundPackage: kde-runtime-libs-4.12.3-1.el6.i686 
(@kde-unstable/6.5)
     Requires: libwebp.so.4
     Removing: libwebp-0.2.1-0.2.el6.i686 (@kde-unstable/6.4)
         libwebp.so.4
     Updated By: libwebp-0.4.3-3.el6.i686 (epel)
         Not found

Thanks,

john P